Fluid control valve
First Claim
1. A fluid control valve that is configured to control a fluid from an upstream side flow channel and is configured to flow out the fluid to a downstream side flow channel, comprisinga valve body that is arranged within a valve chest, and that moves through a predetermined space in the valve chest without making contact with a fixed support member that has a surrounding surface that surrounds a side surface of the valve body, and that is arranged on a valve seat arranged in the valve chest in a detachable manner,an actuator that is configured to bias the valve body in a direction of opening or closing the valve,a valve body return spring that is configured to bias the valve body in a direction of closing or opening the valve and that is arranged in contact with the fixed support member and is arranged in contact with the valve body, anda tilt restraining spring that is configured to bias the valve body in a direction of resolving a tilt of the valve body to the direction of opening or closing the valve and that is arranged in contact with the fixed support member and is arranged in contact with the valve body.
1 Assignment
0 Petitions
Accused Products
Abstract
An object of this invention is both to prevent contamination of a fluid passing a fluid control valve and to prevent a tilt of a valve body in a moving direction and vibration of the valve body. The fluid control valve comprises a valve body that is arranged on an inner surface of a valve chest through a predetermined space in the valve chest and that is arranged on a valve seat arranged in the valve chest in a detachable manner, an actuator that biases the valve body in a direction of opening the valve, a valve body return spring that biases the valve body in a direction of closing the valve, and a tilt restraining spring that biases the valve body in a direction of resolving a tilt of the valve body to an open/close direction.
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Citations
9 Claims
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1. A fluid control valve that is configured to control a fluid from an upstream side flow channel and is configured to flow out the fluid to a downstream side flow channel, comprising
a valve body that is arranged within a valve chest, and that moves through a predetermined space in the valve chest without making contact with a fixed support member that has a surrounding surface that surrounds a side surface of the valve body, and that is arranged on a valve seat arranged in the valve chest in a detachable manner, an actuator that is configured to bias the valve body in a direction of opening or closing the valve, a valve body return spring that is configured to bias the valve body in a direction of closing or opening the valve and that is arranged in contact with the fixed support member and is arranged in contact with the valve body, and a tilt restraining spring that is configured to bias the valve body in a direction of resolving a tilt of the valve body to the direction of opening or closing the valve and that is arranged in contact with the fixed support member and is arranged in contact with the valve body.
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5. A fluid control valve that is configured to control a fluid from an upstream side flow channel and is configured to flow out the fluid to a downstream side flow channel, comprising
a valve body that is arranged within a valve chest, and that moves through a predetermined space in the valve chest without making contact with a fixed support member that has a surrounding surface that surrounds a side surface of the valve body, and that is arranged on a valve seat arranged in the valve chest in a detachable manner, an actuator that biases the valve body in a direction of closing the valve, a valve body return spring that biases the valve body in a direction of opening the valve and that is arranged in contact with the fixed support member and is arranged in contact with the valve body, and a tilt restraining spring that biases the valve body in a direction of resolving a tilt of the valve body to the direction of opening or closing the valve, and that is arranged in contact with the fixed support member and is arranged in contact with the valve body.
Specification