公开(公告)号：JPH10288156A

公开(公告)日：1998-10-27

申请号：JP9704097

申请日：1997-04-15

Applicant: MATSUSHITA REFRIGERATION

Inventor： KATAYAMA MAKOTO ,  MORITA ICHIRO ,  KOBAYASHI MASANORI

IPC: F04C23/02 ,  F04B35/04 ,  H02K33/02

Abstract: PROBLEM TO BE SOLVED: To prevent local sliding and production of a wrench on a sliding part between a piston and a cylinder even at the time when an oscillating type compressor to be used for a refrigerating cycle, etc., is machined and assembled with a shaft center of the piston dislocated and to improve reliability of an elastic element. SOLUTION: This compressor is furnished with a piston 15 connected to a shaft 15 in the axial direction and free to rotate against the shaft 14. Consequently, even when it is machined and assembled with shaft centers of a cylinder 4, the piston 15 and a cylinder 4 dislocated, it is possible to prevent local sliding and production of a wrench on a sliding part between the piston 15 and the cylinder 4, to prevent lowering of efficiency of the compressor and lowering of reliability such as abrasion of the sliding part and to improve reliability of the elastic element 8.

公开(公告)号：JPH08284827A

公开(公告)日：1996-10-29

申请号：JP8385695

申请日：1995-04-10

Applicant: MATSUSHITA REFRIGERATION

Inventor： KOBAYASHI MASANORI

IPC: F04B39/00 ,  F04B39/02

Abstract: PURPOSE: To provide a hermetic compressor which has its bearing sliding part and connecting rod sliding part prevented from wearing away and is high in reliability. CONSTITUTION: A hermetic compressor is constituted of a stator 12, an electric motor 3 composed of a rotor 11, a cantileversupporting bearing 10, and a crank shaft 30 rotatably inserted in the cantilever-supporting bearing 10, in which the rotor 11 is fixed on one end and an eccentric part is provided on the other end, and provided with the taper slide surface tapered toward the rotor and the eccentric part.

公开(公告)号：JPH08159071A

公开(公告)日：1996-06-18

申请号：JP29948494

申请日：1994-12-02

Applicant: MATSUSHITA REFRIGERATION

Inventor： KOBAYASHI MASANORI

IPC: F04C29/02 ,  F04C18/356

Abstract: PURPOSE: To provide a highly reliable compressor capable of constantly supplying sufficient lubricating oil to a large load part of a sliding part of a cylinder and a vane and preventing lowering of efficiency due to oil feeding failure even in the case of driving under a severe condition of high temperature and high pressure and that quantity of lubricating oil in the compressor decreases. CONSTITUTION: This is a rotary compressor furnished with an opening part 26 on a sliding part of a suction chamber side and a compression chamber side of a vane 6, inclined oil grooves 23a, 23b becoming deeper in a direction parting from the opening part 26 toward a contact part 27 of a roller 5 with the vane 6, an oil passage 25 one end of which is opened to the sliding part of the vane 6 and the other end of which is communication to the inclined oil grooves 23a, 23b, an oil basin part 19 provided on a vane groove sliding part of cylinder 4 and an oil feeding passage 21 one end of which is opened to an auxiliary bearing oil feeding part and the other end of which is communicated to the oil basin part 19.

公开(公告)号：JPH05288180A

公开(公告)日：1993-11-02

申请号：JP8356092

申请日：1992-04-06

Applicant: MATSUSHITA REFRIGERATION

Inventor： MORITA ICHIRO ,  YOSHIMURA TAKAO ,  KOBAYASHI MASANORI

IPC: F04C23/02 ,  F04C29/06

Abstract: PURPOSE:To provide a rotary compressor of low noise and vibration used for a refrigerating cycle or the like. CONSTITUTION:A first balance weight 20 and a second balance weight 2d are respectively disposed on the machine part 9 side and anti-machine part side of a rotor 2a, and a third balance weight 2e is disposed at a shaft 3 on the auxiliary bearing 8 side. A plane, vertical to the shaft 3 passing the center-of- gravity of a roller 5 is made the plane I, and a plane vertical to the shaft 3 passing the center-of-gravity of the first balance weight 2c is made the plane II. A plane vertical to the shaft 3 passing the center-of-gravity of the second balance weight 2d is made the plane III, and a plane vertical to the shaft 3 passing the center-of-gravity of the third balance weight 2e is made the plane IV. The distance between the plane I and plane II is made L1, the distance between the plane II and plane III is made L2, and the distance between the plane I and plane IV is made L3 so as to determine the mass, shape, fixing positions, and the like of the first, second and third balance weights 2c, 2d, 2e.