Internal-combustion engines – Charge forming device – Crankcase vapor used with combustible mixture
Patent
1996-04-17
1997-12-30
Wolfe, Willis R.
Internal-combustion engines
Charge forming device
Crankcase vapor used with combustible mixture
25112907, 606052, F02M 2507
Patent
active
057018740
ABSTRACT:
A control valve for the recycling of exhaust gas from an exhaust gas channel to an air inlet channel of the engine, wherein a valve member of the valve opens and closes a valve opening between the exhaust gas channel and the air inlet channel. An electromagnetic control unit acts on the valve member to open the valve and a spring biasses the valve to a closed state. The valve member has a closure portion for closing the valve and is formed with a balancing section spaced from the closure portion and formed with a cross-sectional area equal to that of the closure portion so that the air pressure in the inlet channel applies equal and opposite forces on the balancing section and the closure portion whereby the valve is balanced and not subject to pressure variations in the air inlet channel, such as due to turbocharging.
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patent: 5511531 (1996-04-01), Cook et al.
Blank Helmut
Sari Osman
Pierburg AG
Wolfe Willis R.
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