Claims:1. A sealing unit comprising:
a top cover element, wherein a lower base (106) has a first horizontal profile (102) extending to a first obtusely angled profile (104);
a lower cover element, wherein the lower cover element includes a second horizontal profile (108) characterized in that the second horizontal profile (108) defines a special groove element (114) configured with a vertical profile (116) continuing to a third horizontal profile (112), wherein the third horizontal profile (112) is at a lower level than the second horizontal profile (108) and a continuing to a second obtusely angled profile (110) running to meet the second horizontal profile (108); and
a sealing element (118), placed within the special groove element (114) such that when the top cover element is pressed on to the lower cover element, then the sealing element (118), due to pressure, extends towards and in between the first obtusely angled profile (104) and the second horizontal profile (108) for creating a band of contact pressures across the width of the sealing element.

2. The unit as claimed in claim 1, wherein said sealing element (118) is anyone of a gasket sealing, a pusher sealing, a non-pusher sealing, an unbalanced sealing, a balanced sealing, a conventional sealing, and a cartridge sealing.

3. The unit as claimed in claim 2, wherein said gasket sealing (118) is anyone of an envelope gasket, a FIP (Form In Place) gasket, a ring type gasket, a spiral wound gasket, and a corrugated gasket.

4. The unit as claimed in claim 1, wherein said top cover is made of plastic or metal.

5. The unit as claimed in claim 1, wherein said lower cover is made of plastic or metal.

6. The unit as claimed in claim 1, wherein said special groove element (114) shape is anyone of a V shaped special groove, a bevel special groove, a J special groove, a flare V special groove, a flare bevel special groove, a square shaped special groove, a rectangular shaped special groove, and a U shaped special groove.

7. The unit as claimed in claim 1, wherein said sealing element (118) has pressure lies in the range of 16 MPa to 18 MPa and average pressure lies in the range of 4 MPa to 6 MPa.

8. The unit as claimed in claim 1, wherein said sealing element (118) strain is always greater than 250 to 300 percentage.

9. The unit as claimed in claim 1, wherein said special groove element (118) width lies in the range of 1.92mm to 1.97 mm.

10. The unit as claimed in claim 1, wherein said special groove element (118) depth lies in the range of 1.5mm to 2mm.

11. The unit as claimed in claim 1, wherein said special groove element (114) top and bottom filet lies in the range of 0.3mm to 0.5mm.
, Description:FIELD OF THE INVENTION
[0001] The present disclosure is generally related to a sealing structure and more particularly to a sealing unit for sealing a space between two cover elements by mounting a sealing element in a special groove portion provided on a surface to be sealed of the top cover element with the lower cover element.
BACKGROUND OF THE INVENTION
[0002] The mechanical seal is a device that prevents leakage (for example, in a pumping system), contains pressure, or excludes contamination in any systems and mechanisms. In sealing, adhesion is crucial for sealants, while compression is crucial for gaskets.
[0003] The purpose of the gaskets is to create a static seal between two stationary parts of a mechanical assembly and to keep that seal in place under variable operating conditions that change with pressures and temperatures. In any system or device, mechanical sealing is important. It prevents the fluid from entering in any system which can cause damage to it. It is also used to prevent the leakage of one high-pressure fluid into a lower pressure fluid or vice-versa.
[0004] Many sealing assemblies requires a groove for sealing of the members under extreme operating conditions, such as high operating pressures and temperatures. Many sealing assemblies used a mating special groove, and O-ring for providing the proper sealing. But these sealing assemblies sometimes fail to serve their purpose because of their groove structure, sealing elements, and variations in their parts. The sealing elements needs right amount of contact pressure to seal against particular pressure difference, but this is always difficult to achieve due to the strain limit of the sealing element versus required contact pressure.
[0005] US4832349A discloses a FIP (Formed In Place) gasket arrangement. A FIP (Formed In Place) gasket arrangement includes three hollow parts which are joined with each other in such a way as to sealingly separate the inside and outside thereof. Two of the parts have surfaces which are flush with each other and adjoin at a line extending between the inside and outside of the two parts. The remaining one of the parts has a surface joined with the surfaces of the two parts by interposing therebetween an FIP gasket. The two parts also have edges extending along the above-mentioned line, one of the edges being partially chamfered to provide a chamber. The FIP gasket has a portion filling the chamber.
[0006] Conventionally, there exist various structures and units for proper sealing against leakage of fluids. However, in order to achieve the objective, a plurality of sealing elements and a plurality of special grooves may be used for sealing two members mechanically.
[0007] In order to overcome the aforementioned drawbacks, there is a need to provide a sealing unit that is an enhancement to the normal sealing structure in which the gasket element remains firmly engaged and retained within a special groove for preventing leakage and loss of pressure at connection points, thereby providing ease of assembly.
OBJECTIVES OF THE INVENTION
[0008] The principal objective of the present invention is to overcome the disadvantage of the prior art.
[0009] Another objective of the present invention is to provide a sealing unit for sealing a space between two cover elements by mounting a FIP (Form In Place) gasket in a special groove portion.
[0010] Another objective of the present invention is to provide a sealing structure with minimum gasket compression and maximum filling ratio into the special groove.
[0011] Another objective of the present invention is to provide the sealing unit which avoids the sudden leakage of the fluids.
[0012] Another objective of the present invention is to provide the sealing structure that eliminates the need for a mold for the sealing element, thereby reducing upfront costs and reducing lead times.
[0013] Another objective of the present invention is to provide the ease of assembly with the form in place sealing element.
SUMMARY OF THE INVENTION
[0014] The present invention relates to a sealing unit for sealing a top cover element with a lower cover element by dispensing a sealing element onto a special groove in order to get a reliable seal, thereby reducing leakage of the fluid from a product.
[0015] According to an embodiment of the present invention, a sealing unit for mechanical coupling, comprising, a top cover element, wherein a lower base has a first horizontal profile extending to a first obtusely angled profile, a lower cover element including a second horizontal profile which includes a special groove element (like V shaped special groove, a bevel special groove, a J special groove, a flare V special groove, a flare bevel special groove, a square shaped special groove, a rectangular shaped special groove, and a U shaped special groove) whose width, depth, top and bottom filet lies in the range of 1.92mm to 1.97 mm., 1.5mm to 2mm, and 0.3 to 0.5 mm respectively, configured with a vertical profile continuing to a third horizontal profile, wherein the third horizontal profile is at a lower level than the second horizontal profile and a continuing to a second obtusely angled profile running to meet the second horizontal profile.
[0016] According to an another embodiment of the present invention, the sealing unit further comprising a sealing element that is anyone of a gasket sealing, a pusher sealing, a non-pusher sealing, an unbalanced sealing, a balanced sealing, a conventional sealing, and a cartridge sealing, inserted within the special groove element such that when the top cover element is pressed on to the lower cover element, then the sealing element, due to pressure, extends towards and in between the first obtusely angled profile and the second horizontal profile, wherein the gasket sealing is anyone of an envelope gasket, a FIP (Form In Place) gasket, a ring type gasket, a spiral wound gasket, and a corrugated gasket, their pressure lies in the range of 16 MPa to 18 MPa ,average pressure lies in the range of 4 MPa to 6 MPa, and strain is always greater than 250 to 300 percentage.
BRIEF DESCRIPTION OF THE DRAWINGS
[0017] The accompanying drawings illustrate various embodiments of systems, methods, and embodiments of various other aspects of the disclosure. Any person with ordinary skills in the art will appreciate that the illustrated element boundaries (e.g. boxes, groups of boxes, or other shapes) in the figures represent one example of the boundaries. It may be that in some examples one element may be designed as multiple elements or that multiple elements may be designed as one element. In some examples, an element shown as an internal component of one element may be implemented as an external component in another, and vice versa. Furthermore, elements may not be drawn to scale. Non-limiting and non-exhaustive descriptions /are described with reference to the following drawings. The components in the figures are not necessarily to scale, emphasis instead being placed upon illustrating principles.
[0018] Fig.1 is a sectional view showing a sealing unit 100 wherein two cover elements are assembled by fastening with a gasket; and
[0019] Fig. 2 is a sectional view showing compression process 200 of the gasket when the two cover elements are assembled.
DETAILED DESCRIPTION
[0020] Embodiments of the present disclosure will be described more fully hereinafter with reference to the accompanying drawings in which like numerals represent like elements throughout the several figures, and in which example embodiments are shown. Embodiments of the claims may, however, be embodied in many different forms and should not be construed as limited to the embodiments set forth herein. The examples set forth herein are non-limiting examples and are merely examples among other possible examples.
[0021] Some embodiments of this invention, illustrating all its features, will now be discussed in detail. The words “comprising,” “having,” “containing,” and “including,” and other forms thereof, are intended to be equivalent in meaning and be open ended in that an item or items following any one of these words is not meant to be an exhaustive listing of such item or items or meant to be limited to only the listed item or items.
[0022] It must also be noted that as used herein and in the appended claims, the singular forms “a,” “an,” and “the” include plural references unless the context clearly dictates otherwise. Although any systems and methods similar or equivalent to those described herein can be used in the practice or testing of embodiments of the present invention, the preferred systems and methods are now described.
[0023] The present invention relates to a sealing unit 100 in which a sealing element 118 is interposed between a top cover element and a lower cover element that are in contact with each other in order to prevent leakage of fluids from the joints.
[0024] The sealing unit 100 includes a top cover element that consists of a first horizontal profile 102 extending to an obtusely angled profile 104 at a lower base 106, a lower cover element that consists of a second horizontal profile 108 including a special groove element 114 and a third horizontal profile 112 that is connected to a second obtusely angled profile 110, and the sealing element 118 for inserting into the special groove element 114.
[0025] Fig.1 is a sectional view of the sealing unit 100. The sealing unit 100 essentially includes the top cover element that is made of plastic. The top cover element has the lower base 106 that includes the first horizontal profile 102 expanding to the first obtusely angled profile 104. The unit 100 further includes a lower cover element, wherein the lower cover element includes a second horizontal profile 108 characterized in that the second horizontal profile 108 includes the special groove element aligned with a vertical profile 116 continuing to the third horizontal profile 112. The third horizontal profile 112 is placed at a lower level than the second horizontal profile 108. The third horizontal profile 112 is also expanding towards the second obtusely angled profile 110 running to meet the second horizontal profile 108. The lower cover element is also made of plastic or metal.
[0026] The sealing unit includes the sealing element 118, placed within the special groove element 114 such that when the top cover element is pressed on to the lower cover element, then the sealing element 118, due to pressure, extends towards and in between the first obtusely angled profile 104 and the second horizontal profile 108 for creating a band of contact pressures across the width of the sealing element. The sealing element 118 is anyone of a gasket sealing, a pusher sealing, a non-pusher sealing, an unbalanced sealing, a balanced sealing, a conventional sealing, and a cartridge sealing. The gasket sealing 118 is anyone of an envelope gasket, a FIP (Form In Place) gasket, a ring type gasket, a spiral wound gasket, and a corrugated gasket. The sealing element 118 has pressure lies in the range of 16 MPa to 18 MPa and average pressure lies in the range of 4 MPa to 6 MPa. The sealing element 118 strain is always greater than 250 to 300 percentage.
[0027] Now referring to Fig. 2, depicting a compression process 200 of the gasket sealing 118 when the two cover elements are assembled. The gasket element 118 body has a dispersion termination joint that is inserted into the special groove element 114. When the pressure is applied to the top cover element, the gasket body 118 is compressed in the direction of the depth of the special groove element 114. The joint is tapered in the form of the semi-circle (as shown in fig. 1) in such a manner that the width is gradually reduced towards the second horizontal profile 108 so that the space of the special groove element 114 is filled and the gasket 118 framed the same special groove element 114 shape when it is compressed.
[0028] The FIP (Form In Place) gaskets 118 are meant to seal. The gasket 118 is a sealing material that is placed in between a connecting flange in order to seal them. A semi-liquid anaerobic sealant is spread in between the cover elements onto the special groove 114 in order to create a strong, durable seal between the two plastic cover elements. This sealing element 118 offers good compressibility. The FIP gasket 118 becomes dry or flat when they are applied in between the first obtusely angled profile 104 and the second horizontal profile 108 in order to form an elastic membrane after a certain period of time. The gasket element 118 is applied in a form of viscous fluid and then solidifies while copying the profiles of the joining surfaces of the both above-mentioned profile (104,108). The gasket 118 is framed into a predetermined shape of the surfaces prior to installation. The FIP gasket 118 is made at room temperature and its material is rubber. They are providing a strong seal in between the profile (102,104,108,110,112,116) against any type of fluid to avoid leaking in variable operating conditions. A sealant is used as the sealant between the heat sink and the plastic covers.
[0029] The sectional shape of the gasket body 118 is same as the special groove shape 114. The special groove element 114 shape is anyone of a V shaped special groove, a bevel special groove, a J special groove, a flare V special groove, a flare bevel special groove, a square shaped special groove, a rectangular shaped special groove, and a U-shaped special groove. The special groove element 114 width lies in the range of 1.92mm to 1.97 mm. The special groove element 114 depth lies in the range of 1.5mm to 2mm. The special groove element 114 top and bottom filet lies in the range of 0.3mm to 0.5mm.
[0030] Moreover, although the present invention and its advantages have been described in detail, it should be understood that various changes, substitutions and alterations can be made herein without departing from the invention as defined by the appended claims. Moreover, the scope of the present application is not intended to be limited to the particular embodiments of the process, machine, manufacture, composition of matter, means, methods and steps described in the specification. As one will readily appreciate from the disclosure, processes, machines, manufacture, compositions of matter, means, methods, or steps, presently existing or later to be developed that perform substantially the same function or achieve substantially the same result as the corresponding embodiments described herein may be utilized. Accordingly, the appended claims are intended to include within their scope such processes, machines, manufacture, compositions of matter, means, methods, or steps.