Variable capacity compressor

Abstract

A variable capacity compressor may include a drive shaft, a rotating plate connected to the drive shaft and rotatably disposed in a housing, a swash plate hingedly coupled to the rotating plate and rotated together with the rotating plate, pistons connected to an outer circumferential side edge of the swash plate and selectively inserted into compression chambers in the housing and reciprocating in the compression chambers when the swash plate is rotated, a rotating shaft hingedly connected to a center portion of the swash plate and rotated together with the swash plate, a connecting rod connected with the rotating shaft to move the rotating shaft in an axial direction to adjust a slope of the swash plate, and a drive motor connected to the connecting rod and moves the connecting rod in the axial direction of the rotating shaft.

Description

[0001] Cross References to Related Applications [0002] This application claims priority from Korean Patent Application No. 10-2013-0155849 filed on December 13, 2013, the entire contents of which are hereby incorporated by reference for all purposes. technical field [0003] The present invention relates to a variable capacity compressor, and more particularly, to a variable capacity compressor that accurately adjusts the slope of a swash plate to which pistons that compress refrigerant are connected, thereby adjusting the piston The reciprocating distance can be used to actively control the real-time discharge rate and flow rate. Background technique [0004] In general, compressors that compress refrigerant are used in air conditioning systems for vehicles, and recently a variable capacity compressor is used in which the introduction amount and discharge are automatically adjusted by a control valve and a swash plate installed in the compressor quantity. [0005] The v...

AI Technical Summary

Problems solved by technology

[0008] However, according to the variable capacity compressor of the related art, since the pressure of the refrigerant varies depending on the external environment, there is a problem that even if the same control voltage is applied, the inclination positions of the swash plates are different from each other, thereby being changed by the operation of the piston. The capacity of the pumped refrigerant changes, therefore, the torque of the compressor cannot be accurately identified

[0009] In addition, there are problems in that it is difficult to calculate the torque required to operate the compressor to perform precise control, and it is difficult to optimize fuel consumption efficiency, and therefore, fuel efficiency deteriorates

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