Hydraulic attenuator for air fuel control pump

Details Hydraulic attenuator for air fuel control pump Hydraulic attenuator for air fuel control pump

F - Mech Eng,Light,Heat,Weapons

02

M

123/145

F02M 39/00 (2006.01)

Patent

CA 1120357

Abstract of the Invention A diaphragm operated, air fuel control system for controlling the rate of fuel flow to an internal combustion engine in response to intake manifold pressure is disclosed wherein the transient response of the diaphragm operator is attenuated by a fuel filed control chamber. An attenuator assembly connected with the control chamber causes fuel to be supplied to the chamber at a rate which is greater than the rate at which fuel may be discharged from the control chamber. In one embodiment the chamber is formed on the side of the diaphragm operator which is opposite to the side to which intake manifold pressure is supplied. In another embodiment the control chamber is formed to receive one end of a plunger valve connected with the diaphragm operator.

341862

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