Internal-combustion engines – Charge forming device – Fuel injection system
Patent
1980-09-22
1983-01-18
Lazarus, Ira S.
Internal-combustion engines
Charge forming device
Fuel injection system
123198D, 123DIG11, F02M 3900
Patent
active
043687083
ABSTRACT:
A positioning device for an air valve arranged in the charging air line of a diesel engine, particularly charged by means of a pressure wave-charging device. The air valve or flap is provided with a shutoff valve incorporated into the flow path between an impingement line branching-off from a pressure oil line of the diesel engine and an oil return flow line. The impingement line is connected with an impingement chamber for a positioning piston actuating the air valve or flap. The positioning piston is loaded by a continuously effective force and the shutoff valve is actuated, in order to impinge the positioning piston with oil, in the opening direction of the air valve or flap by a control piston loaded by the pressure in the air charging line against the force of a spring. The shutoff valve interposed between the impingement chamber and the oil return flow line, in the presence of an oil pressure for impinging the positioning piston with pressurized oil, is moved by the charging air pressure in the charging air line out of its open position into its closed position, and the closed shutoff valve, only in the absence of oil pressure for oil pressure relief of the positioning piston, can be controlled by the spring force from its closed position into the open position.
REFERENCES:
patent: 3894523 (1975-07-01), Stumpp
patent: 3930481 (1976-01-01), Eckert
patent: 4015571 (1977-04-01), Stumpp
patent: 4064854 (1977-12-01), Fehrenbach et al.
patent: 4143631 (1979-03-01), Stumpp
patent: 4227502 (1980-10-01), Steinwart et al.
Fried Reinhard
Heller Rudolf
Hubner Heimo
BBC Brown Boveri & Company Limited
Kleeman Werner W.
Lazarus Ira S.
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