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US 12,565,941 B2Granted
Valve
AssigneeKitz Corporation
InventorsMasazumi Funato, Mitsuru Hosokawa, Tetsuya Watanabe, Osamu Watanabe, Hisashi Shimizu
Life of this patent
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Abstract
A valve (10) in accordance with an embodiment of the present invention includes a body (1) having a space in which a stem (3) and a ball (4) are housed, wherein an inner lid body (60) fixing the ball (4) in the space liquid-tightly partitions the space into a part in which the stem (3) is housed and a part in which the ball (4) is housed.
Claims12
A valve comprising:
- a body constituting a flow path of a fluid, the body having a plurality of first openings for distributing the fluid and a second opening that opens in a direction intersecting with a direction in which the plurality of first openings face and that allows a valve element to pass therethrough;
- the valve element being placed in the body via the second opening and allowing the flow path of the fluid to be opened and closed;
- a stem being connected to the valve element and extending outside the second opening;
- a bonnet sealing the second opening in such a manner that the stem is operable;
- and
- an inner lid body partitioning a space in the body into a space on a side of the bonnet and a space on a side of the valve element, in such a manner that the stem is operable and in a liquid-tight or air-tight manner, the inner lid body being provided in the body independently of the bonnet,
- the inner lid body being provided with a through hole through which the stem passes,
- the valve further comprising:
- a shaft seal for sealing between an inner circumference of the through hole of the inner lid body and the stem;
- and
- an outer circumferential seal for sealing between an outer circumferential surface of the inner lid body and an inner circumferential surface of the body,
- the body further having a valve element housing section that houses the valve element, and a stem housing section that houses the stem,
- the stem housing section having, at a lower end part thereof, a communication port that communicates with a part of the valve element housing section,
- the stem housing section having the second opening at an upper end part of the stem housing section,
- an inner diameter of the second opening and an inner diameter of an intermediate part that is sandwiched between the lower end part and the upper end part of the stem housing section being larger than an inner diameter of the communication port.
12 more elements
Dependencies are inferred from the claim text.