Oil cooler bypass valve
First Claim
Patent Images
1. A fluid bypass valve configured to be placed within a bypass passage defined by a component, the bypass valve comprising:
- a valve housing defining an elongated bypass passage communicating with a fluid supply and a fluid return;
a thermally responsive actuator;
a valve element body defining a fluid inlet, a through bore, an exit bore and a valve seat, said valve element body disposed within the bypass passage;
a sliding valve element disposed within the valve element body, the sliding valve element being engageable with the valve seat and the thermally responsive actuator, said sliding valve element having a closed position for preventing oil flow through the elongated bypass passage, and further having an open position for allowing bypass oil fluid from the fluid supply to the fluid return; and
a spring annularly disposed about the sliding valve element, wherein the spring is engaged between said sliding valve element and said valve element body and operative to urge said sliding valve element away said valve seat.
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Accused Products
Abstract
A valve actuating mechanism for a transmission/engine fluid cooler bypass valve of the type in which a responsive element expands to urge a valve member against a valve seat and thereby causes transmission fluid to flow through an oil fluid cooler. A cast valve housing is utilized which is interposed between the cooler and the oil source. The valve actuating mechanism is designed to allow fluid to pass through the valve once the fluid has reached an elevated pressure level.
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Citations
20 Claims
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1. A fluid bypass valve configured to be placed within a bypass passage defined by a component, the bypass valve comprising:
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a valve housing defining an elongated bypass passage communicating with a fluid supply and a fluid return; a thermally responsive actuator; a valve element body defining a fluid inlet, a through bore, an exit bore and a valve seat, said valve element body disposed within the bypass passage; a sliding valve element disposed within the valve element body, the sliding valve element being engageable with the valve seat and the thermally responsive actuator, said sliding valve element having a closed position for preventing oil flow through the elongated bypass passage, and further having an open position for allowing bypass oil fluid from the fluid supply to the fluid return; and a spring annularly disposed about the sliding valve element, wherein the spring is engaged between said sliding valve element and said valve element body and operative to urge said sliding valve element away said valve seat. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13)
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14. A fluid bypass valve configured to be placed between a fluid suppky of a component and a fluid cooler, the bypass valve comprising:
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a valve housing defining an elongated bypass passage communicating with the fluid supply and a fluid return; a return spring; a valve element body defining a through bore and a valve seat and seal disposed on an exterior surface of the valve element body, said seal configured to fluidly seal the elongated bypass passage; a sliding valve element disposed within the valve element body, said sliding valve element defining a valve seal stop and a first outer bearing surface which is configured to engage a first end of the return spring; and a thermally responsive actuator which moves the sliding valve element between an open and closed position, said thermally responsive actuator being coupled to the valve element body. - View Dependent Claims (15, 16)
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17. A fluid bypass valve configured to be placed within a bypass passage defined by a component, the bypass valve comprising:
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a valve housing defining an elongated bypass passage, said bypass passage communicating with a fluid supply and a fluid return; a valve element body disposed within the valve housing, said valve element body defining a through passage, an input port defining a valve seat and an exit port; a sliding valve element disposed within the valve element body, said sliding valve element defined a valve seal stop and a first outer bearing surface which is configured to engage a first end of a spring, said spring being annularly disposed about the sliding valve element, the valve seal stop being engageable with the valve seat having a closed position for preventing oil flow through the elongated bypass passage, and further having an open position for allowing bypass oil fluid from the fluid supply line back to the fluid return line through the through passage; and a thermally responsive actuator coupled to the sliding valve element, said actuator configured to move the sliding valve element between an open and closed position; wherein the spring is engaged between said sliding valve element and said valve element body and is operative to urge said sliding valve element away said first valve seat. - View Dependent Claims (18, 19, 20)
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Specification