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:
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.
摘要:
An expander-compressor unit (200) includes a closed casing (1), a compression mechanism (2) disposed at an upper position in the closed casing (1), an expansion mechanism (3) disposed at a lower position in the closed casing (1), a shaft (5) coupling the compression mechanism (2) to the expansion mechanism (3), and an oil pump (6) disposed between the compression mechanism (2) and the expansion mechanism (3). The oil pump (6) supplies the oil held in an oil reservoir (25) to the compression mechanism (2) via a suction passage. A strainer (65) is provided to the suction passage so that the oil to be drawn into the oil pump (6) passes through the strainer.
摘要:
A rotary expander includes: a cylinder (61); a piston (62) disposed inside the cylinder (61); closing members disposed with the cylinder (61) being sandwiched therebetween; and an injection passage for introducing further a working fluid in the expansion process of the working fluid. An introduction outlet (65c) of the injection passage leading to the working chamber (69) is provided at a position located inwardly away from the inner circumferential surface (61b) of the cylinder (61), on one of the closing members, in such a manner that the injection passage and the discharge passage are not communicated with each other.
摘要:
According to the present invention, a recess (25) which is induction means is provided in a top end surface (24) of a piston (16), the recess (25) guides working fluid (3) staying near an inner peripheral surface of a compression chamber (13) from an outer peripheral edge of the top end surface (24) toward an opposite position of the top end surface (24) facing a discharge hole (19), and the recess (25) smoothens discharging motion of working fluid (3) from the discharge hole (19).
摘要:
A refrigeration cycle apparatus 100 includes a low-pressure compressor 113, a high-pressure compressor 101, a radiator 103, a gas-liquid separator 107, an expansion valve 109, an expander 105 and an evaporator 111. The low-pressure compressor 113 and the expander 105 are coupled by a shaft 116, and the low-pressure compressor 113 is driven using power recovered by the expander 105 from a refrigerant. The low-pressure compressor 113 and the high-pressure compressor 101 are serially connected by an intermediate-pressure flow path 114. The gas-liquid separator 107 and the intermediate-pressure flow path 114 are connected by the reciprocating flow path 115. The reciprocating flow path 115 is configured to allow the refrigerant to circulate bidirectionally. It is possible to regulate the refrigerant flow rate in the reciprocating flow path 115 by controlling the opening degree of the expansion valve 109.
摘要:
A rotary compressor (100A) includes a closed casing (1), a compression mechanism (48), a lower end-face plate (34), and a communication hole (50). An oil reservoir (12) is formed at the bottom of the closed casing (1). The lower end-face plate (34) divides the oil reservoir (12) into a plurality of sections (12a) and (12b) in the vertical direction. The plurality of sections of the oil reservoir (12) communicate with each other through the communication hole (50). The communication hole (50) is located on the same side as a discharge port (8b) of the compression mechanism (48) with respect to a reference plane (H1).
摘要:
A valve device of a compressor of the present invention comprises a plate (17), a reed (21, 75), and a stopper (31), wherein the reed includes: an opening/closing section (60, 70), a fastened section (61, 71); and a joining section (62, 72), the opening/closing section, the fastened section and the joining section being arranged in a direction in which a symmetric axis extends; wherein in a portion of the joining section which is closer to the opening/closing section, a pair of portions (102, 112, 82, 86) of an outer periphery of each of one or two openings (63, 65, 73, 77) which are closest to both ends of the joining section are symmetric with respect to the symmetric axis so as to form a substantially-V-shape or substantially-U-shape, in a direction from the opening/closing section toward the fastened section; and in a portion of the joining section which is closer to the fastened section, a pair of portions (103, 113, 83, 87) of the outer periphery of each of one or two openings which are closest to the both ends of the joining section are symmetric with respect to the symmetric axis so as to form a substantially-V-shape or substantially-U-shape, in a direction from the fastened section toward the opening/closing section.
摘要:
An expander-integrated compressor 200A includes a closed casing 1, a compression mechanism 2, an expansion mechanism 3, a shaft 5, an oil pump 6, and a heat insulating structure 30A. The oil pump 6 is disposed between the compression mechanism 1 and the expansion mechanism 3, and draws, via an oil suction port 62q, an oil held in an oil reservoir 25 to supply it to the compression mechanism 2. The heat insulating structure 30A is disposed between the oil pump 6 and the expansion mechanism 3, and limits a flow of the oil between an upper tank 25a, in which the oil suction port 62q is located, and a lower tank 25b, in which the expansion mechanism 3 is located, so as to suppress heat transfer from the oil filling the upper tank 25a to the oil filling the lower tank 25b.
摘要:
An expander-compressor unit (200) includes a closed casing (1), a compression mechanism (2) disposed at an upper position in the closed casing (1), an expansion mechanism (3) disposed at a lower position in the closed casing (1), a shaft (5) coupling the compression mechanism (2) to the expansion mechanism (3), and an oil pump (6) disposed between the compression mechanism (2) and the expansion mechanism (3). The oil pump (6) supplies the oil held in an oil reservoir (25) to the compression mechanism (2) via a suction passage. A strainer (65) is provided to the suction passage so that the oil to be drawn into the oil pump (6) passes through the strainer.