US3734259A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Liquid cooled clutches
Assignee: Ji Case Europe Ltd
•
Filing: 1971-07-02
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Granted: 1973-05-22
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Expires: 1991-07-02
Abstract
Abstract An engine/clutch combination has an engine driven flywheel on which is mounted a clutch mechanism for disengagably connecting the flywheel to a shaft. A clutch housing, the lower portion of which forms a sump containing oil, envelops the flywheel and clutch mechanism and has a trough within it forming a well which accommodates the lower portions of said flywheel and clutch mechanism. An aperture is formed in the trough for allowing oil to flow from the sump to an annular groove formed in that face of the flywheel remote from the clutch, from which it flows via a passage in the flywheel remote from the clutch, mechanism and thence to the trough. The oil is flung out of the trough by the rotation of the flywheel and clutch mechanism, collected by a gutter in the upper part of the clutch housing and made available for recirculation.
Inventors
- 👤 H Ashfield
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-06 20:23
CPC Classifications
B; B60; B60K; B60K17/00; B60K17/02
Claims Analysis
Total Claims: 20
Claim 1
Independent Claim
149 words
An engine/clutch combination comprising an engine flywheel, a shaft co-axial with the flywheel, clutch mechanism for disengagably connecting the flywheel to the shaft, a clutch housing enveloping the flywheel and the clutch mechanism and acting at its base as a sump, a trough within the housing forming a well accommodating the lower portions of the flywheel and The clutch mechanism and surrounded by oil in the sump, means defining an aperture in the trough adjacent that face of the flywheel remote from the clutch mechanism, an annular groove in said face of the flywheel for receiving oil flowing through the aperture from the sump, at least one passage in the flywheel for delivering oil from the groove to the clutch mechanism, and means for collecting oil flung from the trough by the flywheel and the clutch mechanism and for directing said flung oil toward said flywheel and clutch mechanism.
Claim 2
Dependent Claim
149 words
An engine/clutch combination comprising an engine flywheel, a shaft co-axial with the flywheel, clutch mechanism for disengagably connecting the flywheel to the shaft, a clutch housing enveloping the flywheel and the clutch mechanism and acting at its base as a sump, a trough within the housing forming a well accommodating the lower portions of the flywheel and The clutch mechanism and surrounded by oil in the sump, means defining an aperture in the trough adjacent that face of the flywheel remote from the clutch mechanism, an annular groove in said face of the flywheel for receiving oil flowing through the aperture from the sump, at least one passage in the flywheel for delivering oil from the groove to the clutch mechanism, and means for collecting oil flung from the trough by the flywheel and the clutch mechanism and for directing said flung oil toward said flywheel and clutch mechanism.
Claim 3
Dependent Claim
24 words
An engine/clutch combination according to claim 1, wherein said last-named means comprises at least one gutter within the upper part of the clutch housing.
Claim 4
Dependent Claim
17 words
An engine/clutch combination according to claim 2, wherein the aperture has a lip overhanging the annular groove.
Claim 5
Dependent Claim
31 words
An engine/clutch combination according to claim 3, wherein the gutter has closed ends and a pipe leads from that end remote from the engine to a point immediately above the lip.
Claim 6
Dependent Claim
31 words
An engine/clutch combination according to claim 2, wherein the gutter has closed ends and a pipe leading from that end remote from the engine discharges oil directly into the annular groove.
Claim 7
Dependent Claim
31 words
An engine/clutch combination according to claim 2, wherein the ends of the gutter extend beyond the ends of the trough and at least one of the first mentioned ends is open.
Claim 8
Dependent Claim
33 words
An engine/clutch combination according to claim 1, wherein the clutch mechanism includes at least one clutch plate mounted on the shaft and frictionally engagable between an axially movable pressure plate and the flywheel.
Claim 9
Dependent Claim
43 words
An engine/clutch combination according to claim 7, wherein a sleeve surrounding the shaft has mounted on it at least one clutch plate which is frictionally engagable by axial movement of another pressure plate when the clutch plate on the shaft is already engaged.
Claim 10
Dependent Claim
43 words
An engine/clutch combination according to claim 8, wherein the pressure plate associated with the clutch plate on the shaft has a conical internal surface on that side remote from the flywheel to assist in delivering oil to the clutch plate on the sleeve.
Claim 11
Dependent Claim
16 words
An engine/clutch combination according to claim 8, wherein a multi-plate clutch is provided on the sleeve.
Claim 12
Dependent Claim
17 words
An engine/clutch combination according to claim 1, wherein a single clutch plate is provided on the shaft.
Claim 13
Dependent Claim
15 words
An engine/clutch combination according to claim 1, wherein each clutch plate has so-called ''''paper'''' linings.
Claim 14
Dependent Claim
15 words
An engine/clutch combination according to claim 1, wherein each clutch plate has sintered bronze linings.
Claim 15
Dependent Claim
19 words
The engine/clutch combination defined in claim 1, wherein said aperture is a notch in the wall of said trough.
Claim 16
Dependent Claim
32 words
The engine/clutch combination defined in claim 1, wherein a lip is provided on the trough at said aperture over-hanging the annular groove and said flung oil is first directed to said lip.
Claim 17
Dependent Claim
26 words
The engine/clutch combination defined in claim 15, wherein said last-named means includes a pipe having an open end disposed for discharging collected oil onto said lip.
Claim 18
Dependent Claim
28 words
The engine/clutch combination defined in claim 1, wherein said last-named means includes a pipe having an open end disposed for discharging collected oil directly into said annular groove.
Claim 19
Dependent Claim
153 words
An engine/clutch combination comprising an engine flywheel, a shaft co-axial with the flywheel, clutch mechanism disengagably connecting the flywheel to the shaft, a clutch housing enveloping the flywheel and the clutch mechanism and acting at its base as a sump, a trough within the housing forming a well accommodating the lower portions of the flywheel and the clutch mechanism and surrounded by oil in the sump, means defining an aperture in the trough and a lip at said aperture extending toward that face of the flywheel remote from the clutch mechanism, an annular groove in said face of the flywheel for receiving oil flowing through the aperture and from the lip, at least one passage in the flywheel for delivering oil from the groove to the cluTch mechanism, and means for collecting oil flung from the trough by the flywheel and the clutch mechanism 13 and directing the flung oil to said lip.
Claim 20
Dependent Claim
153 words
An engine/clutch combination comprising an engine flywheel, a shaft co-axial with the flywheel, clutch mechanism disengagably connecting the flywheel to the shaft, a clutch housing enveloping the flywheel and the clutch mechanism and acting at its base as a sump, a trough within the housing forming a well accommodating the lower portions of the flywheel and the clutch mechanism and surrounded by oil in the sump, means defining an aperture in the trough and a lip at said aperture extending toward that face of the flywheel remote from the clutch mechanism, an annular groove in said face of the flywheel for receiving oil flowing through the aperture and from the lip, at least one passage in the flywheel for delivering oil from the groove to the cluTch mechanism, and means for collecting oil flung from the trough by the flywheel and the clutch mechanism 13 and directing the flung oil to said lip.
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) | 1976-05-21 | 1976-11-20 | 1977-05-22 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1980-05-21 | 1980-11-20 | 1981-05-22 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1984-05-21 | 1984-11-20 | 1985-05-22 | $7700.00 | Window Closed / Lapsed |