US4836156A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Timing transmission device for an internal combustion engine
Assignee: Honda Motor Co Ltd
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Filing: 1987-11-17
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Granted: 1989-06-06
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Expires: 2007-11-17
Abstract
Abstract In order to prevent inordinate thermally-induced backlash between the drive and driven gears of the timing transmission of an internal combustion engine, an idler gear between the drive and driven gears is rotatably carried by a support plate having one end connected to one of the engine crankshaft or camshaft and its other end connected to the engine body by a connection adapted to accommodate relative thermal expansion between the support plate and the engine body.
Inventors
- 👤 Takashi Inagaki
- 👤 Kouji Okazaki
- 👤 Tsugio Ikeda
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-03 13:44
CPC Classifications
F; F02; F02B; F02B75/00; F02B75/16; F02B75/18; F02B75/20; F02B61/00; F02B61/02; F02B67/00; F02B67/04; F16; F16H; F16H3/00; F16H3/02; F16H3/08; F16H3/087; F16H3/089; F01; F01P; F01P5/00; F01P5/10; F02B75/02; F02B2075/022; F02B2075/027; F02B2075/1804; F02B2075/1816; F02B2275/00; F02B2275/18; F02F; F02F1/00; F02F1/24; F02F2001/244; F02F2001/245; Y; Y10; Y10T; Y10T74/00; Y10T74/13; Y10T74/131; Y10T74/134; Y10T74/137; Y10T74/20; Y10T74/20576; Y10T74/20582; Y10T74/20882
Claims Analysis
Total Claims: 7
Claim 1
Independent Claim
98 words
An internal combustion engine comprising: an engine body; a crankshaft rotatably supported on said engine body; a camshaft rotatably supported on said engine body in spaced, parallel relation to said crankshaft; a drive gear on said crankshaft; a driven gear on said camshaft; a support plate pivotably mounted at one end to one of said crankshaft and said camshaft; the other end of said support plate being loosely secured to said engine body to accommodate thermal exspansion thereof; and an idler gear rotatably mounted on said support plate for drivingly connecting said drive gear to said driven gear.
Claim 2
Dependent Claim
98 words
An internal combustion engine comprising: an engine body; a crankshaft rotatably supported on said engine body; a camshaft rotatably supported on said engine body in spaced, parallel relation to said crankshaft; a drive gear on said crankshaft; a driven gear on said camshaft; a support plate pivotably mounted at one end to one of said crankshaft and said camshaft; the other end of said support plate being loosely secured to said engine body to accommodate thermal exspansion thereof; and an idler gear rotatably mounted on said support plate for drivingly connecting said drive gear to said driven gear.
Claim 3
Dependent Claim
44 words
The organization according to claim 1 including connecting means for securing said support plate other end to said engine body, said connecting means including means to accommodate relative movement in a direction perpendicular to said shafts between said support plate and said engine body.
Claim 4
Dependent Claim
39 words
The organization according to claim 2 in which said connecting means comprises an opening in said support plate; and a connecting pin including a shaft spacedly received in said opening and an end threadedly connected to said engine body.
Claim 5
Dependent Claim
20 words
The organization according to claim 3 including resilient spacer means between said connecting pin shaft and said support plate opening.
Claim 6
Dependent Claim
43 words
The organization according to claim 1 in which said engine body includes a cylinder bore and a cam-gear drive chamber and said supporting plate is secured to said engine body on a partition wall separating said cylinder bore from said cam-gear drive chamber.
Claim 7
Dependent Claim
30 words
The organization according to claim 1 in which said support plate includes boss means projecting from the surface thereof, and said idler gear being rotatably mounted on said boss means.
References Cited (Backward Citations)
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1992-06-05 | 1992-12-05 | 1993-06-06 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1996-06-05 | 1996-12-05 | 1997-06-06 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 2000-06-05 | 2000-12-05 | 2001-06-06 | $7700.00 | Window Closed / Lapsed |