Dash pot device
AssigneeAisin Seiki Kabushiki Kaisha
InventorsYoshinari Takakura, Kazuhiko Kitamura
Life of this patent
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Abstract
A dash pot device for application to a deceleration control system for delaying a return action to the engine idle speed position of a carburetor throttle valve for automobile engines. The device includes a body member having a partition wall dividing an interior of the body member into a diaphragm chamber and an air chamber, a diaphragm disposed within the diaphragm chamber, an air filter positioned within the air chamber, a shaft fastened to the diaphragm, a pinhole type orifice passage installed in the partition wall, and a check valve located in the partition wall and oriented parallel to the orifice passage.
Claims7
A dash pot device for delaying a return action of a carburetor throttle valve for automobile engines, comprising:
- a body member having a partition wall dividing an interior of said body member into a diaphragm chamber and an air chamber;
- a diaphragm disposed within said diaphragm chamber and movably mounted therein;
- a shaft having one end fastened to said diaphragm and an end opposite said one end connected with said throttle valve;
- said partition wall having a pinhole type orifice passage formed therein so as to establish fluid communication between said air chamber and said diaphragm chamber;
- a check valve installed in said partition wall in parallel with said orifice passage so as to permit communication only in one direction from said air chamber to said diaphragm chamber;
- a cap member for closing said air chamber and having an air passage formed therein;
- air filter means disposed within said air chamber, positioned between said air passage, said check valve and said orifice passage, and secured by said cap member;
- and
- a sintered metal filter positioned in said orifice passage at a diaphragm chamber side thereof.
Dependencies are inferred from the claim text.