JPH0299283U - - Google Patents

Description

[Brief explanation of drawings]

Figure 1 is a longitudinal side view showing the entire fluid compressor, Figure 2 is a side view of the piston, Figure 3 is a side view of the blade, Figures 4 and 5 are the sliding part between the groove of the piston and the blade. Side sectional views showing Figures 6a to 6
Figure d is a partially longitudinal side view showing the compression process of refrigerant gas, Figure 7 is an explanatory diagram showing the force acting on the sliding part between the groove of the piston and the blade, and Figures 8-
FIG. 12 is a side sectional view showing the sliding portion between the groove of the piston and the blade. DESCRIPTION OF SYMBOLS 1... Compressor, 2... Sealed case, 3... Electric element (driving means), 7... Cylinder, 10... Piston 8 (rotating body), 12... Spiral groove, 13
...Blade, 14...Outer peripheral surface of blade, 15
... Inner peripheral surface of the blade, 16 ... Working chamber.

Claims (1)

[Claims for Utility Model Registration] (1) A sealed case, a cylinder provided within the sealed case and having a suction end side and a discharge end side, and a cylinder arranged eccentrically along the axial direction of the cylinder within the cylinder. , a cylindrical rotating body that is rotatable relative to the cylinder with a part of it in contact with the inner circumferential surface of the cylinder; A spiral groove is formed with a pitch that gradually decreases toward the side, and the groove is fitted into this groove so as to be freely removable in the approximate radial direction of the rotating body, and the amount of protrusion _l1 of the rotating body from the groove in the radial direction. It is formed so that the amount of immersion l ₂ into the groove always satisfies the relationship l ₁ ≦ l ₂ , and has an outer circumferential surface that closely contacts the inner circumferential surface of the cylinder, and the inner circumferential surface of the cylinder and the rotating body A spiral blade that divides a space between the outer peripheral surface of the cylinder and the rotating body into a plurality of working chambers, and the cylinder and the rotating body are relatively rotated, and the fluid flowing into the working chamber from the suction end side of the cylinder is A fluid compressor comprising a drive means for sequentially transferring the fluid to the working chamber on the discharge side of the cylinder. (2) A sealed case, a cylinder provided in the sealed case and having a suction end side and a discharge end side, and arranged eccentrically in the cylinder along the axial direction of the cylinder, and a part of the cylinder is arranged eccentrically along the axial direction of the cylinder. A cylindrical rotating body that can rotate relative to the cylinder while in contact with the inner peripheral surface, and a pitch that is provided on the outer periphery of the rotating body and gradually decreases from the suction end side to the discharge end side of the cylinder. A spiral groove is formed, and the width of the outer peripheral surface thereof is formed to be larger than the width of the inner peripheral surface, and is fitted into the groove so as to be freely removable in the approximate radial direction of the rotating body, and the inner periphery of the cylinder a helical blade whose outer circumferential surface is in close contact with the surface and which partitions a space between the inner circumferential surface of the cylinder and the outer circumferential surface of the rotary body into a plurality of working chambers; a fluid compressor that rotates the fluid compressor to sequentially transfer fluid flowing into the working chamber from the suction end side of the cylinder to the working chamber on the discharge side of the cylinder.