FIELD OF THE INVENTION
[001] The present invention, in general, relates to an air cleaner outlet hose in vehicles and, more particularly, to an air cleaner outlet hose with improved sealing at throttle body side
BACKGROUND OF THE INVENTION
[002] Background description includes information that may be useful in understanding the present invention. It is not an admission that any of the information provided herein is prior art or relevant to the presently claimed invention, or that any publication specifically or implicitly referenced is prior art.
[003] An air cleaner outlet hose in an IC engine is assembled in between an air cleaner and a throttle body. The cleaned air from the air cleaner assembly is supplied into an air intake manifold of the IC engine through the air cleaner outlet hose.
[004] A phenomenon of blow-by occurs in an IC engine when the explosion occurring in the IC engine's combustion chamber causes fuel, air and moisture to be forced past the rings into the crankcase. If the blow-by gases is left inside of the engine, the engine oil would become frothy and would lose its lubricating properties. Further, without a vent, the blow-by gases would attempt to escape around the pistons by seeping past the piston rings. This would cause a drastic loss in compression and power. The engine oil would also be allowed to escape around the piston rings, causing a lot of smoke, fouled spark plugs, and potentially burned pistons.
[005] Therefore, a breather hose is fitted from the cylinder head cover to an air cleaner outlet hose such that the blow-by gas is passes through

breather hose into engine. The breather in the IC engine functions as a vent pipe that allows to vent the blow-by gases out of the engine and release the built up pressure in the crankcase. By venting pressure out of the crankcase, an engine's piston rings are allowed to seal tighter against the cylinder walls. This provides better compression and promotes less oil consumption while making more horsepower.
[006] However, the blow-by gas is mixture of heated fuel, air and moisture and when it reaches into the air cleaner outlet hose, encounters with the air from at normal temperature. This leads to the blow-by gas reaching its saturation and condensation of the content of the blow-by gas. Therefore, increasing pressure in the air cleaner outlet hose, may lead to leakages of moist, oil and particles at a connecting portion of the air cleaner outlet hose between the air cleaner outlet hose and a throttle body in an IC engine, while the air intake enters the throttle body.
[007] In existing arts, a sealing is provided between the air cleaner outlet hose and a throttle body to reduce such leakage. However, the sealing provided between the air cleaner outlet hose and the throttle body still suffer from leakages.
[008] The clamping force on the rubber hose may lead to the deformation of hose in some time.
[009] Therefore, there exists need of an air cleaner outlet hose with integrated sealing that efficiently prevents such leakages.
OBJECTIVES OF THE INVENTION
[0010] It is therefore the object of the invention to overcome the aforementioned and other drawbacks existing in prior systems.

[0011] An object of the present invention is to provide air cleaner outlet hose that overcomes the problem of the prior art.
[0012] Another object of the present invention is to provide an air cleaner outlet hose to prevent oil leakage at a connecting portion of the air cleaner outlet hose between the air cleaner outlet hose and a throttle body in an IC engine to prevent oil leakage.
[0013] Another object of the present invention is to provide improved integrated sealing on air cleaner outlet hose to prevent oil leakage at a connecting portion of the air cleaner outlet hose between the air cleaner outlet hose and a throttle body.
[0014] Another object of the present invention is to counter the vibration in at joining area of air cleaner outlet hose and the throttle body due to the loose connection between air cleaner outlet hose and the throttle body.
[0015] Another object of the present invention is to provide an air cleaner outlet hose with integrated sealing with a plurality of angular projections that can receive more clamping force on the air cleaner outlet hose to avoid deformation of the same with time.
[0016] These and other objects and advantages of the present invention will be apparent to those skilled in the art after a consideration of the following detailed description.
SUMMARY OF THE INVENTION
[0017] To attain the above objects, the present invention provides an air cleaner outlet hose that prevents oil leakage at a connecting portion of the air cleaner outlet hose between the air cleaner outlet hose and a throttle body in an IC engine. The IC engine comprises a cylinder head, a cylinder head cover, a breather hose fitted from the cylinder head cover to the air

cleaner outlet hose to by-pass blow-by gases into air intake of the IC engine and the throttle body to control air intake into the IC engine.
[0018] In an aspect, the air cleaner outlet hose comprises an integrated sealing at an inner wall of the connecting portion.
[0019] In an aspect, the integrated sealing comprising a fitting region where the air cleaner outlet hose and the throttle body are press-fitted.
[0020] In an aspect, the integrated sealing comprises a plurality of angular projections in an upward direction. Each of the plurality of angular projections comprising a horizontal surface and a tilted surface. The horizontal surface of the angular projection includes an inward end and an outward end. The tilted surface of the angular projection includes a first end and a second end.
[0021] In an aspect, the first end of the tilted surface conjoins the horizontal surface at the outward end, and the tilted surface extends underneath the horizontal surface at an acute angle.
[0022] The plurality of angular projections lies side by side in a vertical direction on the inner wall of the connecting portion. The integrated sealing covers the fitting region and an additional region above the fitting region (L2).
[0023] Various objects, features, aspects, and advantages of the inventive subject matter will become more apparent from the following detailed description of preferred embodiments.
[0024] It is to be understood that the aspects and embodiments of the disclosure described above may be used in any combination with each

other. Several of the aspects and embodiments may be combined to form a further embodiment of the disclosure.
[0025] The foregoing summary is illustrative only and is not intended to be in any way limiting. In addition to the illustrative aspects, embodiments, and features described above, further aspects, embodiments, and features will become apparent by the following detailed description.
[0026] Various objects, features, aspects, and advantages of the inventive subject matter will become more apparent from the following detailed description of preferred embodiments.
BRIEF DESCRIPTION OF THE DRAWING
[0027] The illustrated embodiments of the subject matter will be best understood by reference to the drawings, wherein like parts are designated by like numerals throughout. The following description is intended only by way of example, and simply illustrates certain selected embodiments of devices, systems, and processes that are consistent with the subject matter as claimed herein, wherein:
[0028] Fig. 1 illustrates an assembly of an air cleaner outlet hose with a breather hose and a throttle body in an IC engine according to an embodiment of the present invention; and
[0029] Fig. 2 illustrates the air cleaner outlet hose comprising an integrated sealing to connect the air cleaner outlet hose and the throttle body, according to an embodiment of the present invention. [0030] The figures depict embodiments of the disclosure for purposes of illustration only. One skilled in the art will readily recognize from the following description that alternative embodiments of the structures and

methods illustrated herein may be employed without departing from the principles of the disclosure described herein.
DETAILED DESCRIPTION OF THE INVENTION
[0031] While the embodiments of the disclosure are subject to various modifications and alternative forms, specific embodiment thereof have been shown by way of example in the figures and will be described below. It should be understood, however, that it is not intended to limit the disclosure to the particular forms disclosed, but on the contrary, the disclosure is to cover all modifications, equivalents, and alterative falling within the scope of the disclosure.
[0032] As used in the description herein and throughout the claims that follow, the meaning of "a," "an," and "the" includes plural reference unless the context clearly dictates otherwise. Also, as used in the description herein, the meaning of "in" includes "in" and "on" unless the context clearly dictates otherwise.
[0033] The terms "comprises", "comprising", or any other variations thereof used in the disclosure, are intended to cover a non-exclusive inclusion, such that a device, system, assembly that comprises a list of components does not include only those components but may include other components not expressly listed or inherent to the system, or assembly, or device. In other words, one or more elements in a system or device proceeded by "comprises... a" does not, without more constraints, preclude the existence of other elements or additional elements in the system, apparatus or device.
[0034] Hereinafter an air cleaner outlet hose (100) to prevent oil leakage will be explained in detail.

[0035] Referring to figure 1, which illustrates an assembly of an air cleaner outlet hose 100 with a breather hose 200 and a throttle body 300 in an IC engine according to an embodiment of the present invention. Blow-by gases from a cylinder head of the IC engine vents out via the breather hose 200. The breather hose 200 supplies blow-by gases to the air cleaner outlet hose 100. Further, air intake occurs from an air cleaner outlet hose 100 into the throttle body 300.
[0036] An integrated sealing [shown in figure-2] is provided between the air cleaner outlet hose 100 and a throttle body 300 to prevent any leakage of oil or liquid particle, etc., at the connecting region 'LI'. In an example of the present invention, integrating the sealing 102 on an inner wall of the connecting region 'LI' of the air cleaner outlet hose 100 aids in cost cutting in production as well as increases functional life of the sealing 102 with the air cleaner outlet hose 100. However, the sealing and the air cleaner outlet hose can be manufactured separately also to assemble the sealing on an inner wall of the connecting region of the air cleaner outlet hose at later stage.
[0037] Referring to figure 2, which illustrates the air cleaner outlet hose 100 comprising an integrated sealing 102 to connect the air cleaner outlet hose and the throttle body 300, according to an embodiment of the present invention.
[0038] Box-lOOa of figure-2 illustrates the inner wall of the air cleaner outlet hose 100 at the connecting portion 'LI'. The inner wall of the connecting portion 'LI' comprises an integrated sealing 102 around axis BB [shown by dotted line].

[0039] Box-lOOb of figure-2 illustrates an enlarged view of a portion of the inner wall of the connecting portion 'LI' as shown in Box-lOOa. The integrated sealing at the inner wall of the connecting portion (LI) comprises a plurality of angular projections 102 in an upward direction. Each of the plurality of angular projections 102 comprising a horizontal surface 1 with an inward end and an outward end, and a tilted surface 2 comprising a first end and a second end.
[0040] The first end of the tilted surface 2 conjoins the horizontal surface 1 at the outward end, and the tilted surface 2 extends underneath the horizontal surface 1 at an acute angle. The plurality of angular projections 102 lies side by side along a vertical direction on the inner wall of the connecting portion 'LI'. The integrated sealing covers the connecting portion LI comprising the fitting region 'L2' and at least an additional region 'L3' at each of an end of the fitting region 'L2'. [0041] The improved structure of integrated sealing efficiently prevents any leakage at the connecting portion where the air cleaner outlet hose 100 connects with the throttle body 300 to supply inlet air into the IC engine.
[0042] In an aspect, the present integrated sealing structure is made of rubber material.
[0043] The present structure of the air cleaner outlet hose counters the vibration in at joining area of air cleaner outlet hose and the throttle body due to the loose connection between air cleaner outlet hose and the throttle body. The integrated sealing with the plurality of angular projections act as a vibration dumping layer.
[0044] The present structure of the air cleaner outlet hose with integrated sealing with the plurality of angular projections define a compressible

region to receive more clamping force on the air cleaner outlet hose to avoid deformation of the outer surface of the air cleaner outlet hose with time.
[0045]
[0046] Each of the appended claims defines a separate invention, which for infringement purposes is recognized as including equivalents to the various elements or limitations specified in the claims. Depending on the context, all references below to the "invention" may in some cases refer to certain specific embodiments only. In other cases, it will be recognized that references to the "invention" will refer to subject matter recited in one or more, but not necessarily all, of the claims
[0047] With respect to the use of substantially any plural and/or singular terms herein, those having skill in the art can translate from the plural to the singular and/or from the singular to the plural as is appropriate to the context and/or application. The various singular/plural permutations may be expressly set forth herein for sake of clarity.
[0048] It will be understood by those within the art that, in general, terms used herein, and especially in the appended claims (e.g., bodies of the appended claims) are generally intended as "open" terms (e.g., the term "including" should be interpreted as "including but not limited to," the term "having" should be interpreted as "having at least," the term "includes" should be interpreted as "includes but is not limited to," etc.). It will be further understood by those within the art that if a specific number of an introduced claim recitation is intended, such an intent will be explicitly recited in the claim, and in the absence of such recitation no such intent is present. For example, as an aid to understanding, the following appended claims may contain usage of the introductory phrases "at least one" and "one

or more" to introduce claim recitations. However, the use of such phrases should not be construed to imply that the introduction of a claim recitation by the indefinite articles, 'a', or "an" limits any particular claim containing such introduced claim recitation to inventions containing only one such recitation, even when the same claim includes the introductory phrases "one or more" or "at least one" and indefinite articles such as "a" or "an" (e.g., "a" and/or "an" should typically be interpreted to mean "at least one" or "one or more"); the same holds true for the use of definite articles used to introduce claim recitations. In addition, even if a specific number of an introduced claim recitation is explicitly recited, those skilled in the art will recognize that such recitation should typically be interpreted to mean at least the recited number (e.g., the bare recitation of "two recitations," without other modifiers, typically means at least two recitations, or two or more recitations).
[0049] The above description does not provide specific details of manufacture or design of the various components. Those of skill in the art are familiar with such details, and unless departures from those techniques are set out, techniques, known, related art or later developed designs and materials should be employed. Those in the art are capable of choosing suitable manufacturing and design details.
[0050] The terminology used herein is for the purpose of describing particular embodiments only and is not intended to be limiting of the present disclosure. It will be appreciated that several of the above-disclosed and other features and functions, or alternatives thereof, may be combined into other systems or applications. Various presently unforeseen or unanticipated alternatives, modifications, variations, or improvements therein may subsequently be made by those skilled in the art without

departing from the scope of the present disclosure as encompassed by the following claims.
[0051] The claims, as originally presented and as they may be amended, encompass variations, alternatives, modifications, improvements, equivalents, and substantial equivalents of the embodiments and teachings disclosed herein, including those that are presently unforeseen or unappreciated, and that, for example, may arise from applicants/patentees and others.
[0052] While various aspects and embodiments have been disclosed herein, other aspects and embodiments will be apparent to those skilled in the art. The various aspects and embodiments disclosed herein are for purposes of illustration and are not intended to be limiting, with the true scope and spirit being indicated by the following claims.

We claim:
1.An air cleaner outlet hose (100) having a connecting portion (LI)
between the air cleaner outlet hose (100) and a throttle body (300) in an IC
engine, the air cleaner outlet hose (100) comprising:
- an integrated sealing at an inner wall of the connecting portion (LI) comprising a fitting region (L2) where the air cleaner outlet hose (100) and the throttle body (300) are press-fitted,
wherein the integrated sealing comprises a plurality of angular projections (102) in an upward direction.
2.The air cleaner outlet hose (100) as claimed in claim 1, wherein each
of the plurality of angular projections (102) comprising a horizontal surface
(1) with an inward end and an outward end, and a tilted surface (2) comprising a first end and a second end, the first end of the tilted surface
(2) conjoins the horizontal surface (1) at the outward end, and the tilted surface (2) extends underneath the horizontal surface (1) at an acute angle,

3.The air cleaner outlet hose (100) as claimed in claim 1, wherein the plurality of angular projections (102) lies side by side along a vertical direction on the inner wall of the connecting portion (LI).
4.The air cleaner outlet hose (100) as claimed in claim 1, wherein the integrated sealing covers the connecting portion (LI) comprising the fitting region (L2) and at least an additional region (L3) at each of an end of the fitting region (L2).
5.The air cleaner outlet hose (100) as claimed in claim 1, wherein the integrated sealing is made of rubber material.