Patent US2641432A successfully refreshed from Google Patents.
US3973540A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Timing device for a fuel injection pump
Assignee: Individual
•
Filing: 1974-09-12
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Granted: 1976-08-10
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Expires: 1994-09-12
Abstract
Abstract A device for the adjustment of the injection timing of the injection pump of an automotive diesel engine, wherein the injection pump is actuated by the diesel engine via a clutch comprising two coaxially arranged clutch halves relatively rotatably by means of a vane about an angle determined by end stops.
Inventors
- 👤 Hans List
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-04 18:16
CPC Classifications
F; F02; F02D; F02D1/00; F02D1/16; F02B; F02B3/00; F02B3/06
Claims Analysis
Total Claims: 3
Claim 1
Independent Claim
185 words
A device for the timing of the injection of an injection pump of an automotive diesel engine from a first end position for high engine performance and a minimum fuel consumption at full load into a second end position for a low percentage of noxious gases in the exhaust gas, comprising a pump-driving shaft, a pump camshaft in coaxial relation to same, a clutch consisting of two clutch halves one of which is non-rotatably connected with the pump camshaft and the other with the pump-driving shaft, and means for causing relative rotation of the two clutch halves about a predetermined angle from one end position to the other end position, said device further comprising a forced-lubrication system, a double-action hydraulic working cylinder, a piston slidable in said working cylinder and dividing same into two cylinder chambers, said piston being drivingly connected with said means, one supply line controlled by means of a solenoid valve emerging from each of the cylinder chambers and connected with the forced-lubrication system, and one return line controlled by means of a solenoid valve emerging from each of the cylinder chambers.
Claim 2
Independent Claim
185 words
A device for the timing of the injection of an injection pump of an automotive diesel engine from a first end position for high engine performance and a minimum fuel consumption at full load into a second end position for a low percentage of noxious gases in the exhaust gas, comprising a pump-driving shaft, a pump camshaft in coaxial relation to same, a clutch consisting of two clutch halves one of which is non-rotatably connected with the pump camshaft and the other with the pump-driving shaft, and means for causing relative rotation of the two clutch halves about a predetermined angle from one end position to the other end position, said device further comprising a forced-lubrication system, a double-action hydraulic working cylinder, a piston slidable in said working cylinder and dividing same into two cylinder chambers, said piston being drivingly connected with said means, one supply line controlled by means of a solenoid valve emerging from each of the cylinder chambers and connected with the forced-lubrication system, and one return line controlled by means of a solenoid valve emerging from each of the cylinder chambers.
Claim 3
Dependent Claim
77 words
A device according to claim 1, said means comprising axially slidable socket encompassing the two clutch halves, a number of guide slots arranged on the periphery of said socket, a number of carrier bolts radially protruding from the periphery of each of the two clutch halves and engaging the guide slots of the socket, at least the guide slots for the carrier bolts of one clutch half forming acute angles with the peripheral direction of the socket.
References Cited (Backward Citations)
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Cited
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US3815564A
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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) | 1979-08-10 | 1980-02-09 | 1980-08-10 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1983-08-10 | 1984-02-09 | 1984-08-10 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1987-08-10 | 1988-02-09 | 1988-08-10 | $7700.00 | Window Closed / Lapsed |