Rotary valve system for motors and the like having improved sealing means
AssigneeAlto Automotive, Inc.
InventorTony E. Vallejos
Life of this patent
Estimating the term…
Abstract
A rotary valve system for a motor and the like includes a flow conduit and rotary valve means interposed in the flow conduit. Intermittent sealing means are provided for preventing flow through the flow conduit, comprising a sealing surface intermittently positionable in stationary, sealing relationship across the conduit. Means are also provided for moving the sealing surface into such stationary sealing relationship with the flow conduit, and out of sealing relationship with the flow conduit in a manner correlating with the operation of the rotary valve means, to facilitate sealing as the valve operates.
Claims19
In a motor having a combustion chamber, fuel inlet and outlet means communicating with said combustion chamber through a single, common port coaxially located with said combustion chamber, a shaft, and rotary valve means operated in registry with said shaft, controlling flow through said inlet and outlet means and port, the improvement comprising, in combination:
- sliding valve means, positioned to control flow through the port between said rotary valve means and combustion chamber, comprising first and second sliding plates positioned together in facing, overlaping relationship and free of spring-biased pressure together, said first and second sliding plates each defining an aperture, said plates being movable between a first sliding position in which said apertures overlap to define a flow path through said plates and said port, and a second sliding position in which said apertures are spaced from each other to prevent flow through said plates and port;
- arm means attached to said sliding plates, and cam means on said shaft positioned in engaging relation with said arm means, and adapted to move said plates between first and second sliding positions and to allow said plates to remain stationary in said second sliding position, whereby rotation of said shaft reciprocates said plates between the first and second sliding positions in a manner correlating with the opening and closing of said rotary valve.
A valve system for a motor and the like which includes sliding valve means positioned to control flow through a fluid flow passage and rotary valve means also controlling flow through said fluid flow passage, said sliding valve system comprising first and second sliding plates positioned together in facing, overlapping relationship and free of spring-biased pressure together, said first and second sliding plates each defining an aperture, said plates being movable between a first sliding position in which said apertures overlap to define a flow path through said plates and a second sliding position in which said apertures are spaced from each other to prevent flow through said plates;
- said plates being enclosed about their edges in a sealing cavity defined in a housing member, the width of said sealing cavity being essentially from 0.002 to 0.005 inch greater than the combined thickness of said plates, said housing member defining a single central aperture, the central portions of said sliding plates being exposed through said aperture to the exterior of said housing member;
- arm means attached to said sliding plates;
- and means for reciprocating said arm means to cause reciprocation of said plates between the first and second sliding positions and means for correlating the operation of said rotary valve and sliding valve whereby both are simultaneously open and both are simultaneously closed during operation of the motor.
A valve system for a motor and the like which includes sliding valve means positioned to control flow through a single fluid flow passage, said sliding valve means comprising first and second sliding plates positioned together in facing, overlapping relationship, said first and second sliding plates each defining an aperture, said plates being movable between a first sliding position in which said apertures overlap to define a flow path through said plates, and a second sliding position in which said apertures are spaced from each other to prevent flow through said plates;
- arm means attached to said sliding plates, and means for reciprocating said arm means to cause reciprocation of said plates between the first and second sliding positions and to also allow said plates to remain stationary in said second sliding position, and further including means for intermittently providing pressurized gas between said sliding plates to facilitate said motion by separating said plates with pressurized gas as they move from the second to the first position, and to stop said provision of gas when the plates remain stationary in their second sliding position.
In a valve system for a motor and the like for controlling flow through a conduit, which valve comprises first and second sliding plates positioned together in facing, overlapping relationship, said first and second sliding plates each defining an aperture, said plates being movable between a first sliding position in which said apertures overlap together to define a flow path through said plates and a second sliding position in which said apertures are spaced from each other to prevent flow through said plates;
- said sliding plates being enclosed about their edges in a sealing cavity defined in a housing member, the width of said sealing cavity being essentially from 0.002 to 0.005 inch greater than the combined thickness of said plates, said housing member defining a central aperture, the central portions of said sliding plates being exposed through said aperture to the exterior of said housing member;
- arm means attached to said sliding plates, and means for reciprocating said arm means to reciprocate the plates between the first and second sliding positions, said arm means being connected to said first and second sliding plates at a central portion thereof, said arm means connecting with the sliding plates through the central aperture.
Dependencies are inferred from the claim text.