Swash plate-type variable displacement compressor

A swash plate-type, variable displacement compressor comprising:

• a front housing;
• a cylinder block;
• a cylinder head;
• a drive shaft rotatably supported by said front housing and said cylinder block;
• a rotor fixed to said drive shaft so as to be rotatable with said drive shaft;
• a plurality of pistons slidably accommodated in a corresponding plurality of cylinder bores which are provided and arranged through an end surface of said cylinder block, and axes of said cylinder bores are arranged about a virtual cylinder having a radius R and formed around an axis X of said drive shaft;
• a swash plate through which a central portion said drive shaft penetrates and to which is connected each of said pistons via a pair of shoes;
• a connection mechanism operably connected between said rotor and said swash plate, which enables said swash plate to change its oblique angle with respect to said axis X of said drive shaft;
• and
• said swash plate comprising a flat ring and a second ring wherein;
• said pistons are connected to said flat ring from inside;
• and said connection mechanism comprises a first arm and a second arm provided on said rotor, a pin, and a third arm formed on said swash plate, wherein said pin extends in a direction tangential to surface of said virtual cylinder.