Fuel injection apparatus

Details Fuel injection apparatus Fuel injection apparatus

1984-07-27

1986-05-27

Miller, Carl Stuart

Internal-combustion engines

Combustion chamber means having fuel injection only

Using multiple injectors or injections

123179L, 123575, 239584, 239 93, 417382, F02M 4502, F02M 5938

Patent

active

045909040

ABSTRACT:
A fuel injection apparatus having pre-injection and main injection and associated with Diesel engines is disclosed. A high-pressure injection pump delivers a main injection quantity to a main injection nozzle, and a hydraulic pre-injection auxiliary pump is driven by this same pressure pulse. The pre-injection auxiliary pump includes a stepped piston, comprising a pre-injection piston portion and a driving piston portion, and the stepped piston has as an integral component such as a slide pintle control valve located in an extension of its driving piston portion. This control valve opens the passage to the continuing pressure line and to the main injection nozzle only after a predetermined stroke of the stepped piston has been attained.

REFERENCES:
patent: 2173812 (1939-09-01), Bischof
patent: 2173814 (1939-09-01), Bischof
patent: 3131866 (1964-05-01), Cummins
patent: 3391871 (1968-07-01), Fleischer
patent: 3403861 (1968-10-01), Eichmann et al.
patent: 3627208 (1971-12-01), Scott
patent: 4108383 (1978-08-01), Thoma
patent: 4289098 (1981-09-01), Norberg et al.
patent: 4425885 (1984-01-01), Tanaka

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