Injection valve arrangement

Details Injection valve arrangement Injection valve arrangement

1997-01-29

1998-06-02

Wolfe, Willis R.

Internal-combustion engines

Combustion chamber means having fuel injection only

Using multiple injectors or injections

123 25C, F02B 300

Patent

active

057586187

ABSTRACT:
An injection valve arrangement for injecting an auxiliary medium into a combustion chamber of a cylinder of an internal combustion engine in order to reduce the concentration of noxious substances in the exhaust gases of the engine comprises a valve body bounding a first chamber into which the pressure medium is continuously fed through a feed duct and an elongated valve member for controlling the feeding of the auxiliary medium from the first chamber into the combustion chamber of the cylinder and being spring-loaded toward a closed position, in which it prevents the injection of the additional medium. The valve body also bounds a second chamber into which the auxiliary medium is fed, and the pressure prevailing in the second chamber urges the valve member toward the closed position. A control valve controls the pressure in the second chamber so that when the control valve opens, the pressure in the second chamber falls and the valve member moves to an open position allowing injection of the auxiliary medium.

REFERENCES:
patent: 3610529 (1971-10-01), Huber
patent: 5170751 (1992-12-01), Tosa et al.
patent: 5529024 (1996-06-01), Wirbeleit et al.
patent: 5647316 (1997-07-01), Hellen et al.

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