Apparatus for ascertaining an operating state of an injection pu

Details Apparatus for ascertaining an operating state of an injection pu Apparatus for ascertaining an operating state of an injection pu

1994-09-19

1996-07-09

Miller, Carl S.

Internal-combustion engines

Charge forming device

Fuel injection system

123506, 123425, 73119A, F02M 3704

Patent

active

055334776

ABSTRACT:
An internal combustion engine, in particular a Diesel engine, includes an injection pump with a filling ramp and a supply ramp of a cam ring, cam disk or cam shaft, pump pistons traveling on the filling and supply ramps, and a magnet valve controlling the injection pump and having a closure defining a supply onset. An apparatus for ascertaining at least one actual operating state of the injection pump includes a structure-borne-sound transducer ascertaining at least one actual operating state.

REFERENCES:
patent: 4331117 (1982-05-01), Ginsburgh
patent: 4788960 (1988-12-01), Oshizawa
patent: 4884549 (1989-12-01), Kelly
patent: 5063903 (1991-11-01), Wahl
patent: 5195492 (1993-03-01), Gronenberg
patent: 5205262 (1993-04-01), Anton
Patent Abstracts of Japan, vol. 14583, Dec. 26, 1990 & JP-890071802 (DIESEL) Mar. 27, 1989.
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Patent Abstracts of Japan, vol. 12409, Oct. 28, 1988; & JP-860295866 (HONDA) Dec. 12, 1986.
Patent Abstracts of Japan, vol. 6083, May 21, 1982; & JP-800094428 (HITACHI) Jul. 9, 1980.
Patent Abstracts of Japan, vol. 7071, Mar. 24, 1983; & JP-810097045 (hitachi) Jun. 2, 1981.

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