公开(公告)号：US20250101972A1

公开(公告)日：2025-03-27

申请号：US18765466

申请日：2024-07-08

Applicant: SAMSUNG ELECTRONICS CO., LTD.

Inventor： Kyungmin KIM ,  Jiwoong KIM ,  Ohyeok KWON ,  Yongtae KIM ,  Kichul SONG ,  Wooju JEON

IPC: F04B39/10 ,  F04B39/00 ,  F04B39/08

Abstract: A compressor may include a valve plate having a suction port, a cylinder forming a compression chamber, a piston in the compression chamber, and which is movable in the compression chamber, a suction valve unit coupled to the valve plate and having a suction valve which is movable, based on movement of the piston, to open and close the suction, and a cushioning member disposed between the valve plate and the suction valve unit, outside of the suction port, and configured to be elastically deformed by contact with the suction valve if the suction valve is moved to open or close the suction port.

公开(公告)号：US20250075692A1

公开(公告)日：2025-03-06

申请号：US18882040

申请日：2024-09-11

Applicant: Samsung Electronics Co., Ltd.

Inventor： Wooju JEON ,  Ohyeok KWON ,  Kyungmin KIM ,  Yongtae KIM ,  Jiwoong KIM ,  Kisun NAM ,  Kichul SONG

IPC: F04B39/02 ,  F04B35/04

Abstract: A reciprocating compressor is provided. The reciprocating compressor includes a case containing an oil reservoir, a motor including a stator disposed inside the case and a rotor that rotates with respect to the stator, a drive shaft that rotates integrally with the rotor and including a cavity formed at a lower portion thereof, a primary oil pump inserted into the cavity of the drive shaft and disposed in the case, a secondary oil pump into which a lower end portion of the drive shaft is inserted and coupled to the primary oil pump, a primary oil passage formed between an inner circumferential surface of the cavity of the drive shaft and the primary oil pump, and a secondary oil passage formed around the primary oil pump between an outer circumferential surface of the lower end portion of the drive shaft and the secondary oil pump, wherein, when the drive shaft rotates, oil contained in the oil reservoir moves to an upper portion of the cavity of the drive shaft along the primary oil passage and the secondary oil passage.