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Variable-displacement compressor

A compressor and capacity technology, which is applied in the direction of liquid variable capacity machinery, variable capacity pump components, mechanical equipment, etc., can solve the problems of reduced durability of rubber material components

Inactive Publication Date: 2013-02-27
SANDEN CORP
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Once exposed to high temperature, the durability of resin material and rubber material components will be reduced

Method used

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  • Variable-displacement compressor
  • Variable-displacement compressor
  • Variable-displacement compressor

Examples

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Embodiment Construction

[0032] Hereinafter, embodiments of the present invention will be described with reference to the drawings.

[0033] Figure 1 ~ Figure 4 It is a longitudinal sectional view showing a variable capacity compressor to which the present invention is applied.

[0034] The variable capacity compressor 100 used in the vehicle air conditioner includes: a cylinder block 101 having a plurality of (six in this embodiment) cylinders 101a around the outside of the central axis; 102; and the rear shell 104 which is arranged on the other end of the cylinder body 101 through the valve plate 103.

[0035] The front case 102, the cylinder block 101, the valve plate 103, and the rear case 104 constituting these cylindrical storage members are fastened to each other by a plurality of (six in this embodiment) through bolts 201 penetrating the peripheral portions of the members.

[0036] A drive shaft 106 is provided so as to traverse the inside of the crank chamber (inner space of the cylindrica...

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Abstract

Disclosed is a variable-displacement compressor for which lubrication performance and durability are ensured. The following are formed through a peripheral wall of a front housing (101): a first connection hole (202) adjacent to the upstream side, in a rotation direction, of a through bolt (201a) disposed outside a rotation track for a rotating member such as a swash plate inside a front housing (101); and a second connection hole adjacent to the downstream side, in the rotation direction, of an upper through bolt (201b). A storage chamber (206) that stores an oil in a refrigerant is provided outside the front housing (101) and connected, via the first and second connection holes, to the space inside the front housing (101). In-refrigerant oil caught on the upstream side of the first through bolt (201a) enters the storage chamber (206) via the first connection hole (202) as the refrigerant from the storage chamber (206) is returned to the space inside the front housing (101) via the second connection hole (203), such that the amount stored increases as the speed of rotation increases.

Description

technical field [0001] The present invention relates to a variable capacity compressor capable of lubricating a lubricated portion with oil contained in a refrigerant, and particularly relates to a device capable of adjusting the amount of oil supplied to the lubricated portion. Background technique [0002] In a variable capacity compressor used in a heat pump air conditioner of a vehicle, etc., oil contained in a refrigerant circulating inside the compressor is supplied to lubricate parts to be lubricated such as sliding parts of the compressor. [0003] However, during operation of the compressor, oil may excessively accumulate in the crank chamber in the compressor. Once the oil is excessively accumulated in the crank chamber, the rotating body in the crank chamber has no problem at low speed, but when rotating at a high speed, the oil is stirred at high speed, and frictional heat is generated by the stirring. Due to this frictional heat, the temperature of the oil and ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): F04B27/08
CPCF04B39/0207F04B53/18F04B39/02F04B39/04F04B27/109F04B27/1036F04B39/0284
Inventor 石川勉
Owner SANDEN CORP
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