Electromotive swash plate type compressor

Abstract

A compressor with an electromotive swash plate includes a front housing having a front discharge chamber for discharging a firstly compressed refrigerant, a rear housing having a rear suction chamber communicating with the front discharge chamber to receive the firstly compressed refrigerant and a rear discharge chamber for discharging a secondly compressed refrigerant, the rear suction chamber and the rear discharge chamber being divided by a partition, a cylinder block disposed between the front and rear housings, the cylinder block being provided with a swash plate chamber receiving the swash plate, a plurality of bores in which respective pistons are slidably installed, a discharge gas passage for assigning refrigerant flow between the front and rear housings, a driving shaft mounted in the cylinder block, the driving shaft being rotated by a motor received in a motor chamber formed adjacent to one of the front and rear housings, and a plurality of dual-head pistons reciprocating in the bore due to the inclination of the swash plate.

1 . A compressor with an electromotive swash plate, comprising: 
 a front housing having a front discharge chamber for discharging a firstly compressed refrigerant;    a rear housing having a rear suction chamber communicating with the front discharge chamber to receive the firstly compressed refrigerant and a rear discharge chamber for discharging a secondly compressed refrigerant, the rear suction chamber and the rear discharge chamber being divided by a partition;    a cylinder block disposed between the front and rear housings, the cylinder block being provided with a swash plate chamber receiving the swash plate, a plurality of bores in which respective pistons are slidably installed, a discharge gas passage for assigning a refrigerant flow between the front and rear housings;    a driving shaft mounted in the cylinder block, the driving shaft being rotated by a motor received in a motor chamber formed adjacent to one of the front and rear housings; and    a plurality of dual-head pistons reciprocating in the bore due to the inclination of the swash plate.    
   
   
       2 . The compressor of  claim 1 , further comprising a transferring unit for transferring the refrigerant introduced into the swash plate chamber to the motor chamber and a recovering unit for recovering the refrigerant from the motor chamber to the cylinder bores.  
   
   
       3 . The compressor of  claim 2 , wherein the transferring unit is a transferring passage formed through one of the front and rear housings to allow the swash plate chamber to communicate with the motor chamber.  
   
   
       4 . The compressor of  claim 2 , wherein the recovering unit is a suction passage formed adjacent to one of the front and rear housings to allow the motor chamber to communicate with the cylinder bores.  
   
   
       5 . The compressor of  claim 1 , wherein the front housing further comprises a front suction chamber communicating with the swash plate chamber through a low pressure communication passage formed on the cylinder block to receive the refrigerant.  
   
   
       6 . The compressor of  claim 1 , wherein the rear suction chamber is formed around the rear discharge chamber of the rear housing.  
   
   
       7 . The compressor of  claim 1 , wherein the rear discharge chamber is provided with a discharge passage defined by a discharge pipe for reducing a discharge pressure pulsation.  
   
   
       8 . The compressor of  claim 1 , wherein the discharge gas passage is formed to allow the front discharge chamber to communicate with the rear suction chamber.