Internal-combustion engines – Charge forming device – With fuel pump
Patent
1987-02-02
1988-06-28
Miller, Carl Stuart
Internal-combustion engines
Charge forming device
With fuel pump
123179L, 123449, F07M 3900
Patent
active
047532114
ABSTRACT:
An adjusting apparatus for the injection onset of a fuel injection pump includes a spring-loaded adjusting piston which shifts a rotationally adjustable roller ring of a cam drive of an injection pump relatively toward an associated revolving portion in a direction of an early or late injection onset. The adjusting piston defines two control pressure chambers, both of which are acted upon by the supply pressure, of a fuel feed pump which rises as a function of rpm. One chamber can be pressure-relieved via an overpressure valve and the pressure in the other chamber is controlled via a switching valve which is controlled in accordance with temperature. In the control pressure chambers, springs are provided to act upon the adjusting piston and to counteract the pressure in the respective chamber.
REFERENCES:
patent: 2910975 (1959-11-01), Evans
patent: 3147746 (1964-09-01), Hofer
patent: 3486492 (1969-12-01), Lehnerer
patent: 4079719 (1978-03-01), Varcoe
patent: 4333437 (1982-06-01), Lohiver
patent: 4342301 (1982-08-01), Tomita
patent: 4354474 (1982-10-01), Kobayashi
patent: 4557240 (1985-12-01), Sakuranaka
patent: 4593669 (1986-06-01), Igarashi
patent: 4610234 (1986-09-01), Sakuranaka
Greigg Edwin E.
Miller Carl Stuart
Robert & Bosch GmbH
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