Variable displacement compressor

In a variable displacement compressor of the type that includes a drive shaft, a sleeve axially slidably mounted on said drive shaft, a swash plate tiltably connected to said sleeve through connecting pins and adapted to make an oscillatory rotation, a piston carrier mounted on said swash plate through bearing means, and pistons drivingly connected to said piston carrier and slidably received in cylinder bores so as to be reciprocatingly moved in said cylinder bores in response to the oscillatory rotation of said swash plate, the angle of tilt of said swash plate being variable by an axial movement of said sleeve and a movement of said swash plate the improvement comprising:

• a driving plate fixed to said drive shaft and engaged with said swash plate so as to transmit the torque of said drive shaft to said swash plate;
• a fulcrum pin connected between a pair of lugs projecting from a first surface of said swash plate causing said fulcrum pin to be moveable together with said swash plate;
• and
• a lug projecting axially from a first side of said drive plate, said lug includes therein a cam groove in the form of a closed loop;
• wherein said fulcrum pin is moved along said cam groove towards said drive shaft as the tilting angle of said swash plate is decreased.