Societe Industrielle De Brevets Et D'etudes S.i.b.e.

Deutsche Vergaser Gmbh & Co Kommanditgesellschaft

Wilfried Bockelmann

Hans Grozinger

Peter Ulrich Wobky

Georg Faltermeier

A carburetor has an operator operable butterfly valve and an auxiliary throttle located upstream of the butterfly valve. The auxiliary throttle is urged toward closure by temperature sensitive thermostatic means and is urged toward opening by the airflow drawn by the engine. A pneumatic element subjected to the pressure downstream of the butterfly valve opens the auxiliary throttle to a predetermined extent immediately after cranking. A pneumatic device responsive to the depression downstream of the butterfly valve urges the auxiliary throttle toward closure when the butterfly valve is abruptly opened while the engine is cold. The action of that pneumatic device is of short duration, and consequently the auxiliary throttle returns to its partially open position as acceleration proceeds.

Carburetor for internal combustion engine

A control installation for the dosing or proportioning of a secondary air quantity for the improvement of combustion in internal combustion engines, or the afterburning of the exhaust gases of internal combustion engines, including an auxiliary arrangement which is responsive to an emergency signal for effecting the prompt shutting-off of the secondary air. The emergency signal may be initiated in response to a failure in the ignition voltage of the internal combustion engine; an increase in the hydrocarbon content of the exhaust gases; a disparity between the position of the mixture dosing element and the engine rotational speed; the exceeding of a limiting temperature in the exhaust gas manifold; or the exceeding of a limiting temperature in the afterburner.

Growing community of inventors

Buttgen, Germany

Wilfried Bockelmann