摘要:
A compressor equipped with a compressing unit comprising a compressing section and a motor section which are connected to each other and Which are encased in a closed vessel, the compressing section including a crank shaft rotatable so that a piston reciprocates within a cylinder and the motor section comprising a rotor and stator and disposed at a lower side of the compressing section, the rotor being connected to the crank shaft so that the crank shaft is rotatable in response to driving of the motor section. Springs are provided between the compressing unit and the closed vessel so as to elastically support the compressing section and the motor section, and first and second balance weights are respectively provided on upper and lower portions of a rotor of the motor section. The first and second balance weights are determined on the basis of the resultant load to be applied to an eccentric portion of the crank shaft, a con'rod and the piston, the loads of the first and second balance weights and distances among the first and second balance weights and the eccentric portion of the crank shaft.
摘要:
A hermetic compressor includes a sealed casing which accommodates therein a compressing unit for compressing a refrigerant and a driving unit for driving the compressing unit. An induction pipe is provided in the sealed casing for introducing the refrigerant into the compressing unit. The induction pipe has an outlet end communicating with the interior of the compressing unit and an inlet end which is opened to space in the sealed casing at a position corresponding to a node of a standing wave of the refrigerant in the sealed casing.
摘要:
A hermetic compressor includes a sealed casing which accommodates therein a compressing unit for compressing a refrigerant and a driving unit for driving the compressing unit. A communication passage is provided for establishing communication between the compressing unit and a discharge muffler. The discharge muffler is formed therein with a substantially annular hermetic passage for the compressed refrigerant introduced via the communication passage. In the substantially annular hermetic passage, the introduced compressed refrigerant is bifurcated in opposite directions. The substantially annular hermetic passage has an outlet in the discharge muffler. At the outlet, the bifurcated refrigerant joins and flows out of the substantially annular hermetic passage so as to reduce pressure pulsation of the compressed refrigerant by canceling pressure pulsation components contained in the bifurcated refrigerant. In order to enhance the cancellation effect, the outlet may be arranged at a position which is opposite, in a diametrical direction, to a position where the substantially annular hermetic passage communicates with the communication passage.
摘要:
A reciprocating compressor (K1-K3) comprising a connecting rod (21) in which a small end portion (22) having a small hole (22a) and a large end portion (25) having a large hole (25a) are coupled with each other; wherein the small end portion (22) is coupled with a piston (24) by a piston pin (23) loosely fitted into the small hole (22a), while an eccentric shaft (7a) of a crank shaft (7) is loogely fitted into the large hole (25a), wherein the large end portion (25) is formed with a cylindrical bore (25b) having an axis passing through a center of the large hole (25a) and a fixing hole (25c, 28, 30) communicating with the cylindrical bore (25b); wherein after a cylindrical distal end retaining portion (22c) of a rod portion (22b) of the small end portion (22) has been loosely fitted into or lightly press fitted into the cylindrical bore (25b), not only the cylindrical distal end portion (22c) is fixed in the cylindrical bore (25b) by inserting a locking pin (26) into the fixing hole (25c, 28, 30) while a small torsional degree of freedom about an axis of the rod portion (22b) is being imparted to the rod portion (22b) but axes of the small hole (22a) and the large hole (25a) of the connecting rod (21) are disposed so as to be maintained on an identical plane.
摘要:
A reciprocating compressor of the present invention includes an electric component (6), a compression component (9), and a container (1). The compression component includes a cylinder (14), a piston (16), an eccentric shaft (33), a piston pin (23), a connecting rod (22), an oil feeding mechanism (51), a communicating passage (22c), an oil feeding passage (23a), a communicating hole (22d) which is provided in the connecting rod such that a smaller-shaft hole (22b) and an internal space of the piston are communicated with each other via the communicating hole, and discharges the oil fed to the smaller-shaft hole to the internal space of the piston; and an oil feeding port (23b) provided in the piston pin such that the oil feeding passage and the smaller-shaft hole are communicated with each other via the oil feeding port and feeds the oil fed to the smaller-shaft hole to the oil feeding passage; wherein the oil feeding port is provided in the piston pin in a location other than a location facing a location at which the communicating passage opens in the smaller-shaft hole.
摘要:
In a hermetic compressor in a freezing refrigerating system or an air-conditioning system such as a refrigerator or a showcase, a construction is disclosed for intending to provide a low-noise hermetic compressor by effectively attenuating a pressure pulsation having occurred in a compression chamber with a suction muffler. By this construction, since a muffler cover 20 has a planar simple shape, the deformation upon molding becomes little and it can come into fully close contact with a muffler main body 19. Therefore, the pressure pulsation hardly leaks through the connecting portion between the muffler main body 19 and the muffler cover 20. The full silencing effect that the suction muffler 18 has is obtained and thereby noise can be reduced more effectively.
摘要:
An electrically-operated sealed compressor includes a cylinder, a cylinder head mounted on the cylinder and having a suction chamber and first and second discharge chambers, a piston accommodated in the cylinder, and a valve mechanism. The valve mechanism includes a suction muffler and a valve plate having at least one suction port, first and second discharge ports, and first and second pass holes. The first discharge port and the first pass hole communicate with the first discharge chamber, while the second discharge port and the second pass hole communicate with the second discharge chamber. The valve mechanism also includes first and second discharge valves mounted on the valve plate and accommodated in the first and second discharge chambers, respectively, a suction reed having a reed valve for selectively opening and closing the suction port, a discharge gasket for sealing the valve plate and the cylinder head, and a discharge muffler. The first and second discharge chambers are separated from each other by the discharge gasket to form respective independent spaces, while the first and second pass holes communicate with the discharge muffler.
摘要:
A reciprocating compressor of the present invention includes an electric component (6), a compression component (9), and a container (1). The compression component includes a cylinder (14), a piston (16), an eccentric shaft (33), a piston pin (23), a connecting rod (22), an oil feeding mechanism (51), a communicating passage (22c), an oil feeding passage (23a), a communicating hole (22d) which is provided in the connecting rod such that a smaller-shaft hole (22b) and an internal space of the piston are communicated with each other via the communicating hole, and discharges the oil fed to the smaller-shaft hole to the internal space of the piston; and an oil feeding port (23b) provided in the piston pin such that the oil feeding passage and the smaller-shaft hole are communicated with each other via the oil feeding port and feeds the oil fed to the smaller-shaft hole to the oil feeding passage; wherein the oil feeding port is provided in the piston pin in a location other than a location facing a location at which the communicating passage opens in the smaller-shaft hole.
摘要:
There is provided a compressor including a hermetic container storing therein a lubricant, an electric element, and a compression element driven by the electric element, the compression element including a crankshaft, a bearing portion, a cylinder block, a piston, and a joining portion, wherein a cylinder head is tightened and fixed together with a valve component by a bolt to an opening surface side of a compression chamber formed by a cylinder bore and the piston, and a screw hole portion formed in the opening surface side, for fixing the bolt includes a counterbore extending to the vicinity of a boundary between the cylindrical portion and the tapered portion.
摘要:
The present invention includes an electric component (331), a compression component (327), a sealed container (301), a suction pipe (324) and a discharge passage (405, 425a, 425, 470, 473). The compression component includes a crankshaft (343, 709), an oil feeding mechanism (368, 431, 433, 434, 708, 712, 713), an oil feeding passage (440, 714), and a scattering suppressing section (355, 455, 458, 461, 610, 616, 619, 706, 716). The scattering suppressing section suppresses the lubricating oil from being scattered from an opening of the oil feeding passage.