US3762389A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Rocking piston bearing
Assignee: Motors Liquidation Co
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Filing: 1972-06-26
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Granted: 1973-10-02
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Expires: 1992-06-26
Abstract
Abstract In a preferred embodiment, an engine piston-connecting rod assembly includes rocking bearing means having two sets of cooperating bearing surfaces which alternate in accepting compression loads while providing for separation of each set of surfaces when unloaded to permit the admission of lubricant. The position of the load transfer point between one set of bearing surfaces and the other is selected so that a load transfer is timed to occur closely following the occurrence of the cyclic peak load point for each cycle, with the result that average lubricant film thickness in the bearing is maximized.
Inventors
- 👤 J Malina
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-25 05:38
CPC Classifications
F; F16; F16C; F16C17/00; F16C17/26; F16C33/00; F16C33/02; F16C33/04; F16C33/06; F16C33/10; F16J; F16J1/00; F16J1/10; F16J1/14; F16J1/24
Claims Analysis
Total Claims: 6
Claim 1
Independent Claim
183 words
In a reciprocating piston machine having a rotatable crank and an axially reciprocable piston interconnected by a connecting rod, an oscillatory bearing connection between said piston and said connecting rod and subject to a cyclic peak load, said bearing connection having first and second sets of opposed cooperating bearing surfaces arranged such that, under compressive loads, the opposed surfaces of said first set are in load transmitting engagement while the opposed surfaces of said second set are separated when said bearing connection is angularly positioned on one side of a predetermined load transfer point, and the opposed surfaces of said second set are in load transmitting engagement while the opposed surfaces of said first set are separated when said bearing connection is angularly rotated to the other side of said load transfer point, and means permitting the admission of lubricant between said opposed bearing surfaces when they are separated, said load transfer point being selected such that a load transfer from one set of opposed bearing surfaces to the other occurs during each cycle closely following the occurrence of said cyclic peak load.
Claim 2
Dependent Claim
183 words
In a reciprocating piston machine having a rotatable crank and an axially reciprocable piston interconnected by a connecting rod, an oscillatory bearing connection between said piston and said connecting rod and subject to a cyclic peak load, said bearing connection having first and second sets of opposed cooperating bearing surfaces arranged such that, under compressive loads, the opposed surfaces of said first set are in load transmitting engagement while the opposed surfaces of said second set are separated when said bearing connection is angularly positioned on one side of a predetermined load transfer point, and the opposed surfaces of said second set are in load transmitting engagement while the opposed surfaces of said first set are separated when said bearing connection is angularly rotated to the other side of said load transfer point, and means permitting the admission of lubricant between said opposed bearing surfaces when they are separated, said load transfer point being selected such that a load transfer from one set of opposed bearing surfaces to the other occurs during each cycle closely following the occurrence of said cyclic peak load.
Claim 3
Dependent Claim
177 words
In a two-stroke cycle reciprocating Piston machine having a rotatable crank and an axially reciprocable piston interconnected by a connecting rod, an oscillatory bearing connection between said piston and said connecting rod and subject to a cyclic peak load, said bearing connection having first and second sets of opposed cooperating bearing surfaces arranged such that the transmission of compressive loads through said bearing connection occurs solely through said first set of opposed surfaces during the portion of each cycle when said bearing connection is angularly positioned on one side of a predetermined load transfer point and solely through said second set of opposed surfaces during the portion of each cycle when said bearing connection is angularly rotated to the other side of said load transfer point, and means permitting the admission of lubricant between said opposed bearing surfaces during their unloaded periods of operation, said load transfer point being selected such that said cyclic peak load occurs during the terminal part of the loaded portion of each cycle of one of said sets of opposed bearing surfaces.
Claim 4
Dependent Claim
177 words
In a two-stroke cycle reciprocating Piston machine having a rotatable crank and an axially reciprocable piston interconnected by a connecting rod, an oscillatory bearing connection between said piston and said connecting rod and subject to a cyclic peak load, said bearing connection having first and second sets of opposed cooperating bearing surfaces arranged such that the transmission of compressive loads through said bearing connection occurs solely through said first set of opposed surfaces during the portion of each cycle when said bearing connection is angularly positioned on one side of a predetermined load transfer point and solely through said second set of opposed surfaces during the portion of each cycle when said bearing connection is angularly rotated to the other side of said load transfer point, and means permitting the admission of lubricant between said opposed bearing surfaces during their unloaded periods of operation, said load transfer point being selected such that said cyclic peak load occurs during the terminal part of the loaded portion of each cycle of one of said sets of opposed bearing surfaces.
Claim 5
Dependent Claim
188 words
In a two-stroke cycle internal combustion engine having a rotatable crank and an axially reciprocable piston interconnected by a connecting rod, an oscillatory bearing connection between said piston and said connecting rod, and subject to cyclic peak combustion loads significantly greater than the bearing connection loads during the remainder of each cycle, said bearing connection having first and second sets of opposed cooperating bearing surfaces arranged such that the transmission of loads through said bearing connection occurs solely through said first set of opposed surfaces during the portion of each cycle when said bearing connection is angularly positioned on one side of a predetermined load transfer point, and solely through said second set of opposed surfaces during the portion of each cycle when said bearing connection is angularly rotated to the other side of said load transfer point, and means to supply lubricant to said opposed bearing surfaces during their unloaded periods of operation, said load transfer point being selected such that said cyclic peak combustion load occurs during the terminal part of the loaded portion of each cycle of one of said sets of opposed bearing surfaces.
Claim 6
Dependent Claim
188 words
In a two-stroke cycle internal combustion engine having a rotatable crank and an axially reciprocable piston interconnected by a connecting rod, an oscillatory bearing connection between said piston and said connecting rod, and subject to cyclic peak combustion loads significantly greater than the bearing connection loads during the remainder of each cycle, said bearing connection having first and second sets of opposed cooperating bearing surfaces arranged such that the transmission of loads through said bearing connection occurs solely through said first set of opposed surfaces during the portion of each cycle when said bearing connection is angularly positioned on one side of a predetermined load transfer point, and solely through said second set of opposed surfaces during the portion of each cycle when said bearing connection is angularly rotated to the other side of said load transfer point, and means to supply lubricant to said opposed bearing surfaces during their unloaded periods of operation, said load transfer point being selected such that said cyclic peak combustion load occurs during the terminal part of the loaded portion of each cycle of one of said sets of opposed bearing surfaces.
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USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1976-10-01 | 1977-04-02 | 1977-10-02 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1980-10-01 | 1981-04-02 | 1981-10-02 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1984-10-01 | 1985-04-02 | 1985-10-02 | $7700.00 | Window Closed / Lapsed |