摘要:
A wobble plate compressor with a variable displacement mechanism includes a compressor housing (3) which is provided with a crank chamber (32) and a cylinder block (31) in which a plurality of cylinders (33) are formed. A drive shaft (7) is rotatably supported in the housing. A rotor (9) is fixed on the drive shaft (7) and variably connected to an inclined plate (11) through a hinge mechanism which includes a first arm portion (93) which is formed on either one of the rotor or inclined plate, a second arm portion (114) which is provided with an elongate hole (115) formed on the other thereof and a guide pin (12) which is fixedly disposed in a hole which is formed through the first arm portion. A wobble plate (13) is adjacent (8) the inclined plate and converts rotary motion of the inclined plate into nutating motion thereof. A plurality of pistons (19) are coupled with the wobble plate through a plurality of connecting rods (18) each of which is reciprocably fitted within a respective one of the cylinders and of which the stroke volume is changed in accordance with variation of the angle of the inclined plate. The elongate hole is shaped so that a top clearance of the piston provides the least volume at the time that the angle of the inclined plate is largest, and the top clearance of the piston provides the largest volume at the time that the angle of the inclined plate is smallest. Therefore, even though the range of inclination of the angle of the inclined plate is narrow, a wide range of control of the displacement volume of the compressor can be accomplished.
摘要:
A compressor (1) has a rotation preventing mechanism (60) for preventing a wobble plate (14) from rotating relatively to a housing (2,3,4,5). The mechanism (60) comprises a guide plate (62) rigidly or pivotably mounted in the housing (2,3,4,5) adjacent to the circumferential edge of the nutating wobble plate (14). Also, the same circumferential edge has a hole (142) in which a cylindrical block (61) is rotatably mounted but prevented from sliding out of the wobble plate (14). The cylindrical block (61) has a transverse groove (611) that slidably receives a free edge of the guide plate (62).
摘要:
A wobble plate type compressor (1) with a variable displacement mechanism includes a compressor housing (3) which is proveded with a crank chamber (32) and a cylinder block (31) in which a plurality of cylinders (33) are formed. A front end plate (2) is fixed on one end surface of the compressor housing (3). A cylinder head (5) which is provided with a suction chamber (52) and a discharge chamber (53) is fixed on the other end surface thereof. A drive shaft (7) is rotatably supported in the housing (3) and one end of the drive shaft (7) is rotatably supported in a central bore (35) in the cylinder block (31). A rotor (9) is fixed on the drive shaft (7) and is variably connected to an inclined plate (11) through a hinge mechanism. A wobble plate (13) is adjacent to the inclined plate (11) and converts rotary motion of the inclined plate (11) into nutating motion thereof. A plurality of pistons (19) are coupled with the wobble plate (13) through a plurality of connecting rods (18) each of which is reciprocably fitted within a respective one of the cylinders (33) and of which the stroke volume is changed in accordance with variation of the angle of the inclined plate (11). A control valve (60) controls the communication between the crank chamber (32) and the suction chamber (52) through a conduit. The control valve is disposed in the central bore (35). Therefore, the compressor can be easily assembled since the outer shape of the compressor housing is formed cylindrical.
摘要:
A compressor (1) has a rotation preventing mechanism (60) for preventing a wobble plate (14) from rotating relatively to a housing (2,3,4,5). The mechanism (60) comprises a guide plate (62) rigidly or pivotably mounted in the housing (2,3,4,5) adjacent to the circumferential edge of the nutating wobble plate (14). Also, the same circumferential edge has a hole (142) in which a cylindrical block (61) is rotatably mounted but prevented from sliding out of the wobble plate (14). The cylindrical block (61) has a transverse groove (611) that slidably receives a free edge of the guide plate (62).
摘要:
A wobble plate compressor, with a variable displacement mechanism which involve two bypass passages (25,27) between a crank chamber (22) and a suction chamber (40). A bellows (171) is disposed in one of the bypass passages and operates to open and close the communication between the crank chamber and the suction chamber in accordance with the pressure in the crank chamber to maintain the pressure in the crank chamber at a predetermined pressure. A solenoid operated control valve (18) is disposed in the other bypass passage and operates to open and close the communication between the crank chamber and the suction chamber by receiving a signal from an external sensor.