A high pressure compressor according to the present disclosure and a refrigerating cycle device to which the high pressure compressor is applied may include a casing having a sealed inner space; drive motor provided in the inner space of the casing; a compression unit provided in the inner space of the casing, and provided with a compression space for compressing refrigerant, and provided with a suction port for guiding refrigerant into the compression space, and provided with a discharge port for guiding refrigerant compressed in the compression space into the inner space of the casing a discharge valve provided in the compression unit to selectively open or close the discharge port according to a difference between a pressure of the inner space of the casing and a pressure of the compression space of the compression unit; a first valve configured to suppress refrigerant discharged from the inner space of the casing from flowing backward into the inner space of the casing; a bypass pipe connected between a discharge side and a suction side of the compression unit based on the compression unit; and a second valve provided at the bypass pipe to selectively open or close the bypass pipe.

In order to further improve the sound damping in a refrigerant compressor comprising a common housing, a screw-type compressor in a common housing has a compressor housing that is formed as part of the common housing with a first sound absorber unit which is arranged in the common housing. The first sound absorber unit is arranged adjacent a housing window, and the sound absorber unit comprises at least one chamber which is located between an inlet opening and an outlet opening and which widens out relative to the inlet opening and to the outlet opening in a direction transverse to a direction of flow.

A high side compressor system includes a compressor housing, motor, and a compression chamber. The compression chamber is disposed within the compressor housing. An accumulator is fluidly coupled to the compressor housing via a pressure-equalization tube. A pressure-equalization valve is disposed in the pressure-equalization tube. The pressure-equalization valve closes access to the pressure-equalization tube responsive to an electrical current being applied to the pressure-equalization valve. The pressure-equalization valve is electrically coupled to a compression mechanism such that interruption of electrical current to the compression mechanism interrupts electrical current to the pressure-equalization valve thereby opening the pressure-equalization valve

To reduce or prevent failures due to contamination, such as control and/or lubrication failure, the compressor according to the present invention includes an oil separator 230 having a separation portion configured to separate lubricating oil OIL from a working fluid by using a centrifugal force, and a storage portion located below the separation portion and configured to store lubricating oil OIL separated by the separation portion. A hat-shaped trap member 260 is disposed between the separation portion and the storage portion. The trap member 260 allows precipitation and trapping of the contamination CON mixed in the lubricating oil OIL by temporarily storing the lubricating oil OIL separated by the separation portion and discharging a supernatant of the lubricating oil OIL into the storage portion.

In a compression unit, an upper compression unit suction tube is connected to an upper suction hole of an upper cylinder, and a lower compression unit suction tube is connected to a lower suction hole of a lower cylinder. In an accumulator shell of an accumulator vessel, an accumulator suction tube, an upper gas-liquid separation tube, and a lower gas-liquid separation tube penetrate a side wall of the accumulator shell, and are fixed by welding to a first through hole, a second through hole, and a third through hole of the accumulator shell, respectively. The upper gas-liquid separation tube is connected to the upper compression unit suction tube via an upper connecting tube outside the accumulator shell. The lower gas-liquid separation tube is connected to the lower compression unit suction tube via a lower connecting tube outside the accumulator shell.

In a compression unit, an upper compression unit suction tube is connected to an upper suction hole of an upper cylinder, and a lower compression unit suction tube is connected to a lower suction hole of a lower cylinder. In an accumulator shell of an accumulator vessel, an accumulator suction tube, an upper gas-liquid separation tube, and a lower gas-liquid separation tube penetrate a side wall of the accumulator shell, and are fixed by welding to a first through hole, a second through hole, and a third through hole of the accumulator shell, respectively. The upper gas-liquid separation tube is connected to the upper compression unit suction tube via an upper connecting tube outside the accumulator shell. The lower gas-liquid separation tube is connected to the lower compression unit suction tube via a lower connecting tube outside the accumulator shell.

A compressor includes: an annular cylinder; a rotation shaft which is rotated by the motor; a piston which revolves along an inner circumferential surface of the cylinder, and forms a cylinder chamber on the inside of the cylinder; a vane which protrudes to the inside of the cylinder chamber from a vane groove provided in the cylinder, and divides the cylinder chamber into an inlet chamber and a compression chamber by abutting against the piston; and an injection hole which injects a liquid refrigerant to the inside of the compression chamber. The center of the injection hole is disposed to be within a fan-like range of which a center angle is equal to or less than 40 toward a side opposite to a connection position between the compressor housing and the inlet unit from a center line of the vane groove in the circumferential direction of the rotation shaft.

A high side compressor system includes a compressor housing, motor, and a compression chamber. The compression chamber is disposed within the compressor housing. An accumulator is fluidly coupled to the compressor housing via a pressure-equalization tube. A pressure-equalization valve is disposed in the pressure-equalization tube. The pressure-equalization valve closes access to the pressure-equalization tube responsive to an electrical current being applied to the pressure-equalization valve. The pressure-equalization valve is electrically coupled to a compression mechanism such that interruption of electrical current to the compression mechanism interrupts electrical current to the pressure-equalization valve thereby opening the pressure-equalization valve.

A compressor of an embodiment includes three suction pipes. A first center of a first suction pipe, a second center of a second suction pipe, and a third center of a third suction pipe are positioned at vertices of a triangle. A first distance between the first center and a center of a compressor main body is smaller than a second distance between the second center and the center of the compressor main body and a third distance between the third center and the center of the compressor main body. The first suction pipe is connected to a first suction port on an uppermost side. A second virtual plane on which a central axis of a main curved pipe part of the second suction pipe is disposed and a third virtual plane on which a central axis of a main curved pipe part of the third suction pipe is disposed are inclined to opposite sides from each other with respect to a first virtual plane on which a central axis of a main curved pipe part of the first suction pipe is disposed.

The present disclosure relates to an air conditioner and a compressor. The compressor includes: a first cylinder assembly, including a first cylinder body and a first sliding vane, a volume control assembly, including a pressure regulator; wherein the pressure regulator is provided with a storage cavity, and the storage cavity is communicated with the variable volume control cavity; wherein the first sliding vane is configured to slide in a reciprocating manner between the first compression cavity and the variable volume control cavity along the first sliding vane groove, to change the volume of the variable volume control cavity; and the refrigerant introduced into the variable volume control cavity flows between the variable volume control cavity and the storage cavity along with a change of the volume of the variable volume control cavity.