Spiral compressor

A compressor and screw technology, applied in the field of screw compressors or scroll compressors, can solve problems such as leakage

Active Publication Date: 2018-06-29
VOLKSWAGEN AG
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Furthermore, carbon dioxide as a coolant has a relatively small molecular size, as a result of which significant leaks would already be possible in relatively small gaps

Method used

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  • Spiral compressor
  • Spiral compressor

Examples

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Embodiment Construction

[0023] figure 1 The screw compressor shown comprises a multi-part housing, in which a double-walled stator screw 10 is immovably integrated. The stator screw 10 is here in one piece and is thus connected completely seamlessly to the flat, substantially circular housing section 14 of the first housing part 12 , wherein the housing section 14 forms a fitting. Belonging to the bottom 14 of the stator helix 10, the pressure chamber is arranged between the stator helix 10 and the rotor helix 18 embedded in the stator helix 10 eccentrically with respect to the track axis 16, and the pressure chamber is composed of the stator helix 10 and the rotor helix The part 18 delimits in a radial direction with respect to the track axis 16 , and the pressure chamber is delimited by said bottom in one of the axial directions with respect to the track axis 16 . The stator helix 10 is also surrounded by a circular circumferential delimiting wall 42 which is likewise integral and is thus connecte...

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Abstract

The invention relates to a spiral compressor having a stator spiral member, a rotor spiral member capable of being driven by a rail and bottoms associated with the stator spiral member and the rotor spiral member respectively. The bottom has a boundary for defining a pressure cavity in an axial direction of a rail axis relative to the rotor spiral member, the boundary of the pressure cavity is defined by the stator spiral member and the rotor spiral member in a radial direction of the rail axis relative to the rotor spiral member, and the spiral compressor is characterized in that the rotatorspiral member is arranged in a movable manner relative to the associated bottom. The bottom associated with the rotor spiral member should not move with movement of the rotor spiral member along the rail, so that the bottom is statically integrated in the spiral compressor, particularly a housing of the spiral compressor, and thus can support force pointing axially generated due to pneumatic overpressure in the pressure cavity. Consuming measures taken for compensating for pressure axially acting on the following bottom of the rotor spiral member can be avoided, such as through integration ofa so-called intermediate pressure chamber.

Description

technical field [0001] The invention relates to a screw compressor or a scroll compressor which can be provided in particular as a coolant compressor for an air conditioner of a motor vehicle. Background technique [0002] In principle, screw compressors have a number of advantages over other types of compressors, such as piston compressors, which make screw compressors predestined for use as coolant compressors for air conditioners in motor vehicles. As a result, screw compressors are, for example, more robust, more efficient and can also be produced inexpensively. Furthermore, the screw compressor is designed to have relatively small dimensions due to its radial direction of action when compressing the gas provided for this purpose, in particular along the axis of rotation of the drive shaft of the screw compressor. [0003] Screw compressors (see for example US 2013 / 0115123 A1) essentially comprise one or more screw pairs which engage one another nestedly in an eccentric...

Claims

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Application Information

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Patent Type & AuthorityApplications(China)
IPC IPC(8): F04C18/02
CPCF04C18/0223F04C18/0269F01C21/007F01C21/10F04C18/0215F04C18/0246
InventorA.吉特-格尔克
OwnerVOLKSWAGEN AG