F - Mech Eng,Light,Heat,Weapons – 02 – M
Patent
F - Mech Eng,Light,Heat,Weapons
02
M
F02M 1/14 (2006.01) F02M 7/127 (2006.01)
Patent
CA 2187499
The air/fuel mixture ratio supplied to an internal combustion engine is controlled by an electronic compensation system to vary the air/fuel ratio to compensate for changes in air density and/or in engine temperature. An electronic control unit receives signals from sensors that monitor engine temperature and atmospheric pressure, and in accordance with the signals received varies the pressure in a float chamber within a carburettor supplying fuel to the engine. The control system uses the under pressure in the carburettor venturi as a source of vacuum and also includes a pressure generator for providing a source of pressurized air. The pressure generator may be driven by pressure fluctuations in the engine crankcase.
Cette invention concerne un système électronique de compensation servant à modifier le mélange air-carburant introduit dans un moteur à combustion interne, en fonction des variations de la pression atmosphérique et/ou de la température du moteur. Le système comporte des capteurs de température et de pression atmosphérique dont les signaux servant à réguler la pression dans la cuve à flotteur du carburateur alimentant le moteur. Le système exploite la pression négative engendrée dans le venturi du carburateur et fait également appel à un compresseur d'air pouvant être asservi aux fluctuations de la pression dans le carter du moteur.
Bombardier Inc.
Smart & Biggar
LandOfFree
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