摘要:
A compressor (20) has a case (22) and a crankshaft (38). The case has a number of cylinders (30-32). For each of the cylinders, the compressor includes a piston (34) mounted for reciprocal movement at least partially within the cylinder. A connecting rod (36) couples each piston to the crankshaft. A pin (44) couples each connecting rod to the associated piston. Each pin has first (52) and second (53) end portions mounted to first (56) and second (57) receiving portions of the associated piston and a central portion (48) engaging the associated connecting rod. For each of the pistons a pair of first and second at least partially non-metallic plugs have respective stems received in the pin first and second end portions and respective heads facing a wall surface of the associated cylinder.
摘要:
A vehicle air-conditioner compressor may include a housing having a front housing section and a rear housing section; a shaft rotatably installed in the housing; a lug fixed at a preset position on the shaft; a swash plate coupled with the lug at one side thereof and rotating together with the lug, a piston connected to the swash plate by a shoe and moved reciprocatingly by the swash plate; a cylinder that accommodates the piston therein, and a pressure-sensing chamber coupled with a rod at the other side of the swash plate, that operates the rod using a pressure provided from a high-pressure chamber of the rear housing.
摘要:
A sensor system for determining a condition associated with a piston rod of a reciprocating system includes an interrogator system having a first antenna. The sensor system further includes a second antenna separated from the first antenna by an air gap distance. The second antenna is configured to be coupled to the piston rod of the reciprocating system. The second antenna is a patch antenna and is configured to communicate with the first antenna through a range of translational movement relative to the first antenna. The sensor system further includes a radio frequency sensor coupled to the second antenna. The radio frequency sensor is configured to be coupled to the piston rod of the reciprocating system, measure a characteristic associated with the piston rod of the reciprocating system, and transmit data associated with the characteristic to the first antenna of the interrogator system through the second antenna.
摘要:
A cam driven compressor includes a cam coupled to a plurality of cylinder and piston assemblies. Each cylinder and piston assembly comprises a piston located and movable within a respective cylinder. Each cylinder has a cylinder head. The compressor comprises a housing defining a cavity configured to receive a portion of a source gas from one or more of the cylinders in order to maintain a positive gas pressure within the cavity.
摘要:
A hermetic compressor may include a crankshaft having an input shaft rotatably supported on the cast-iron block along the crankshaft axis and connected to the electric motor rotary output, and an eccentric crankpin orbitally rotating about the axis as the crankshaft is rotated. A pair of opposed pistons may lie on the common plane. Each piston may be pivotably connected to one of the connecting rod piston ends to drive the pistons in an oscillatory manner within the cylinders as the crankshaft rotates. The piston and cylinder pairs may cause fluid to be pumped from the inlet port to the outlet port as the piston oscillates varying the volume of the enclosed space bound by the piston and the cylinder pairs.
摘要:
A radial piston machine includes a piston having a base which is provided with a roller. The roller is held secure by a bearing shell that is inserted in the piston base.
摘要:
The present document describes a rotating and reciprocating piston device comprising: chambers disposed about a chamber axis, the chambers having two ends and a port for passage of a fluid at each one of the ends of the chambers; pistons having two ends, each one of the pistons slidably positioned within a respective one of the chambers thereby determining a space at either end of each piston within its respective chamber; and a track forming a closed circuit through which the chamber axis passes, the track for determining a position of a piston within its respective chamber and hence the space on either side thereof.
摘要:
A double-acting piston compressor (1) includes at least one cylinder (3) in which a double-acting piston (4) moves, the cylinder (3) and the piston (4) jointly defining an upper chamber (5) and a lower chamber (6) each provided with at least one intake duct (7) and at least one delivery duct (8), and each duct including at least one valve (90, 91), and a linking rod (10) connecting the double-acting piston (4) to a transmission member (11) collaborating, on the one hand, with a guide roller (12) and, on the other hand, with a pinion (15), at least one anchoring member (22) collaborating with the pinion (15), a connecting rod (25) to which the pinion (15) is articulated by a pivot pin (26), the connecting rod (25) being connected to the crank (28) of a crankshaft (27) housed in bearings formed in the compressor casing (2).
摘要:
A fluid compressor in which the drive shaft is arranged in a casing including a fluid suction chamber and a fluid discharge chamber concentrically formed therein, with an eccentric end thereof projected from an open end of the casing. Secured to the open end of the casing is a cylinder housing formed integrally with cylinders cruciformly intersecting with each other. Placed in the cylinders are pistons which define therein a recess in which the eccentric end of the drive shaft is fitted. A flange-like bearing retainer chamber is secured to the inner peripheral wall of the open end of the casing which has a hub bulged in the cylinder housing. A needle bearing is mounted in the hub with a portion thereof located in the cylinder housing and supports a portion of the drive shaft adjacent the eccentric end thereof.