摘要:
The air-conditioning heat exchanger includes a plurality of Peltier devices, a plurality of first heat transfer members, a plurality of second heat transfer members, an air-conditioning passage and a heat exchange medium passage. The air-conditioning passage has therein the Peltier devices and the first heat transfer members. The air-conditioning passage allows air to be air-conditioned to flow therethrough. The air-conditioning passage has a plurality of divided passages at least at positions that are downstream of upstream ends of the first heat transfer members with respect to an air flowing direction in which the air flows through the air-conditioning passage. The Peltier device in each divided passage is controlled separately from the Peltier device in other divided passage. The heat exchange medium passage has therein the second heat transfer members and allows fluid to flow through the heat exchange medium passage.
摘要:
A variable displacement compressor includes a housing, a rotary shaft, a bearing, a seal member, a shaft seal chamber, a discharge refrigerant passage and a partition. The partition is provided in the shaft seal chamber for partitioning the shaft seal chamber into a first seal chamber to which the discharge refrigerant passage is opened and a second seal chamber part of the periphery of which is formed by the bearing and the seal member. The partition is provided with a first guide passage through which refrigerant containing lubricating oil flowed from the discharge refrigerant passage into the first seal chamber is substantially all supplied to the seal member of the second seal chamber.
摘要:
A compressor includes a housing, a rotary shaft, a bearing, a seal, a shaft seal chamber, a lug plate, a thrust bearing, a first passage for connecting the crank chamber to the shaft seal chamber, a second passage provided in the housing for connecting the crank chamber to the shaft seal chamber, a third passage provided in the rotary shaft for connecting the shaft seal chamber to a discharge pressure region of the compressor, a partition provided in the shaft seal chamber for dividing the shaft seal chamber into a seal-side chamber and a bearing-side chamber and a clearance formed through the partition for drawing the refrigerant gas from the seal-side chamber of the shaft seal chamber to the bearing-side chamber of the shaft seal chamber, the clearance being formed radially inward of the inner circumferential surface of the shaft seal chamber.
摘要:
A refrigerant compressor (10) includes a compression mechanism, a discharge passage (49), and an oil separator (50). The compression mechanism compresses a refrigerant gas containing a lubricant oil. The refrigerant gas that has been compressed by the compression mechanism flows through the discharge passage. The oil separator (50) is arranged in the discharge passage and separates the lubricant oil from the refrigerant gas flowing in the discharge passage. The oil separator has a rotator (52) that causes the refrigerant gas to flow around the axis (M) of the rotator and a circumferential wall (51A) that encompasses the rotator and extends along the axis of the rotator. The rotator and the circumferential wall define a separation zone in between. The lubricant oil is separated from the refrigerant gas by the flow of the refrigerant gas around the rotator in the separation zone. The circumferential wall has an oil outlet that allows the separated lubricant oil to flow to the exterior of the oil separator. The oil separator has an inlet port (54A) that allows the refrigerant gas to flow into the separation zone and an outlet port (52C) that allows the refrigerant gas to flow out of the separation zone. The rotator is arranged between the inlet port and the outlet port. The inlet port and the outlet port are arranged so that an inlet direction of the refrigerant gas flowing through the inlet port is substantially parallel with an outlet direction of the refrigerant gas flowing through the outlet port.
摘要:
The check valve (10) includes a valve housing (20,22), a valve body (24) and an urging member (25). The valve housing has a peripheral wall and a valve seat (20g). The peripheral wall has an opening (22b) therethrough for fluid communication. The opening is located more downstream than the valve seat. The end of the opening on the side of the valve seat is spaced at a predetermined length (a) in a direction in which the valve body is spaced away from the valve seat. A first throttle (26) is formed in a space between an inner peripheral surface (22e) of the valve housing and an outer peripheral surface (24f) of the valve body until the valve body is slid in the direction for the predetermined length from the state in which the valve body is seated on the valve seat.
摘要:
A by-pass device in a variable displacement compressor has a by-pass passage, a valve body and a deformable separator. The by-pass passage interconnects a discharge pressure region with a crank chamber for releasing refrigerant from the discharge pressure region to the crank chamber. The valve body is arranged in the by-pass passage for opening and closing the by-pass passage. The deformable separator separates a back pressure region from the by-pass passage without sliding. The valve body is urged from a side of an opened position where the valve body is spaced from a valve seat toward a side of a closed position where the valve body contacts with the valve seat by pressure applied from the back pressure region to the separator. The valve body is moved from the closed position to the opened position by deforming the deformable separator.
摘要:
A compressor includes a suction chamber, a working chamber, a discharge chamber, a discharge valve and a thermal insulating member. A low-pressure compressible fluid resides in the suction chamber. The low-pressure compressible fluid in the suction chamber is introduced into the working chamber and is compressed to a predetermined pressure. The compressed compressible fluid in the working chamber is discharged into the discharge chamber. The discharge valve is interposed between the working chamber and the discharge chamber. The thermal insulating member is disposed in the discharge chamber. The thermal insulating member has an opening restricting portion for restricting the maximum opening degree of the discharge valve.
摘要:
A refrigeration cycle apparatus has a compressor (11), a radiator (12), an expansion device (13), an evaporator (14), and a variable-speed mechanism (51). When a rotary shaft (37) of the compressor (11) is rotated, the compressor (11) increases the pressure of refrigerant. The radiator (12) cools refrigerant the pressure of which has been increased by the compressor (11). The expansion device (13) generates power using the decompression and expansion and transmits the power to the rotary shaft (37). The evaporator (14) heats refrigerant that has been decompressed and expanded by the expansion device (13). The variable-speed mechanism (51) is capable of changing the discharge rate of the expansion device (13) per rotation of the rotary shaft (37). This permits the expansion device (13) to increase the amount of recovered power.
摘要:
A variable displacement compressor optionally varies displacement based upon pressure in a crank chamber for adjusting the pressure in the crank chamber by varying an opening degree of a passage that interconnects the crank chamber and one of relatively high and low pressure regions of the refrigeration cycle. A control valve of the variable displacement compressor has a valve seat and a valve. The valve seat has a seat surface for adjusting the opening degree of the passage. The valve has a valve surface for adjusting the opening degree of the passage. At least one of the seat surface and the valve surface is made of a material with relatively high hardness.