Analysis Of Working Characteristics And Experimental Investigation On Anew Rolling Piston Type Compressor With Asplice Blade For Automobile Air-conditioner

Rolling piston type rotary compressors are widely used in automobile air-conditioning systems. For they have many advantages: small size, high performance and fewer parts. But the old structure that with a spring and a linear blade has some shortcomings: damageable spring, large slide friction between blade and rolling ring and between blade and cylinder, poor sealing effect. ln this paper, a new rolling piston type rotary compressor with an arc blade for automobile air-conditioners is introduced. The geometric shape of the blade of this new type compressor is changed to arc. Its blade is spliced between the cylinder and the rolling ring. So the spring is removed. Slide friction is turned to rolling friction. Sealing effect gets better. The disadvantages of the old structure are overcome to some extend. The character of the new structure and its working principle are introduced in detail. The kinetic process of blade and rolling ring is studied. The dynamic character of the valve is considered. The stress of the blade, the hinge joint and cylinder under static pressure is analyzed through ANSYS, a finite element analysis software. Performance test for air compressors, performance test for automobile air-conditioning compressors and endurance test are conducted at last. By means of the theory investigation and the practice test, the new rolling piston type rotary compressor with an arc blade is proved to be available.