摘要:
Each suction port 43 of a cylinder block 11 has a narrow passage 50 located at a top dead center side and a wide passage 51 located at a bottom dead center side. A suction communication passage 45 of a rotary valve 41 passes by a first succeeding end 50b of the narrow passage 50 before passing by a second succeeding end 51b of the wide passage 51. A high-pressure groove 47 of a residual gas bypass groove 46 faces only a narrow passage 50 of a suction port 43A that corresponds to a high-pressure side compression chamber 26 when in communication with the suction port 43A. A width Tc between the first succeeding end 50b and a second preceding end 51a of the wide passage 51 in the rotation direction of the rotary valve 41 is smaller than a seal width W of a seal region S between the high-pressure groove 47 and the outlet 45b of the suction communication passage 45. This reduces the suction loss amount of gas in each compression chamber and improves the compression efficiency while advancing the timing at which the suction of gas into the compression chamber starts.
摘要:
The compressor is provided with an oil separator for separating oil from refrigerant gas introduced into a separation chamber, an annular space for reserving oil separated from the refrigerant gas, and a reservoir chamber for reserving the thus separated oil. The oil separator is provided in a cylindrical hole formed in a discharge chamber from which the refrigerant gas is discharged and a lid for partitioning the cylindrical hole from the discharge chamber is provided in the cylindrical hole. The oil separator introduces the refrigerant gas from the discharge chamber to the separation chamber via the introduction passage. The annular space is provided around the lid and connected to the reservoir chamber via an oil passage. The reservoir chamber is connected to a crank chamber of a pressure lower than that in the discharge chamber.
摘要:
The compressor is provided with an oil separator for separating oil from refrigerant gas introduced into a separation chamber, an annular space for reserving oil separated from the refrigerant gas, and a reservoir chamber for reserving the thus separated oil. The oil separator is provided in a cylindrical hole formed in a discharge chamber from which the refrigerant gas is discharged and a lid for partitioning the cylindrical hole from the discharge chamber is provided in the cylindrical hole. The oil separator introduces the refrigerant gas from the discharge chamber to the separation chamber via the introduction passage. The annular space is provided around the lid and connected to the reservoir chamber via an oil passage. The reservoir chamber is connected to a crank chamber of a pressure lower than that in the discharge chamber.
摘要:
The piston type compressor includes a cylinder block, a rotary shaft, a plurality of pistons, a rotary valve and radial load transmission means. The radial load transmission means transmits a radial load caused by compression reaction force acting on the piston, which is on its compression stroke of the discharge stroke, to the rotary valve, thereby pressing the rotary valve against an inner peripheral surface of the valve chamber. The radial load transmission means has a direction turning portion for turning the radial load toward the inner peripheral surface of the valve chamber between the suction port communicating with the cylinder bore whose piston has completed the discharge stroke and the suction port communicating with the cylinder bore whose piston is on the compression stroke in a rotation direction of the rotary valve from the suction port communicating with the cylinder bore whose piston has completed the discharge stroke.
摘要:
The present invention relates to a method of synchronous control for a synchronous control system provided with a master device and at least one slave device connected via a communications network. The master device transmits first time data to the master device and the at least one slave device upon detection of generation of a synchronization signal, the first time data indicating a time at which the synchronization signal is generated. The master device transmits second time data to the at least one slave device upon reception of the first time data, the second time data indicating a time at which the first time data is received. Each of the at least one slave device calculates, upon reception of the first time data and the second time data, an estimated generation time at which the synchronization signal is estimated to be generated by subtracting time elapsed between the time indicated by the first time data and the time indicated by the second time data from time at which the first time data was received. Each of the at least one slave device controls synchronization with the master device based on the estimated generation time.
摘要:
A muffler forming member defines a muffler chamber. Refrigerant discharged from a cylinder bore is sent to the muffler chamber. The muffler forming member is coupled to a circumferential surface of a housing of a compressor. An oil separation chamber is defined in a discharge pressure zone of the compressor. The oil separation chamber separates the oil from the refrigerant discharged from the cylinder bore. The oil separation chamber extends into both the muffler forming member and the housing. The oil separation chamber has a refrigerant inlet through which the refrigerant flows into the oil separation chamber. The refrigerant inlet is formed in the muffler forming member. Therefore, the oil separation chamber is prolonged in the direction from the muffler forming member toward the housing, thereby improving the oil separation performance.
摘要:
A variable displacement compressor includes a housing, a rotary shaft, a swash plate, a suction pressure region, a suction throttle valve, an oil reservoir, a lubricating oil passage, a gas flow passage, a communication passage, and a throttle mechanism. The suction-pressure region includes a suction chamber and a suction passage. The suction throttle valve is arranged in the suction passage and defines an upstream suction-pressure region and a downstream suction-pressure region. The lubricating oil passage connects the oil reservoir to the upstream suction-pressure region. The gas flow passage connects the crank chamber to the suction chamber. The communication passage connects the lubricating oil passage to at least one of the downstream suction-pressure region, the gas flow passage and the crank chamber. The throttle mechanism is provided in the lubricating oil passage between the oil reservoir and a position where the communication passage connects to the lubricating oil passage.
摘要:
In a structure for mounting a filter in a compressor, a mounting member is connected to the filter. A receiving hole is formed in a housing of the compressor for receiving therein the mounting member. A first fitting portion is formed on an inner circumferential surface of a holding portion of the filter. A second fitting portion is formed on an outer circumferential surface of the mounting member for having fitting relation to the first fitting portion for an overlap distance in a radial direction of the receiving hole. When the mounting member is received in the receiving hole with the fitting relation, the filter is disposed in a fluid passage of the housing. A clearance having a dimension is formed between an outer circumferential surface of the holding portion and an inner circumferential surface of the receiving hole. Minimum value of the dimension is smaller than the overlap distance.
摘要:
The present invention relates to a method of synchronous control for a synchronous control system provided with a master device and at least one slave device connected via a communications network. The master device transmits first time data to the master device and the at least one slave device upon detection of generation of a synchronization signal, the first time data indicating a time at which the synchronization signal is generated. The master device transmits second time data to the at least one slave device upon reception of the first time data, the second time data indicating a time at which the first time data is received. Each of the at least one slave device calculates, upon reception of the first time data and the second time data, an estimated generation time at which the synchronization signal is estimated to be generated by subtracting time elapsed between the time indicated by the first time data and the time indicated by the second time data from time at which the first time data was received. Each of the at least one slave device controls synchronization with the master device based on the estimated generation time.
摘要:
In a structure for mounting a filter in a compressor, a mounting member is connected to the filter. A receiving hole is formed in a housing of the compressor for receiving therein the mounting member. A first fitting portion is formed on an inner circumferential surface of a holding portion of the filter. A second fitting portion is formed on an outer circumferential surface of the mounting member for having fitting relation to the first fitting portion for an overlap distance in a radial direction of the receiving hole. When the mounting member is received in the receiving hole with the fitting relation, the filter is disposed in a fluid passage of the housing. A clearance having a dimension is formed between an outer circumferential surface of the holding portion and an inner circumferential surface of the receiving hole. Minimum value of the dimension is smaller than the overlap distance.