Timing control system for fuel injection pump

Details Timing control system for fuel injection pump Timing control system for fuel injection pump

1991-09-04

1992-06-23

Miller, Carl Stuart

Internal-combustion engines

Charge forming device

With fuel pump

123450, 417462, F02M 3900

Patent

active

051233932

ABSTRACT:
A rotary distributor fuel injection pump having a timing piston for controlling the fuel injection timing in accordance with opposed fuel pressures in advance and back pressure chambers at opposite ends of the piston, a restricted passage for supplying fuel at a restricted rate to the back pressure chamber, a pressure relief valve for limiting the back pressure, a dump valve for dumping the back pressure to advance the timing for starting and a rotary inlet metering valve having a bleed port connected to the back pressure chamber and a helical metering edge which cooperates with the bleed port to control the bleed rate and therefore the timing in relation to engine load to provide a light load advance or light load retard.

REFERENCES:
patent: 3394688 (1968-07-01), Roosa
patent: 3433159 (1969-03-01), Kemp
patent: 3439624 (1969-04-01), Glikin
patent: 3447520 (1969-06-01), Drori
patent: 3552366 (1971-11-01), Kemp
patent: 4037573 (1977-07-01), Swift
patent: 4050432 (1977-09-01), Davis et al.
patent: 4050433 (1977-09-01), Tokashiki
patent: 4074667 (1978-02-01), Skinner
patent: 4079719 (1978-03-01), Varcoe
patent: 4080109 (1978-03-01), Green
patent: 4116186 (1978-09-01), Drori
patent: 4125104 (1978-11-01), Stein
patent: 4138981 (1979-02-01), Green
patent: 4432327 (1984-02-01), Salzgeber
patent: 4453522 (1984-06-01), Salzgeber

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