A rotary internal combustion engine has: a rotor; a housing circumscribing a rotor cavity, the rotor received within the rotor cavity, the housing having a peripheral wall and a side housing assembly secured to the peripheral wall, the side housing assembly having plates located at spaced apart ends of the peripheral wall, the plates defining seal running surfaces in sealing engagement with opposed end faces of the rotor, the plates made of silicon carbide.

A motor-driven compressor includes an inverter that includes a circuit board and an electrical component, and an inverter cover that defines an inverter accommodating chamber together with an end wall of a motor housing member. The inverter accommodating chamber accommodates a first conductive member and a second conductive member. A first end of the first conductive member and a lead of the electrical component extend through the circuit board from a first surface, which faces the end wall, and are soldered to the circuit board on a second surface on a side opposite to the first surface. A first end of the second conductive member is electrically connected to a power supply connector. Second ends of the first conductive member and the second conductive member are mated to each other so as to be electrically connected to each other when the inverter cover is joined to the motor housing member.

A scroll compressor of vehicles includes a housing including a first opening to form a receiving space, a compressing mechanism, and an electrical machinery mechanism including a rotor and a stator. The electrical machinery mechanism, located in the receiving space, drives the compressing mechanism to rotates. A lower holder is fixed to an upper holder via the stator. The stator is coupled to a binding post by lead-out wires, and the binding post, away from a bottom wall of the housing, is located between an inner wall of the housing and an outer wall of the stator. The stator and the binding post are directly or indirectly installed to a same component, and a distance between an outlet of the lead-out wires and the binding post is constant during the assembling process of the binding post and the lead-out wires.

A flange is held by a peripheral wall of an intermediate housing member and a peripheral wall of a motor housing member. In this state, bolts are passed through the intermediate housing member and the flange and are threaded to a peripheral wall of the motor housing member, thereby integrally fixing a shaft support housing member to the intermediate housing member and the motor housing member. Thus, the shaft support housing member sufficiently receives the fastening force of the bolts. Vibration of the shaft support housing member is therefore easily suppressed. The intermediate housing member includes a peripheral wall. Thus, the intermediate housing member has a higher stiffness than in a case in which the intermediate housing member does not have the peripheral wall.

A compressor includes a stator core that includes a yoke portion and a teeth portion, a rotor that is arranged inside the stator core, a compression unit that compresses a refrigerant along with rotation of the rotor relative to the stator core, a container that has an internal space in which the stator core and the compression unit are arranged, a winding that is wound around the teeth portion, and an insulating film that is arranged in the slot so as to separate the winding from the stator core, wherein a welding portion that is fixed to the container by welding is formed on a side surface of the yoke portion on an outer diameter side, and a sheet that is sandwiched between the yoke portion and the insulating film is arranged in the slot that corresponds to the welding portion in a circumferential direction of the stator core.

A system includes a compressor housing having an intake portion and a discharge portion and a rotor disposed in the compressor housing and configured to compress a fluid flowing from the intake portion toward the discharge portion. The rotor includes a body portion and an internal passageway formed within the body portion extending along an axial length of the rotor. The internal passageway is configured to direct a lubricant between the intake portion and the discharge portion of the compressor housing.

Disclosed herein is a scroll compressor having a shaft balancer capable of attenuating vibration while preventing deformation of the rotary shaft during operation at a high speed.

To provide an insulating rolling bearing that is capable of preventing electrolytic corrosion and preventing a gap from being undesirably formed between a shaft and a raceway ring. A sub bearing 21 includes an inner ring 22, an outer ring 23, balls 24 interposed between the inner ring and the outer ring, and an insulating bushing 28 fitted to an inner peripheral portion of the inner ring 22. The insulating bushing 28 includes a generally cylindrical metal base 28a, and a resin layer 28b formed on an inner peripheral surface of the metal base 28a. The insulating bushing 28 is fitted to the inner peripheral portion of the inner ring 22 such that the metal base 28a abuts on the inner peripheral portion of the inner ring 22.

A scroll compressor of an electrical refrigerant drive contains a housing having a low-pressure chamber, a high-pressure chamber, compression chambers and a counter-pressure chamber. A stationary scroll has a base plate and a spiral wall, the base plate of the stationary scroll delimits the high-pressure chamber. A movable scroll has a base plate and a spiral wall which engages into the spiral wall of the stationary scroll and forms the compression chambers with the spiral wall. The base plate of the movable scroll delimits the counter-pressure chamber. A first fluidic connection is provided which connects the counter-pressure chamber to the radially innermost compression chamber, and the first fluidic connection is located in a positioning region of the radially innermost compression chamber between 75° to 195° following the merge angle.

In a scroll compressor, at an end plate surface of a fixed scroll, an annular back pressure groove connected to a back pressure chamber is provided, and an arc-shaped first groove and an arc-shaped second groove are provided inside the back pressure groove in a radial direction. A distance between the second groove and the back pressure groove is shorter than a distance between the first groove and the back pressure groove. A revolving scroll is provided with a first hole and a second hole for guiding lubricant oil from an oil supply path to the end plate surface side of the fixed scroll. At least part of a movement locus of an opening of the first hole is included in the first groove. At least part of a movement locus of an opening of the second hole is included in the second groove. The first groove and the second groove at least partially overlap with each other in the radial direction.