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US4887567A Expired / Lapsed US ⏱️ 0.0 years remaining

Connecting arrangement in valve operating system for internal combustion engine

Assignee: Honda Motor Co Ltd
•
Filing: 1988-08-18
•
Granted: 1989-12-19
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Expires: 2008-08-18
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Abstract

Abstract Intake and exhaust rotary valves (10, 10', 20; 110, 110', 120; 210, 210') are separately disposed in intake and exhaust passages (7, 7', 8, 8'; 107, 108) communicating with a combustion chamber (6; 106) in an internal combustion engine (1; 101), respectively, and are adapted to open and close the corresponding intake and exhaust passages. These rotary valves have spherical valve bodies (13, 13', 23; 113, 113', 123; 213, 213'). A valve operating system (30) for rotatively driving the valve bodies interlockingly with the movement of a piston (5; 105) in the internal combustion engine (1; 101) has drive shaft (34, 36; 134; 234) each of which is connected to the valve body through a connecting member (17, 18; 117, 118; 217, 218). In case a plurality of the intake and exhaust rotary valves are mounted, the valve bodies of the intake rotary valves as well as the valve bodies of the exhaust rotary valves are also interconnected through connecting members.

Inventors

  • 👤 Masaaki Matsuura
  • 👤 Masaharu Nakamori
  • 👤 Masahiro Kuroki
  • 👤 Mitsuru Ishikawa

Bibliographic Details

Application Number —
Jurisdiction US
Data Source google_patents
Last Synchronized 2026-10-30 17:53
CPC Classifications
F; F01; F01L; F01L7/00; F01L7/10; F16; F16D; F16D3/00; F16D3/02; F16D3/04; F01L2313/00

Claims Analysis

Total Claims: 5
Claim 1
Independent Claim 143 words
Coupling apparatus for connecting substantially axially aligned members for rotational movement, comprising: a joint element attached to each of said members in mutual facing, interlocking relationship; said joint elements being substantially perpendicularly disposed with respect to each other and each comprising a substantially rectangularly shaped body containing a substantially rectangularly shaped recess, the recess in each said body being greater in dimension than the joint element body received therein whereby limited relative movement in substantially perpendicular directions is permitted between said joint elements; and an engaging member having an engagement hole for reception of said interconnected joint elements, said engagement hole being substantially cruciform in shape and sized to permit said limited relative movement with respect to each said joint element while preventing any substantial angular displacement therebetween, including clearance spaces to permit said limited relative substantially perpendicular movement between said joint elements.
Claim 2
Dependent Claim 143 words
Coupling apparatus for connecting substantially axially aligned members for rotational movement, comprising: a joint element attached to each of said members in mutual facing, interlocking relationship; said joint elements being substantially perpendicularly disposed with respect to each other and each comprising a substantially rectangularly shaped body containing a substantially rectangularly shaped recess, the recess in each said body being greater in dimension than the joint element body received therein whereby limited relative movement in substantially perpendicular directions is permitted between said joint elements; and an engaging member having an engagement hole for reception of said interconnected joint elements, said engagement hole being substantially cruciform in shape and sized to permit said limited relative movement with respect to each said joint element while preventing any substantial angular displacement therebetween, including clearance spaces to permit said limited relative substantially perpendicular movement between said joint elements.
Claim 3
Dependent Claim 26 words
The coupling apparatus according to claim 1 in which said coupled members contain oppositely facing, mutually perpendicularly offset recesses for tight reception of said joint elements.
Claim 4
Dependent Claim 18 words
The coupling apparatus according to claim 2 in which said coupled members each comprise a rotary valve body.
Claim 5
Dependent Claim 24 words
The coupling apparatus according to claim 2 in which said coupled members each comprise a rotary valve body and a drive shaft therefor, respectively.

References Cited (Backward Citations)

US1316011A Cited
GB138904A Cited
US1361236A Cited
US1352953A Cited
US1459035A Cited
US1887081A Cited
FR792678A Cited
US3730161A Cited
US3789627A Cited
JPS5874126A Cited
JPS6275132A Cited

USPTO Annuity & Maintenance Windows

Annuity Stage Window Opens Payment Deadline Surcharge Period Until Estimated Fee Status
3.5 Years (Year 4) 1992-12-18 1993-06-19 1993-12-19 $2000.00 Window Closed / Lapsed
7.5 Years (Year 8) 1996-12-18 1997-06-19 1997-12-19 $3760.00 Window Closed / Lapsed
11.5 Years (Year 12) 2000-12-18 2001-06-19 2001-12-19 $7700.00 Window Closed / Lapsed

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