摘要:
The scroll type compressor includes a stationary and orbiting scroll members, of which the spiral elements are interfit at an offset angle to form line contacts defining at least one fluid pocket, and an anti-spin mechanism for causing the orbiting member to orbit within the stationary member. A drive shaft is rotatably supported in a housing, and has an outer end a cylindrical inner end and, depending upon the embodiment, either a crank pin or a sliding guide portion projecting axially inward from its inner end. A drive bush couples the drive shaft to the orbiting scroll member, and has either a circular aperture for receiving the crank pin or an engaging slotted recess for receiving the sliding guide portion, as the case may be, whereby the drive bush is either pivotable or slidable with respect to the drive shaft. A counterweight is mounted on either the crank pin or the sliding guide portion between the drive bush and the drive shaft, and is coupled to the drive bush for conjoint movement therewith. The counterweight has a cylindrical recess for receiving the cylindrical inner end of the drive shaft, with a clearance maintained between the radially inner perimeter of the recess and the radially outer perimeter of the inner end of the drive shaft, so as to allow the drive bush and counterweight either to pivot relative to the crank pin or to slide relative to the sliding guide portion, depending upon the embodiment.
摘要:
A scroll type compressor comprising a stationary scroll member (2) and a movable scroll member (4) accommodated in a housing (10, 39), the scroll members (2, 4) being engaged with each other so that the movable scroll member (4) is subjected to an orbital motion around the stationary scroll member (2) and forms compression chambers (39) therebetween, in which chambers (39) a coolant gas is compressed by a volume reduction of the chamber (39) in accordance with the orbital motion, and is discharged therefrom to a refrigeration circuit. An intake port (8) for introducing the coolant gas into the housing (10, 30) is provided at a position closer to lubrication indispensable mechanisms such as a main bearing (32) or a sealing means (31) while confronting the periphery of a counterweight (35). The coolant gas is sucked into the interior of the housing (10, 39) and fed to the lubrication indispensable mechanisms (31, 32). When the counterweight (35) is positioned on the side closer to the intake port (8), the coolant gas is introduced directly therefrom to the compression chamber (39).
摘要:
In a scroll type compressor, a discharging port in a side plate of a stationary scroll member is formed in an elongated shape, such as an oval, so that a tip-seal element provided in the beginning area of a movable spiral body does not interfere with the discharging port in the course of an orbital motion, whereby damage to the tip-seal element due to a draw-in thereof to the discharging port can be avoided, while ensuring a sufficient fluid pressure and full sealability.
摘要:
A scroll type compressor comprising a fixed scroll and movable scroll. The movable scroll revolves above an axis of the fixed scroll. Thus, a spiral portion of the movable scroll slides and moves relative to a spiral portion of the fixed scroll so as to compress a refrigerant gas between the spiral portions. A sealing member is mounted on the free end of each sealing member. The sealing member slides on a facing surface of the opposing scroll. An oil passage is provided in at least one of the scrolls. The oil passage opens at the rear surface of the sealing member and is able to supply lubricating oil to the rear surface. A constriction is provided in the oil passage. The constriction limits the flow of the lubricating oil towards the sealing member.