Patent US4267805A successfully refreshed from Google Patents.
US4267805A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Internal combustion engine
Assignee: Motorenfabrik Hatz GmbH and Co KG
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Filing: 1979-05-29
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Granted: 1981-05-19
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Expires: 1999-05-29
Abstract
Abstract An internal combustion engine comprising a flywheel mounted on a crankshaft and an aggregate housing which surrounds the flywheel and is mounted on the crank housing by vibration-damping buffer elements extending tangentially of the flywheel, which aggregate housing rotatably supports a drive shaft for an aggregate driven by the engine.
Inventors
- 👤 Johann Schmuck
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-04 23:11
CPC Classifications
F; F16; F16F; F16F15/00; F16F15/10; F16F15/12; F16F15/121; F16F15/124; Y; Y10; Y10T; Y10T74/00; Y10T74/21; Y10T74/2121; Y10T74/2131
Claims Analysis
Total Claims: 8
Claim 1
Independent Claim
98 words
In an internal combustion engine comprising a crankshaft rotatably supported in an engine housing, a flywheel mounted on said crankshaft, an aggregate housing surrounding said flywheel and mounted on said engine housing by fastening means, a drive shaft for an aggregate rotatably journaled in said aggregate housing, and means for drivingly connecting said flywheel to said drive shaft, the improvement comprising wherein said fastening means comprises damping means for damping vibrations between said internal combustion engine and said aggregate housing, which damping means comprise at least one elongate elastic buffer element extending tangentially with respect to said flywheel.
Claim 2
Dependent Claim
98 words
In an internal combustion engine comprising a crankshaft rotatably supported in an engine housing, a flywheel mounted on said crankshaft, an aggregate housing surrounding said flywheel and mounted on said engine housing by fastening means, a drive shaft for an aggregate rotatably journaled in said aggregate housing, and means for drivingly connecting said flywheel to said drive shaft, the improvement comprising wherein said fastening means comprises damping means for damping vibrations between said internal combustion engine and said aggregate housing, which damping means comprise at least one elongate elastic buffer element extending tangentially with respect to said flywheel.
Claim 3
Dependent Claim
54 words
The internal combustion engine according to claim 1, wherein said buffer element comprises a first rigid sleeve, an elastic sleeve concentrically disposed within and bonded to the radially inner surface of said first rigid sleeve, and a second rigid sleeve concentrically disposed within and bonded to the radially inner surface of said elastic sleeve.
Claim 4
Dependent Claim
26 words
The internal combustion engine according to claim 2, wherein said first and second sleeves are made of metal and said elastic sleeve is made of rubber.
Claim 5
Dependent Claim
55 words
The internal combustion engine according to claim 2, wherein said second rigid sleeve is hollow and wherein said damping means includes a fork-like bearing block for said buffer element, said buffer element being supported between the legs of said fork-like bearing block by a holding element extending between said legs through said second rigid sleeve.
Claim 6
Dependent Claim
66 words
The internal combustion engine according to claim 4, wherein said bearing block is mounted to said engine housing by at least one mounting screw and has at least one centering pin received in a recess provided in said engine housing, and wherein said buffer element is secured to said aggregate housing by at least one fastening screw provided on the outer surface of said buffer element.
Claim 7
Dependent Claim
33 words
The internal combustion engine according to claim 5, wherein said fastening screw is substantially parallel to the axis of said flywheel and is substantially perpendicular to the axis of the associated buffer element.
Claim 8
Dependent Claim
23 words
The internal combustion engine according to claim 4, including four buffer elements positioned at circumferentially spaced intervals about the periphery of said flywheel.
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) | 1984-05-18 | 1984-11-17 | 1985-05-19 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1988-05-18 | 1988-11-17 | 1989-05-19 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1992-05-18 | 1992-11-17 | 1993-05-19 | $7700.00 | Window Closed / Lapsed |