US3804201A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Oil rate regulator for internal combustion engine tightness member
Assignee: Fiat Auto SpA
•
Filing: 1972-02-18
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Granted: 1974-04-16
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Expires: 1992-02-18
Abstract
Abstract The tightness problem in internal combustion engines is usually solved by film between the apical portion of the segments and the chamber walls. The device disclosed herein is controlled by temperature sensitive means, so as to increase the rate of flow of the oil pump when the engine is cold, a condition which is particularly susceptible of causing damages due to cold wear.
Inventors
- 👤 P Rombi
- 👤 Alfonso N D
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-03 09:58
CPC Classifications
F; F01; F01M; F01M3/00; F01M3/02; F02; F02B; F02B53/00; F02B2053/005; F02B75/00; F02B75/02; F02B2075/022; F02B2075/025
Claims Analysis
Total Claims: 6
Claim 1
Independent Claim
123 words
A device regulating the rate of flow of lubricating oil to the sliding tightness members of the combustion chamber of an internal combustion engine, said device comprising in combination with said engine: supply means for supplying oil to said members at a rate of flow which is a function of at least one of the parameters comprising the rate of rotation of the engine and the engine load; temperature sensing means for sensing the engine temperature; and override means coupled to said supply means, said override means being responsive to said engine temperature determined by said temperature sensing means for increasing the rate of flow of said supply means over that determined by said parameters when said temperature is below a preselected value.
Claim 2
Independent Claim
123 words
A device regulating the rate of flow of lubricating oil to the sliding tightness members of the combustion chamber of an internal combustion engine, said device comprising in combination with said engine: supply means for supplying oil to said members at a rate of flow which is a function of at least one of the parameters comprising the rate of rotation of the engine and the engine load; temperature sensing means for sensing the engine temperature; and override means coupled to said supply means, said override means being responsive to said engine temperature determined by said temperature sensing means for increasing the rate of flow of said supply means over that determined by said parameters when said temperature is below a preselected value.
Claim 3
Dependent Claim
32 words
A device as claimed in claim 1, wherein said temperature -sensitive means are members which are automatically controlled by a thermostatic capsule which is sensitive to said working temperature of the engine.
Claim 4
Dependent Claim
30 words
A device as claimed in claim 1, wherein said supplying means is a pump and said temperature-sensitive means act thereon in the sense of increasing the rate of flow thereof.
Claim 5
Dependent Claim
89 words
A device as claimed in claim 3, wherein said pump is equipped with a rate of flow regulating device connected to said temperature-sensitive means through a leverage defining said override means which acts upon a control in said device in the sense of increasing the rate of flow delivered by said pump when said temperature is below a pre-selected value, said leverage leaving said control free to be actuated as a function of said parameters in the sense of varying the rate of flow as delivered by said pump.
Claim 6
Dependent Claim
18 words
A device as claimed in claim 1, wherein said supplying means introduces oil into the engine intake duct.
References Cited (Backward Citations)
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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) | 1977-04-15 | 1977-10-15 | 1978-04-16 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1981-04-15 | 1981-10-15 | 1982-04-16 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1985-04-15 | 1985-10-15 | 1986-04-16 | $7700.00 | Window Closed / Lapsed |