US 11,994,119 B2
Compressor
Kwang Jin Kim, Daejeon (KR); Ok Hyun Kim, Daejeon (KR); Seyoung Song, Daejeon (KR); and Jun Sig Choi, Daejeon (KR)
Assigned to HANON SYSTEMS, Daejeon (KR)
Appl. No. 17/311,398
Filed by Hanon Systems, Daejeon (KR)
PCT Filed Jan. 2, 2020, PCT No. PCT/KR2020/000026
§ 371(c)(1), (2) Date Jun. 7, 2021,
PCT Pub. No. WO2020/145569, PCT Pub. Date Jul. 16, 2020.
Claims priority of application No. 10-2019-0002224 (KR), filed on Jan. 8, 2019.
Prior Publication US 2022/0025875 A1, Jan. 27, 2022
Int. Cl. F04B 27/10 (2006.01); F04B 1/295 (2020.01); F04B 27/18 (2006.01)
CPC F04B 27/109 (2013.01) [F04B 1/295 (2013.01); F04B 27/1063 (2013.01); F04B 2027/189 (2013.01); F04B 2027/1895 (2013.01)] 10 Claims
OG exemplary drawing
 
1. A compressor comprising:
a casing;
a rotary shaft rotatably mounted in the casing;
a compression mechanism configured to compress a refrigerant by operating in conjunction with the rotary shaft;
a thrust plate configured to support an end surface of the rotary shaft;
a chamber configured to accommodate the thrust plate; and
a slit configured to guide oil to the chamber, wherein a part of the slit is formed to face a contact portion between the rotary shaft and the thrust plate,
wherein the casing further comprises a bore, a suction chamber, a discharge chamber and a crank chamber,
wherein the compression mechanism further comprises a swash plate configured to rotate in the crank chamber by operating in conjunction with the rotary shaft, a piston configured to reciprocate in the bore by operating in conjunction with the swash plate, the piston configured to define a compression chamber together with the bore, and an inclination adjusting mechanism configured to adjust an inclination angle of the swash plate with respect to the rotary shaft,
wherein the inclination adjusting mechanism further comprises an inflow path configured to guide a fluid in the discharge chamber to the crank chamber, and an outflow path configured to guide the fluid in the crank chamber to the suction chamber, and wherein the slit is provided to allow the outflow path and the chamber to communicate with each other,
wherein the casing further comprises a cylinder block having the chamber, and a rear housing fastened to the cylinder block and having the suction chamber and the discharge chamber, wherein the cylinder block further comprises an end surface facing the rear housing, and wherein the chamber and the slit extend to the end surface of the cylinder block from a tip portion of the rotary shaft,
wherein the chamber further comprises a first chamber configured to accommodate the thrust plate, a second chamber configured to communicate with the first chamber, and a third chamber configured to communicate with the second chamber and extending to the end surface of the cylinder block,
wherein the slit is provided to allow the outflow path to communicate with the first chamber, the second chamber, and the third chamber, and
wherein an oil recovery hole, which allows the third chamber and the inflow path to communicate with each other, is formed in the end surface of the cylinder block to recover the oil in the chamber to the crank chamber.