| 摘要 |
PROBLEM TO BE SOLVED: To prevent any seizure or the like between a swash plate and a shoe by altering a tilt angle of the swash plate according to a variation of pressure in a crankcase, making the stroke of a piston variable, and installing plural rollers rolling on the swash plate and a race holding these rollers rotatably, in space between the swash plate and the shoe. SOLUTION: When turning power of a mounted engine is transmitted to a shaft, the torque is transmitted to a swash plate 10 by way of a thrust flange 40 and linkage 41, and thereby this swash plate 10 is rotated. Since a shoe 11 relatively rotates on the swash plate 10 by a rotation of this swash plate 10, torque in this swash plate 10 is converted into the rectilinear reciprocation of a piston 7, whereby those of suction, compression and discharge of coolant gas are carried out. At this time, plural pieces of needle rollers 52 rolling on the swash plate 10 and a race 53 rotatably holding these needle rollers 52 both are installed in space between a plane part 11b of the shoe 11 and the swash plate 10, through which any possible seizure and wear lying between the swash plate 10 and the shoe 11 can be effectively prevented. |
