EP0473261A2
Expired / Lapsed
EP
⏱️ 0.0 years remaining
Pressure regulating valve
Assignee: Eneos Corp
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Filing: 1991-06-27
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Granted: —
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Expires: 2011-06-27
Abstract
Abstract A pressure regulating valve arranged to operate upon increase of pressure in a fluid passage is disclosed. It comprises a valve hole (18) having opposite ends, one of the ends facing the fluid passage (16), and a valve body (10) for normally closing the valve hole at the other end thereof. The valve body has an arcuate configuration and is elastically deformable. When the pressure in the passage is increased due to an increase of flow resistance, the valve body is deformed by the increased pressure to open the valve hole which continues to open until the pressure lowers to a level where the elastic force in the valve body prevails over the pressure.
Inventors
- 👤 Hisashi Yano
- 👤 Junsuke Yabumoto
- 👤 Akiharu Kitada
Bibliographic Details
Application Number
—
Jurisdiction
EP
Data Source
google_patents
Last Synchronized
2026-10-26 18:04
CPC Classifications
G; G05; G05D; G05D16/00; G05D16/04; G05D16/06; G05D16/0611; G05D16/0613; F; F16; F16K; F16K17/00; F01; F01M; F01M11/00; F01M11/03; F01M1/00; F01M1/10; F01M2001/1007; F01M2001/1014; F01M2001/105; F01M2001/1092
Claims Analysis
Total Claims: 32
Claim 1
Independent Claim
56 words
A pressure regulating valve adapted to operate upon increase of pressure in a fluid passage comprising a valve hole having opposite ends, one of said ends facing the fluid passage, and a valve body for normally closing said valve hole at the other end thereof, said valve body having an arcuate configuration and being elastically deformable.
Claim 2
Dependent Claim
51 words
A pressure regulating valve as claimed in claim 1, wherein the fluid passage is defined between an inner pipe and an outer pipe, and wherein said valve hole is formed through the wall of said inner pipe and said valve body is fitted on the inner surface of said inner pipe.
Claim 3
Dependent Claim
61 words
A pressure regulating valve as claimed in claim 1, wherein the fluid passage is defined within an inner pipe which is surrounded by a spaced-apart outer pipe to define an additional passage therebetween, and wherein said valve hole in formed through the wall of said inner pipe and said valve body is fitted on the outer surface of said inner pipe.
Claim 4
Dependent Claim
85 words
A pressure regulating valve as claimed in claim 1, wherein the fluid passage comprises an alternatively used first and second passages, the first passage being defined between an inner pipe and an outer pipe while the second passage is defined within said inner pipe, wherein said valve hole is formed in plural at different axial positions through the wall of said inner pipe, and wherein said valve body comprises first and second bodies fitted on the inner and outer surfaces, respectively, of said inner pipe.
Claim 5
Dependent Claim
56 words
A pressure regulating valve as claimed in claim 1, wherein said valve body comprises a stationarily secured main portion and at least one movable end portion, said valve hole being closed by said end portion, and wherein a pressure at which the pressure regulating valve operates is adjusted by changing a length of said end portion.
Claim 6
Dependent Claim
42 words
A pressure regulating valve as claimed in claim 1, wherein said valve body is substantially uniform along an entire length thereof, and wherein a pressure at which the pressure regulating valve operates is adjusted by changing the length of said valve body.
Claim 7
Dependent Claim
29 words
A pressure regulating valve as claimed in claim 1, wherein a pressure at which the pressure regulating valve operates is adjusted by changing an elasticity of said valve body.
Claim 8
Dependent Claim
28 words
A pressure regulating valve as claimed in claim 7, wherein the elasticity of said valve body is determined by a material of which said valve body is formed.
Claim 9
Dependent Claim
25 words
A pressure regulating valve as claimed in claim 7, wherein the elasticity of said valve body is determined by a thickness of said valve body.
Claim 10
Dependent Claim
35 words
A pressure regulating valve as claimed in claim 1, wherein one of said valve hole and said valve body includes sealing means for providing a liquid-tight seal of said valve hole by said valve body.
Claim 11
Dependent Claim
31 words
A pressure regulating valve as claimed in claim 10, wherein said sealing means comprises a hemispherical projection on said valve body, said projection being adapted to fit in said valve hole.
Claim 12
Dependent Claim
34 words
A pressure regulating valve as claimed in claim 10, wherein said sealing means comprises a projection of hemispherical-based shape having a flat top end, said projection being adapted to fit in said valve hole.
Claim 13
Dependent Claim
47 words
A pressure regulating valve as claimed in claim 1, wherein the fluid passage is defined by inner and outer pipes, and wherein said valve hole is formed through the wall of said inner pipe and said valve body is fitted on the surface of said inner pipe.
Claim 14
Dependent Claim
29 words
A pressure regulating valve as claimed in claim 13, further comprising a groove formed in the surface of said inner pipe, said valve body being fitted in said groove.
Claim 15
Dependent Claim
28 words
A pressure regulating valve as claimed in claim 14, wherein said groove has a shallow portion and a deep portion for enhancing the retention of said valve body.
Claim 16
Dependent Claim
103 words
A pressure regulating valve for use in a fluid passage defined by inner and outer pipes and adapted to open upon increase of pressure in the fluid passage, the pressure regulating valve comprising: a valve hole formed through the wall of the inner pipe; and a valve body having an arcuate configuration and formed of elastically deformable material, said valve body being fitted on the surface of the inner pipe at a side opposite to the fluid passage to normally close said valve hole, and said valve body being deformed by an increased pressure in the fluid passage to open said valve hole.
Claim 17
Dependent Claim
36 words
A pressure regulating valve as claimed in claim 16, wherein the fluid passage is defined between the inner and outer pipes, and wherein said valve body is fitted on the inner surface of the inner pipe.
Claim 18
Dependent Claim
34 words
A pressure regulating valve as claimed in claim 16, wherein the fluid passage is defined within the inner pipe, and wherein said valve body is fitted on the outer surface of the inner pipe.
Claim 19
Dependent Claim
41 words
A pressure regulating valve as claimed in claim 16, further comprising a groove formed on the surface of the inner pipe opposite to the fluid passage, and wherein at least a portion of said valve body is fitted in said groove.
Claim 20
Dependent Claim
29 words
A pressure regulating valve as claimed in claim 19, wherein said groove has an arcuate configuration having an angular extent less than the angular extent of said valve body.
Claim 21
Dependent Claim
58 words
A pressure regulating valve as claimed in claim 20, wherein said valve body comprises a main portion stationarily held in said groove and a pair of opposite end portions extending beyond said groove for closing said valve hole, said end portions being movable with a junction between said main portion and said end portions acting as a fulcrum.
Claim 22
Dependent Claim
29 words
A pressure regulating valve as claimed in claim 21, wherein a pressure at which said valve hole is opened is adjusted by changing a length of said end portion.
Claim 23
Dependent Claim
42 words
A pressure regulating valve as claimed in claim 16, wherein said valve body is substantially uniform along an entire length thereof, and wherein a pressure at which the pressure regulating valve operates is adjusted by changing the length of said valve body.
Claim 24
Dependent Claim
29 words
A pressure regulating valve as claimed in claim 16, wherein a pressure at which the pressure regulating valve operates is adjusted by changing an elasticity of said valve body.
Claim 25
Dependent Claim
140 words
A pressure regulating valve for use in an oil filter and adapted to open for providing a bypass passage for an oil flow, the oil filter including a housing and a cylindrical filter unit having defined therein a hollow space connected to a discharge opening of the housing, the pressure regulating valve comprising: a central projection formed on the upper end of the filter unit and having a ring-shaped side wall and a bottom wall; a valve hole formed through said side wall of said central projection and communicating with the hollow space; and an arcuate valve body fitted on the inner surface of said side wall to normally close said valve hole, said valve body being formed of elastically deformable material so that an increased pressure of the oil flow deforms said valve body to open said valve hole.
Claim 26
Dependent Claim
32 words
A pressure regulating valve as claimed in claim 25, further comprising a groove formed on the inner surface of said side wall, and wherein said valve body is fitted in said groove.
Claim 27
Dependent Claim
37 words
A pressure regulating valve as claimed in claim 25, further comprising sealing means on said valve body adapted to press-contact with the inner surface of said side wall for providing a liquid-tight seal of said valve hole.
Claim 28
Dependent Claim
30 words
A pressure regulating valve as claimed in claim 27, wherein said sealing means comprises a projection attached to the end portion of said valve body and formed of flexible material.
Claim 29
Dependent Claim
175 words
A pressure regulating valve for use in an oil filter and adapted to open for providing a bypass passage for an oil flow, the oil filter including a housing, a cylindrical first separator unit for removing solid contaminants, a second separator unit for removing gaseous contaminants and disposed within the first separator unit, a mount block to which the housing is attached, an inlet passage formed in the mount block for supplying the oil into the housing and an outlet passage in the mount block for discharging an filtered oil from the housing, the pressure regulating valve comprises: a communicating passage formed in the mount block to extend between the inlet and outlet passages; a valve hole defined by the end of said communicating passage facing the outlet passage; and an arcuate valve body fitted on the surface defining the outlet passage to normally close said valve hole, said valve body being formed of elastically deformable material so that an increased pressure of the oil flow deforms said valve body to open said valve hole.
Claim 30
Dependent Claim
32 words
A pressure regulating valve as claimed in claim 29, further comprising a groove formed on the inner surface of said side wall, and wherein said valve body is fitted in said groove.
Claim 31
Dependent Claim
37 words
A pressure regulating valve as claimed in claim 29, further comprising sealing means on said valve body adapted to press-contact with the inner surface of said side wall for providing a liquid-tight seal of said valve hole.
Claim 32
Dependent Claim
30 words
A pressure regulating valve as claimed in claim 31, wherein said sealing means comprises a projection attached to the end portion of said valve body and formed of flexible material.
References Cited (Backward Citations)
No citation records indexed.
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