Subject of the Invention
The subject of the invention relates to a washing system positioned on the water closet
bowl, a water closet with washing system and a method for washing the water closet bowl
using the washing system according to the invention.
State of the Art
In the event that adequate cleaning is not provided, serious hygiene problems occur in the
water closets of the houses or common use areas such as workplaces where we spend most
of our time. Most of the sanitary ware products used in the present state of the art comprise
a section called ring, and are known as water closets with ring or channel. By means of the
holes having various size and diameters which are drilled on the inner bowl or rim in the
water closets with ring, washing of the water closet bowl is provided (Figure 1). However,
performing either washing or cleaning processes through these holes drilled on the water
closet bowl creates an unfavorable environment in terms of hygiene in time.
In the water closets without ring or channel used in the present state of the art, on the other
hand, washing process is realized by means of the channel or apparatus through which the
water coming from the clean water channel is directed into the water closet. In the known
systems, water flow into the bowl is possible by means of the holes on the side channels
positioned on the bowl.
However, during the use of the washing system and the water closet developed within the
scope of the invention, washing is performed from the front side of the water closet
differently from the present state of the art. The water closet developed does not comprise
ring or channel and thus creates a favorable conditions in terms of hygiene.
l
Brief Description of the Invention
The subject of the invention relates t o a washing system positioned on the water closet
bowl, a water closet with washing system and a method for washing the water closet bowl
using the washing system according to the invention.
The subject of the invention relates to a washing system which is positioned on the water
closet, wherein the clean water coming from the reservoir moves through the inlet channel
and directly reaches to the front section of the water closet through the channel and from
this section washing process of the water closet bowl is realized. The bowl structure is
developed with CFD (Computational Fluid Dynamics) analysis, geometric structure of the
bowl is developed so as t o provide the water coming from the front to perform the washing
conditions (function test) allowed by the standards. A new water closet bowl is also designed
within the scope of the invention. With the CFD (Computational Fluid Dynamics) analysis of
the water coming from the front or of the way followed by the water, a new bowl design is
developed.
The bowl system developed within the scope of the invention is a bowl system without ring.
Water ways for carrying the water to the front on the bowl are available. Thanks to the bowl
system developed within the scope of the invention, water can easily be conveyed t o the
desired points.
Description of the Figures:
Figure 1(a): The view of the washing system used in the water closets with ring in the
present state of the art
Figure 1(b): The top view of the washing system used in the water closets with ring in the
present state of the art
Figure 1(c): The side view of the A-A cross-section, which is shown in Figure IB, of the
washing system used in the water closets with ring in the present state of the art and the
flow direction of the water closet
Figure 2(a): The water closet without ring (without channel) configured in the operations
within the scope of the invention and the water distribution channel distributing the water
t o the bowl in the washing system
Figure 2(b): The water closet without ring (without channel) configured in the operations
within the scope of the invention and the hidden water channel section which provides the
water to move forward in the washing system
Figure 2(c): The side view of the water closet without ring (without channel) and the
washing system configured in the operations within the scope of the invention
Figure 2(d): The water closet without ring (without channel) configured in the operations
within the scope of the invention and the flush and bowl section which performs washing
and fulfills the function in the washing system
Figure 3(a): Top view of the water closet without ring (without channel) configured in the
operations within the scope of the invention and the hidden inner channel which provides
the forward movement of the water in the washing system
Figure 3(b): The side cross-sectional view of the water closet without ring (without channel)
and the washing system configured in the operations within the scope of the invention
Figure 3(c): The front view of the BB cross-section, which is shown in Figure 3a, of the water
closet without ring (without channel) and the washing system configured in the operations
within the scope of the invention
Figure 4(a): The top view of the hidden water channel which provides the forward
movement of the water in the water closet without ring (without channel) and the washing
system developed within the scope of the invention
Figure 4(b): The side cross-sectional view of the water closet without ring (without channel)
and the washing system developed within the scope of the invention
Figure 4(c): The front view of the DD cross-section, which is shown in Figure 4a, of the water
closet without ring (without channel) and the washing system developed within the scope of
the invention
Figure 5 (a): The comparison of the top view of the water closet and the washing system
configured first within the scope of the invention with the hidden channel and the
modifications made in the bowl of the water closet and the washing system developed
finally as a result of the test operations made on the system configured first
Figure 5 (b): The comparison between the CC cross-section, which is shown in Figure 3b, of
the water closet and the washing system configured first within the scope of the invention
and the EE cross-section, which is shown in Figure 4b, of the water closet and the washing
system developed finally as a result of the test operations made on the system configured
first
Figure 6(a): The comparison of the top views of the cross-sections with different lengths in
the water closet and the washing system developed finally as a result of the test operations
made on the water closet and the washing system configured first within the scope of the
invention
Figure 6(b): The side FF cross-sectional view of the water closet and the washing system
developed finally as a result of the test operations made on the water closet and the
washing system configured first within the scope of the invention
Figure 6(c): The front cross-sectional view taken 200 mm away from the clean water inlet in
the water closet and the washing system developed finally as a result of the test operations
made on the water closet and the washing system configured first within the scope of the
invention
Figure 6(d): The front cross-sectional view taken 300 mm away from the clean water inlet in
the water closet and the washing system developed finally as a result of the test operations
made on the water closet and the washing system configured first within the scope of the
invention
Figure 6(e): The front cross-sectional view taken 400 mm away from the clean water inlet in
the water closet and the washing system developed finally as a result of the test operations
made on the water closet and the washing system configured first within the scope of the
invention
Figure 7 (a): The top view of the distribution channel in the water closet and the washing
system developed within the scope of the invention
Figure 7 (b): The distribution channel distributing water into the bowl from the front in the
water closet and the washing system configured first within the scope of the invention
Figure 7 (c): The distribution channel distributing water into the bowl from the front of the
water closet developed as a result of the operations made on the system configured first
within the scope of the invention
Description of the References:
1: Hidden inner channel
la: Right channel
lb: Left channel
2 : Distribution channel
2a: Right guide hole
2b: Left guide hole
2c: Middle guide hole
3: Bowl
4 : Clean water channel
5: Water way
Rl : Diameter of the section conveying water in the bowl configured first
Rl : Diameter of the section conveying water in the bowl developed within the scope of the
invention
R2x: Side diameter of the bowl configured first
R2 : Side diameter of the bowl developed within the scope of the invention
R3: Side wall diameter of the water way
R4 : FF cross-sectional inner bowl diameter in the bowl configured first
R4 : FF cross-sectional inner bowl diameter in the bowl developed within the scope of the
invention
R i Inner bowl back diameter in the bowl configured first
R5 : Inner bowl back diameter in the bowl developed within the scope of the invention
R6i: Diameter of the section of the inner bowl forming pressure on the flush in the bowl
configured first
R6 : Diameter of the section of the inner bowl forming pressure on the flush in the bowl
developed within the scope of the invention
R7i: Turn-around diameter of the water in the inner bowl of the bowl configured first
R7 : Turn-around diameter of the water in the inner bowl of the bowl developed within the
scope of the invention
X: Distance which shows upward lifting of the bowl from its first configuration state
Description of the Invention:
The subject of the invention relates t o a washing system positioned on the water closet
bowl, a water closet with washing system and a method for washing the water closet bowl
using the washing system according t o the invention.
The water closet developed within the scope of the invention and the washing system
positioned thereon comprise three main sections. The water closet and the washing system
developed comprise a hidden inner channel (1) conveying the water to the front section of
the water closet with the right channel (la) and the left channel (lb) thereof, a distribution
channel (2) having at least three holes directing the clean water coming from the hidden
inner channel into the water closet bowl and a bowl (3) section which performs washing and
fulfills the function. Washing system according to the invention is seen in Figures 4 and 7.
Until the final form is given to the washing system, arrangements are made on the system
configured first which is shown in Figures 2 and 3.
Thanks to the washing system developed within the scope of the invention, the clean water
coming from the reservoir to the water closet is directed to the water closet from the clean
water channel (4) and moves through a hidden inner channel (1), which is not seen when
looked at from the outer section of the water closet, and reaches to the front section of the
water closet from both right and left of the bowl, namely from the two sides edges thereof,
with the right channel (la) and the left channel (lb) of the inner channel (1), and flows into
the water closet bowl (3) with the water distribution channel (2) positioned in this section.
Three holes are positioned on the distribution channel (2) which is positioned in the front
section of the water closet bowl. Said holes are the right guide hole (2a) at the right side, left
guide hole (2b) at the left side and middle guide hole (2c) between the two holes, when
looked at the water closet from the front. Of these holes, the right guide hole (2a) directs
the water, which reaches to the front section of the water closet by passing through the
inner channel (1), into the bowl from the right, the left guide hole (2b) directs the water
from the left, and the middle guide hole (2c) directs the water directly downward from the
center into the bowl.
Hidden inner channel (1) conveying the clean water coming from the reservoir to the front
section of the water oset is quite important for transferring the water properly to the front
section of the water closet. This section should have such a structure that the water is not
slowed down by striking to the wall upon entering into the channel. It is important for said
channel not to have sharp corners t o prevent the speed of the water from slowing down.
Moreover, width of the channel has also a role in rapidly transferring the clean water which
enters into the channel, to the front section of the water closet (Figure 4a). The hidden
inner channel structure shown in Figure 3a is thus developed and takes its form in Figure 4a.
Instead of the sharp corners shown in Figure 3a it is provided with the form in Figure 4a.
The area contacting with water should be quite small and the hole diameters should have
certain sizes in the water distribution channel (2). Moreover, diameters of the three holes
(2a, 2b, 2c), which direct the water into the bowl, are also quite important for providing this
section to spread the water into the bowl in a better way. The final distribution channel
structure is shown in Figure 7c. Its form configured in the first operations, however, is given
in Figure 7b.
Water passes from the distribution channel (2) to the inner bowl (3) where the actual
washing is performed. Inner bowl (3) should provide washing as set forth by the standards
by pushing the water to the back sides as much as possible to perform the washing
completely. Thus, the bowl (3) should have such a form that the water can appropriately be
distributed to the entire surface (Figures 4b, 4c). Different slopes are given to the bowl
developed within the scope of the invention at certain points and at least one water way (5)
is formed in the bowl.
Water closet and washing system according t o the invention are shown in Figure 4. Hidden
inner channel (1) conveying the water to the front is shown in figure 4a, water distribution
channel (2) distributing the water coming from the hidden inner channel (1) into the bowl is
shown in figure 4b, and bowl (3) which provides washing and cleaning in accordance with
the standards is shown in figure 4c.
In order to obtain a bowl structure, hidden inner channel and water distribution channel
with properties specified within the scope of the invention, many test operations are carried
out and different shapes and sizes are tried and the most efficient bowl structure, hidden
inner channel and distribution channel structure are obtained. An example to the washing
system developed during these operations is given in Figure 3. The top views of the water
closet bowl, hidden inner channel and water distribution channel are shown in Figure 3a.
This operation is quite important as it is the operation which is configured first, guides the
improvements to be made on the washing system and is used in the experimental studies. In
light of the experiences obtained from this first configuration, the washing system is
redeveloped; a new water closet and washing system, which will exceed the function test
criteria demanded for 6 L by the standards, is developed. The view of the water closet and
washing system developed within the scope of the invention is given in Figure 4. The
differences between water closet and washing system developed and the water closet and
the washing system configured first are shown in Figure 5. Figure 5 shows the clean water
inlet section, the change of the sharp sections in the hidden inner channel and the diameter
changes made in the bowl. As seen in Figure 5b, the turn-around diameter of the water in
the inner bowl is increased from 0105 (R7i) up t o 0250 (R72).
In Figure 6a, on the other hand, FF cross-sectional view of the water closet and the washing
system developed by making modifications in the water closet and the washing system
configured first, cross-sectional views taken 200 mm, 300 mm and 400 mm away from the
clean water inlet and the modifications made can be seen.
FF cross-sectional view of the water closet and the washing system configured first and
water closet and washing system developed subsequently is given in Figure (6b). It is seen in
the FF cross section that the bowl system, in which the washing is performed, is narrowed in
order to provide moving of the water further and increase the pressure of the water applied
on the waste dirt. Namely, inner bowl diameter (R4i) is decreased from 01080 down to (R4 )
0 800, inner bowl back diameter (R5i) is decreased from 0 150 down to (R5 ) 090 and
diameter (R6i) of the section of the inner bowl forming pressure on the flush is decreased
from 090 down to (R62) 060 as seen from the FF cross-section.
The cross-sectional view taken 200 mm away from the first point where the clean water
enters into the system is shown in Figure (6c). Bowl is lifted 35 mm upward from its first
configuration state to perform washing in a better manner, and this distance is shown with X
in the figures. Bowl inner structure is narrowed. Water way (5) is formed into the bowl so as
to convey the water to the more forward points. It is observed that maximum efficiency is
obtained when the width and angle of the water way (5) are 17 mm and 25°. Diameter of the
section conveying water is decreased from (Rl ) 0100 down to (Rl 2) 050 so as to provide a
better washing and side diameter of the bowl is decreased from (R2i) 0400 down to (R2 )
0200. In this section, side wall diameter of the water way is (R3) 0 24.
The cross-sectional view taken 300 mm away from the first point where the clean water
enters into the system is shown in Figure (6d). Bowl inner structure is narrowed. 17 mm
width and 25° angle of the water way formed into the bowl to convey the water to the more
forward points are maintained. Diameter of the section conveying water is decreased from
(Rli) 085 down to (Rl ) 050 so as to provide a better washing and side diameter of the bowl
is decreased from (R2i) 0600 down to (R22) 0500. In this section, side wall diameter of the
water way is (R3) 0 24.
The cross-sectional view taken 400 mm away from the first point where the clean water
enters into the system is shown in Figure (6e). The width of the water way (5) formed into
the bowl to convey the water to the more forward points is decreased down to 10 mm
unlike other cross-sections, however; the angle thereof is maintained as 25°. Thus, width of
the water way (5) has such a structure that is narrowed from the water inlet point toward
the end sections. In other words, water way maintains its width from the water inlet point to
the 400 mm distance, but it decreases down to 10 mm after this point. Diameter of the
section conveying water is decreased from (Rl ) 065 down to (Rl 2) 030 so as to provide a
better washing and side diameter of the bowl is decreased from ( 2i ) 0500 down to (R22)
0400.
Clean water distribution channel (2) is shown in Figure 7a. Clean water passes through the
hidden inner channel (1) and reaches to the distribution channel (2). Distribution channel
(2), however, directs the water to the inner bowl (3) thanks to the holes (2a, 2b, 2c) thereon.
The operation of the washing system according to the invention is based on the principle
that the water in the free-flowing state when the reservoir button is pushed passes through
the clean water channel (4) and reaches to the inner channel (1), and then reaches to the
distribution channel (2) with the guide of the inner channel, enters into the water closet
bowl (3) through the holes (2a, 2b, 2c) drilled in certain angles on the distribution channel
(2) and performs washing in the bowl. Water flows into the bowl (3) by being guided by
means of at least three guide holes (2a, 2b, 2c) positioned on the distribution channel (2)
within the washing system. Clean water flows into the water closet bowl (3) from the right,
left and center by means of the guide holes (2a, 2b, 2c) positioned in the system. Right
guide hole (2a) and the left guide hole (2b) provide the water to flow into the bowl (3) from
the right and the left, respectively. Likewise, water directly flows into the water closet bowl
(3) through the middle guide hole (2c) between the right and left guide holes (2a, 2b) in the
center section on the distribution channel (2). Right and left guide holes (2a, 2b) direct the
water coming at a certain speed backwards within the bowl (3) and the water coming
through both holes (2a, 2b) is combined in the center and creates a waterfall within the
bowl. Thanks to this waterfall, an effective washing is performed with the water flowing
through the center guide hole (2c) positioned in the middle section of the distribution
channel (2).
The size of the guide holes (2a, 2b, 2c) positioned on the distribution channel (2) and the
intensity of the coming water are quite important for the efficient operation of the washing
system. Small size of the distribution channel (2) provides the coming water t o be distributed
into the bowl with higher pressure. Within the invention studies are carried out on the
distribution channel and first the distribution channel which is shown in Figure 7b has been
developed while the washing system is configured. However, sufficient pressure cannot be
supplied for washing with the distribution channel (2) developed in this size and shape and
function test stage is failed. Thus, optimal water distribution channel (2) obtained as result
of the tests is given in Figure 7c. Diameter of the right and left guide holes (2a, 2b) of the
distribution channel (2) in the washing system developed within the scope of the invention is
016 mm. Diameter of the middle guide hole (2c) which is positioned between the right and
left guide holes (2a, 2b) and which is smaller than the other two holes, on the other hand, is
0 5 mm.
In the water closet and washing system developed within the scope of the invention,
washing system is quite useful in that it is made of completely ceramic product, provides an
effective washing by distributing the water coming from the clean water channel (4)
properly inside the bowl (3), provides an aesthetic appearance, is a water closet without ring
(without channel) and thereby provides the cleaning to be performed easily.

CLAIMS
1. A water closet which does not comprise a ring/channel, characterized in
comprising
• at least one hidden inner channel (1) conveying the water coming from at
least one clean water channel (4) to the front section of the water closet;
• water distribution channel (2) positioned at the front section of the water
closet and comprising at least three holes which are right guide hole (2a), left
guide hole (2b) and middle guide hole (2c) between said two holes; and
• bowl (3) where the washing process is performed.
2. The water closet as in Claim 1, characterized in that said hidden inner channel (1)
comprises at least two separate channels which are right channel (la) and left
channel (lb).
3. The water closet as in Claim 1, characterized in that diameter of the right guide
hole (2a) and the left guide hole (2b) of said water distribution channel is 016
mm.
4. The water closet as in Claim 1, characterized in that diameter of the middle guide
hole (2c) positioned between said left guide hole and right guide hole is 0 5 mm.
5. The water closet as in Claim 1, characterized in that said bowl (3) comprises at
least one water way (5).
6. The water closet as in Claim 5, characterized in that the width of said water way
(5) is 17 mm at the section 400 mm away from the water inlet point, but has a
structure narrowing down to 10 mm after this point.
7. The water closet as in Claim 6, characterized in that the angle of said water way
(5) is 25°.