F - Mech Eng,Light,Heat,Weapons – 02 – M
Patent
F - Mech Eng,Light,Heat,Weapons
02
M
123/115
F02M 27/00 (2006.01) F02D 35/00 (2006.01) F02D 41/02 (2006.01) F02M 31/18 (2006.01)
Patent
CA 1063459
VAPOR PRESSURE REGULATOR FOR A VAPORIZED LIQUID FUEL SYSTEM ABSTRACT OF THE DISCLOSURE A vapor reservoir adapted for use in conjunction with a vaporized liquid fuel system for an internal combus- tion engine is disclosed. The reservoir includes a movable wall member cooperative with means defining a housing to establish a variable volume vapor storage space. The movable wall member is referenced to the pressure of the air immediately upstream from the intake to the air and fuel metering portion of the engine. The housing includes a generally downwardly depending condensate collecting and return section. Vapor delivery conduits are positioned within the housing and support a thermally floating finned member operative to disperse vapor delivered to the vapor reservoir. The movable wall member is provided with position sensing means operative to provide an input to an electrical circuit for controlling the rate of vapor delivery to main- tain a predetermined quantity of vapor within the vapor space. The electronic circuitry is operative to control a liquid fuel delivery means to provide quantities of liquid fuel to a liquid fuel vaporizer for changing the vapor storage space of the vapor reservoir. The electrical circuit is operative to vary a threshold voltage in response to the sensed position of the movable wall member. The variable threshold voltage is compared to a saw tooth wave train to generate a variable duration voltage pulse in order to selectively control the coarse liquid fuel delivery means. - 1 -
272243
Giardini Dante S.
Hamburg Douglas R.
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