US 12,326,148 B1
Rotary compressor
Li-Yao Chiang, Taoyuan (TW); Chia-Pin Chang, Taoyuan (TW); Wen-Jen Kuo, Taoyuan (TW); Hsi-Kun Hsu, Taoyuan (TW); Shun-Yung Huang, Taoyuan (TW); and Jose-Antonio Ruiz Bermejo, Taoyuan (TW)
Assigned to RECHI PRECISION CO., LTD., Taoyuan (TW)
Filed by RECHI PRECISION CO., LTD., Taoyuan (TW)
Filed on Sep. 30, 2024, as Appl. No. 18/901,466.
Claims priority of application No. 113130001 (TW), filed on Aug. 9, 2024.
Int. Cl. F04C 18/356 (2006.01); F04C 29/02 (2006.01)
CPC F04C 18/3562 (2013.01) [F04C 29/02 (2013.01); F04C 2240/809 (2013.01)] 9 Claims
OG exemplary drawing
 
1. A rotary compressor comprising:
a housing comprising a main shell, a top cover and a bottom cover;
a motor located in the housing;
a compression pump located in the housing and below the motor, the compression pump comprising:
a cylinder comprising a compression chamber in a center thereof, the compression chamber comprising a vane groove, a spring hole and a suction hole, wherein the spring hole is communicated with the vane groove, the suction hole, the vane groove and the spring hole are independent of each other and are not communicated with each other;
a ring rotatably located in the compression chamber of the cylinder;
a vane reciprocally moved in the vane groove of the cylinder, a front end of the vane and a peripheral surface of the ring are in contact with each other;
at least one spring located at each of the spring holes of the vane, so that the front end of the vane is in contact with the peripheral surface of the ring;
an upper support located in the housing and above the cylinder;
a lower support located in the housing and below the cylinder; and
a crankshaft located in the housing for disposing the upper support, the motor, the ring and the lower support;
wherein the cylinder comprises a first end surface and a second end surface, an oil storage area is formed between the second end surface of the cylinder of the compression pump and the bottom cover of the housing for storing refrigerant oil;
wherein an oil volume of the refrigerant oil in the oil storage area is V, an inner diameter of the main shell is M, a distance between a bottom surface of the bottom cover and a bottom surface of the cylinder of the compression pump is H, a circumference is π, and the following condition is satisfied:
25%≤V/(π(M/2)2H)≤40%.