Valve apparatus
First Claim
1. A valve apparatus, comprising:
- a valve body;
a seat member that is fixed to the valve body and defines a bleed chamber;
an oil supply port that supplies oil to the bleed chamber;
a movable valve that is slidably received in the valve body, wherein;
the movable valve is displaceable based on a pressure in the bleed chamber; and
the movable valve blockades the oil supply port in a state, where the movable valve contacts the seat member; and
a pilot communicating member that provides communication between the oil supply port and the bleed chamber in the state, where the movable valve contacts the seat member, wherein the pilot communicating member includes a slight clearance changing member that increases a degree of the communication when a temperature decreases, and decreases the degree of the communication when the temperature increases.
1 Assignment
0 Petitions
Accused Products
Abstract
A valve apparatus includes a valve body, a seat member, an oil supply port, a movable valve, and a pilot communicating member. The seat member is fixed to the valve body and defines a bleed chamber. The oil supply port supplies oil to the bleed chamber. The movable valve is slidably received in the valve body, wherein the movable valve is displaceable based on a pressure in the bleed chamber, and the movable valve blockades the oil supply port in a state, where the movable valve contacts the seat member. The pilot communicating member provides communication between the oil supply port and the bleed chamber in the state, where the movable valve contacts the seat member. The pilot communicating member includes a slight clearance changing member that increases a degree of the communication when a temperature decreases, and decreases the degree of the communication when the temperature increases.
11 Citations
5 Claims
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1. A valve apparatus, comprising:
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a valve body;
a seat member that is fixed to the valve body and defines a bleed chamber;
an oil supply port that supplies oil to the bleed chamber;
a movable valve that is slidably received in the valve body, wherein;
the movable valve is displaceable based on a pressure in the bleed chamber; and
the movable valve blockades the oil supply port in a state, where the movable valve contacts the seat member; and
a pilot communicating member that provides communication between the oil supply port and the bleed chamber in the state, where the movable valve contacts the seat member, wherein the pilot communicating member includes a slight clearance changing member that increases a degree of the communication when a temperature decreases, and decreases the degree of the communication when the temperature increases. - View Dependent Claims (2, 3, 4, 5)
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Specification