Piston type swash plate compressor

Abstract

A piston type swash plate compressor includes a housing, a cylinder block, a cylinder head, a rotary shaft, a plurality of cylinder bores, a plurality of pistons, a swash plate, a plurality of compression chambers, a plurality of head-side discharge chambers, a plurality of block-side discharge chambers, an outlet and a discharge path. The head-side discharge chambers are provided in the cylinder head. The block-side discharge chambers are provided in the cylinder block. The outlet is formed through the housing. The discharge path is formed in the housing and refrigerant gas is flowed through the discharge path from the compression chamber to the outlet through the head-side discharge chamber to the block-side discharge chamber. After refrigerant gas flowed from the compression chamber is flowed through one head-side discharge chamber which communicates with the compression chamber and one block-side discharge chamber, the refrigerant gas is flowed to another head-side discharge chamber.

What is claimed is: 
     
         1 . A piston type swash plate compressor comprising:
 a housing;   a cylinder block formed in the housing;   a cylinder head formed in the housing, the cylinder head connected to an end of the cylinder block;   a rotary shaft rotatably supported by the cylinder block;   a plurality of cylinder bores arranged around the rotary shaft;   a plurality of pistons respectively accommodated in the cylinder bores;   a swash plate integrally rotating with the rotary shaft, the swash plate engaged with the pistons;   a plurality of compression chambers respectively defined in the cylinder bores by the pistons;   a plurality of head-side discharge chambers provided in the cylinder head;   a plurality of block-side discharge chambers provided in the cylinder block;   an outlet formed through the housing, the outlet through which compressed refrigerant gas is flowed outside the housing; and   a discharge path formed in the housing, the discharge path through which refrigerant gas is flowed from the compression chamber to the outlet through the head-side discharge chamber and the block-side discharge chamber,   wherein, after refrigerant gas flowed from the compression chamber is flowed through one head-side discharge chamber which communicates with the compression chamber and one block-side discharge chamber, the refrigerant gas is flowed to another head-side discharge chamber.   
     
     
         2 . The piston type swash plate compressor according to  claim 1 , wherein a plurality of the head-side discharge chambers is formed by dividing a space formed annularly around the rotary shaft in a rotating direction of the rotary shaft by partition walls. 
     
     
         3 . The piston type swash plate compressor according to  claim 1 , wherein a plurality of the block-side discharge chambers is formed around the rotary shaft, after refrigerant gas flowed from the compression chamber is flowed through the discharge path from one block-side discharge chamber to one head-side discharge chamber, the refrigerant gas is flowed to another block-side discharge chamber. 
     
     
         4 . The piston type swash plate compressor according to  claim 3 , wherein each block-side discharge chamber is located between any two adjacent cylinder bores. 
     
     
         5 . The piston type swash plate compressor according to  claim 1 , wherein a gasket is provided between the cylinder block and the cylinder head, a first throttle is formed through the gasket, at least one of the block-side discharge chambers communicates with at least one of the head-side discharge chambers through the first throttle. 
     
     
         6 . The piston type swash plate compressor according to  claim 1 , wherein a valve plate is provided between the cylinder block and the cylinder head, a part of the valve plate forms a discharge valve, a second throttle is formed in the valve plate and at least one of the block-side discharge chamber communicates with at least one of the head-side discharge chamber through the second throttle.