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US 5,547,344 AGranted
Fluid compressor with selector valve
AssigneeKabushiki Kaisha Toshiba
InventorsAkihiko Sugiyama, Hideaki Tsuchiyama, Toshihiko Futami, Hisataka Kato, Takao Hoshi
Life of this patent
Estimating the term…
Abstract
A fluid compressor comprising a closed casing, compression mechanism provided in the casing for compressing an uncompressed low-pressure fluid and discharging a compressed high-pressure fluid into an inside space of the casing, and a selector valve attached to the casing and including a valve disk which is rotatable in the casing so as to change the passage of the high-pressure fluid flowing out from the inside space of the casing to an outside space of the casing and to switch the passage of the low-pressure fluid flowing from the outside of the casing into the selector valve to communicate with the compression mechanism.
Claims25
A fluid compressor comprising:
- a closed casing;
- compression means provided in the casing for compressing an uncompressed low-pressure fluid and discharging a compressed high-pressure fluid into an inside space of the casing;
- and
- a selector valve including,
- a valve base attached to the casing in a manner such that one surface of the valve base is exposed to an outside region of the casing and that an other surface of the valve base is situated in the casing, and having circumferentially arranged three ports penetrating the valve base and opening in the one and the other surface of the valve base,
- a valve disk rotatably mounted on the valve base in a manner such that one surface of the valve disk faces the other surface of the valve base, and having a communication passage adapted to select two adjacent ports of said three ports in said valve, and to make the selected two ports communicate with each other when the valve disk rotates through a predetermined angle, and a through hole penetrating the valve disk from the one surface thereof to an other surface thereof, whereby a third, non-selected of said ports opens into the casing when the valve disk rotates through a predetermined angle,
- a pipe for the uncompressed low-pressure fluid, the pipe connecting one of the three ports of the valve base and the compression means so that the uncompressed low-pressure fluid having flowed from the outside region of the casing into the selector valve and passed through the communication passage of the valve disk is introduced into the compression means, and
- drive means for rotating the valve disk so as to change a high-pressure fluid passage of the compressed high-pressure fluid flowing out from the inside space of the casing to the outside region of the casing and to switch a low-pressure fluid passage of the uncompressed low-pressure fluid flowing from the outside region of the casing into the selector valve to communicate with the compression means.
5 more elements
A fluid compressor comprising:
- a closed casing;
- compression means provided in the casing for compressing an uncompressed low-pressure fluid and discharging a compressed high-pressure fluid into an inside space of the casing;
- and
- a selector valve including,
- a valve base attached to the casing in a manner such that one surface of the valve base is exposed to an outside region of the casing and that an other surface of the valve base is situated in the casing, and having circumferentially arranged four ports penetrating the valve base and opening in the one and the other surfaces of the valve base,
- a first valve disk rotatably mounted on the valve base in a manner such that one surface of the first valve disk faces the other surface of the valve base, and having a communication passage adapted to select two adjacent ports of said four ports in said valve base, and to make the selected two ports communicate with each other when the first valve disk rotates through a predetermined angle, and first and second through hole penetrating the first valve disk from the one surface thereof to the other, whereby two non-selected ports of the four ports open to an other surface the first valve disk when the valve disk rotates through a predetermined angle,
- a second valve disk rotatably mounted adjacent to the first valve disk in a manner such that one surface of the second valve disk faces the other surface of the first valve disk, and having a communication hole means penetrating the second valve disk from the one surface thereof to an other surface thereof, and adapted to select one through hole of said first and second through holes in said first valve disk, and to make the selected through holes open into the inside space of the casing when the second valve disk rotates through a predetermined angle, and
- a pipe for the uncompressed low-pressure fluid, the pipe connecting one of the four ports of the valve base and the compression means so that the uncompressed low-pressure fluid having flowed from the outside region of the casing into the selector valve and passed through the communication passage of the first valve disk is introduced into the compression means.
5 more elements
Dependencies are inferred from the claim text.