公开(公告)号：JPS63134873A

公开(公告)日：1988-06-07

申请号：JP28020786

申请日：1986-11-25

Applicant: MATSUSHITA REFRIGERATION

Inventor： KAWAI HIDEKI ,  SASANO HIROSHI ,  OTA TOSHIHIKO

IPC: F04B39/00

Abstract: PURPOSE:To permit the perfect supply of oil onto a spherical body and a spherical seat by forming the recessed oil grooves onto the spherical seat and supplying oil onto the top edge part of the spherical body and the spherical seat. CONSTITUTION:An oil reservoir 15 is formed at the center part of a spherical seat 14. Recessed oil grooves 16 are formed radially onto the spherical seat 14. With such constitution, the oil supplied from an oil hole 9a opened onto the side surface of a spring 9 is supplied onto the spherical seat 14, generating a hydraulic pressure, by the movement of a spherical body 8, and introduced into the oil reservoir 15. Therefore, oil can be supplied perfectly onto the top edge part of the spherical body 8 and the spherical seat 14.

公开(公告)号：JPS6329076A

公开(公告)日：1988-02-06

申请号：JP17208186

申请日：1986-07-22

Applicant: MATSUSHITA REFRIGERATION

Inventor： SASANO HIROSHI ,  KAWAI HIDEKI ,  OOTA TOSHIHIKO

IPC: F04B39/02

Abstract: PURPOSE:To make it possible to feed refrigerator oil into a cylinder chamber in a closed motor compressor for a refrigerator, by forming a through-hole communicating between the cylinder chamber and a space below the level of refrigerator oil, in a cylinder in the vicinity of the bottom dead center of the piston. CONSTITUTION:A through-hole 32 communicating between a cylinder chamber 9a and a space below the level of refrigerator oil 11, is formed in a cylinder 9 in the vicinity of the bottom dead center thereof. Further coolant gas is introduced into a cylinder chamber 9a from a suction chamber 7a in a cylinder head 7 through a suction hole 8a in a valve plate 8 so that the gas is compressed by a piston 6 to be discharged into a discharge chamber 7b through a discharge hole 8b. When the piston 6 moves toward the bottom dead center to suck the gas, the pressure of the cylinder chamber 9a is lowered to produce a pressure differential so that the refrigerator oil 11 is introduced. However, since the through-hole 32 is made to be near to the bottom dead center, no extreme pressure differential is produced so that a suitable amount of the refrigerator oil 11 is introduced into the cylinder chamber 9a. Thus, it is possible to eliminate the use of a capillary tube and a plug so that rationalization may be attained.

公开(公告)号：JPS631775A

公开(公告)日：1988-01-06

申请号：JP14536386

申请日：1986-06-20

Applicant: MATSUSHITA REFRIGERATION

Inventor： KAWAI HIDEKI ,  YAMAMOTO YASUHIRO ,  SASANO HIROSHI ,  OOTA TOSHIHIKO

IPC: F04B39/00

Abstract: PURPOSE:To enable easy provision of parallelism of a compressor element to the attaching surface of an electric motor element, by a method wherein leg members, adapted to attach the electric motor element thereto, are secured to a frame formed by a laminar material. CONSTITUTION:A frame 14 is formed by a laminar material, and leg members 15, adapted to attach a fixer 22, being an electric motor element 20, thereto, are secured to the frame 14. If after, the leg members 15 are attached to the frame 14, machining, e.g. cutting, is applied on the attaching surface of the fixer 22 of the leg member 15, spring back is prevented from occurring to a cut surface, and uniform parallelism between the attaching surface of a compressor element 13 of the frame 14 and the attaching surface of the fixer 22 is provided. This constitution enables provision of a uniform gap between the fixer 22 and a rotor 21, reduces production of vibration of a compressor, and provides stable startability.

公开(公告)号：JPS62147065A

公开(公告)日：1987-07-01

申请号：JP28866185

申请日：1985-12-20

Applicant: MATSUSHITA REFRIGERATION

Inventor： KAWAI HIDEKI

IPC: F04B39/00 ,  F04B39/12

Abstract: PURPOSE:To improve volume efficiency by constituting monolithically the coolant suction port of a sealed vessel, a suction muffler, a suction chamber, a delivery chamber and a passage for leading suction gases from the coolant suction port to the suction chamber. CONSTITUTION:A cylinder head comprises covers A and B. The cover B is formed with a delivery chamber 1, a suction chamber 2, a suction muffler chamber 4, a suction coolant passage 3 and a coolant suction port 5. Coolant gases cool a cylinder head suction port 5 and a cylinder head 11, pass through the coolant passage 3 and the suction muffler chamber 4, and are finally sucked into the suction chamber 2. Consequently, cooling gases for the cylinder head 11 and the return gases thereof are mixed with gases in a sealed vessel and reach the suction chamber 2 without any temperature rise up to a high level, thereby enabling the improvement of volume efficiency.

公开(公告)号：JPS58160571A

公开(公告)日：1983-09-24

申请号：JP4427182

申请日：1982-03-18

Applicant: MATSUSHITA REFRIGERATION

Inventor： KAWAI HIDEKI ,  NAKAOKA MASASHI ,  NISHIHARA HIDETOSHI ,  HAMADA KOUJI

IPC: F04B39/00 ,  F04B39/12

Abstract: PURPOSE:To reduce transmission of solid vibration by providing a suction pipe extending through an enclosing armor, an insert pipe inserted into a muffler and a tight coil spring fitted between both pipes to prevent suction refrigerant gas returning to the enclosing armor from contacting a high temperature motor compression element. CONSTITUTION:A suction gas introducing path 12 is constituted from a suction pipe 13, tight coil spring 14, insert pipe 15 and suction muffler 16 connected to each other, and insulated from heat generated by a motor element 2 and a compression element 3 in an enclosing armor 1. Thus, suction gas is sucked directly into the suction muffler 16 without being exposed to high temperature atmosphere. Also, since the suction muffler 16 is connected to the suction pipe 13 through the insert pipe 15 by the tight coil spring 14, they can follow up the relative movement of elements in a compressor in the directions of normal and vertical lines to reduce the transmission of vibration from the internal elements. Also, an inlet port 16a and the insert pipe 15 produce a bearing force P due to torsional moment M to reduce vibratory sound between the inlet port and the insert pipe.

公开(公告)号：JPH06345915A

公开(公告)日：1994-12-20

申请号：JP13736993

申请日：1993-06-08

Applicant: YOKOHAMA RUBBER CO LTD ,  MATSUSHITA REFRIGERATION

Inventor： OGUSHI MASAMI ,  KAWAI HIDEKI

IPC: B32B25/02 ,  B32B25/10 ,  C08K3/04 ,  C08K5/01 ,  C08L23/16 ,  C08L23/22 ,  F16J15/10

Abstract: PURPOSE:To obtain a rubber compsn. most suitable for producing a rubber part for a cooling apparatus filled with a hydrochlorofluorocarbon (CH2FCF3) and an oil compatible therewith by using a specific nonpolar rubber as the rubber component of the compsn., and to provide the rubber part for cooling apparatus. CONSTITUTION:This rubber compsn. is prepd. by using a nonpolar rubber, i.e., an ethylene-propylene copolymer or terpolymer rubber or butyl rubber, as the rubber component. Carbon block, an org. peroxide, and if necessary, an extender oil and/or a cross-linking aid are compounded with the ethylene- propylene copolymer or terpolymer rubber, pref. only carbon black and org. compds. being used. In the case of butyl rubber, it is compounded with carbon black and a resinous vulcanizing agent, pref. only org. compds. being used. This compsn. is molded into a rubber part for cooling apparatus or is impregnated into or laminated with a woven or nonwoven fabric, paper, etc., to give the part.

公开(公告)号：JPH06323266A

公开(公告)日：1994-11-22

申请号：JP11446893

申请日：1993-05-17

Applicant: MATSUSHITA REFRIGERATION

Inventor： AWASHIMA HIROKI ,  KAWAI HIDEKI

IPC: F04C2/356 ,  F04C15/00 ,  F04C15/06

Abstract: PURPOSE:To provide a liquid refrigerant transport device which reduces a load on an electric motor and sliding parts due to liquid compression by increasing a delivery part. CONSTITUTION:A liquid refrigerant transport device comprises a shaft 5, a roller 6 fixed to the eccentric part of the shaft 5, a cylinder 7 which houses the roller 6, is provided with a delivery port larger than a suction port 16 or provided with a groove larger in volume than the suction port 16, and has a notch 19 extending from a groove where a vane 15 is housed to a delivery part 18, the vane 15 which is housed in the groove of the cylinder 7 and of which a tip is pressed against the outer periphery of the roller 6, and main and auxiliary bearings 8 and 9 which support the shaft 5 and are provided with delivery ports 10, respectively.

公开(公告)号：JPH06264868A

公开(公告)日：1994-09-20

申请号：JP5047693

申请日：1993-03-11

Applicant: MATSUSHITA REFRIGERATION

Inventor： OZAKA MASAHIKO ,  SAEKI YUJI ,  KAWAI HIDEKI ,  WADA SATOSHI

IPC: F04B39/00

Abstract: PURPOSE:To provide a sealed compressor used for the refrigerating cycle of a refrigerator, requiring a low input, and having high reliability. CONSTITUTION:A sealed container 21 stores an electric element 22 and a compression element 23. A crank shaft 24 has an eccentric section 25, and an upper bearing 26 and a lower bearing 27 are arranged above and below the eccentric section 25. A holder 28a has a thick section 28c over the whole periphery of a bearing holding section 28b, it is fixed to the compression element 23 via the fixing sections 28d, 28e on a cylinder 29 side and a fixing section on the compression stroke side according to the rotating direction of the crank shaft 24, and the center surface 32 perpendicular to the axial direction 31 of the upper bearing 26 is formed on the upper side of the axial direction 31 against a plane 30 formed by the fixing sections 28d, 28e.

公开(公告)号：JPH05288155A

公开(公告)日：1993-11-02

申请号：JP8356692

申请日：1992-04-06

Applicant: MATSUSHITA REFRIGERATION

Inventor： OZAKA MASAHIKO ,  KAWAI HIDEKI ,  SAEKI YUJI ,  WADA SATOSHI

IPC: F04B39/00 ,  F04B39/12

Abstract: PURPOSE:To provide a closed type compressor of low noise and low vibration in the refrigerating cycle of a refrigerator or the like. CONSTITUTION:In a closed container 14 provided internally with a motor-driven element 5 and a compression element 6, an upper cover 11 and a lower container 12 are mutually connected by the welding edge 13 of the lower container 12. A plane X having the welding edge 13 within the plane is orthogonal to planes Y17, Z18 having, within the planes, a centerline 15 which has, within the line, the center point of an optional curved face forming the upper face of the upper cover 11 and the center point of an optional curved face forming the bottom face of the lower container 12. An optional curve C19 forming the closed container 14 is formed of asymmetric curvature as and line segment length unequal to CX20, CY21, CZ22 existing in the positions symmetric to the respective planes X16, Y17, Z18.

公开(公告)号：JPH05164049A

公开(公告)日：1993-06-29

申请号：JP33311191

申请日：1991-12-17

Applicant: MATSUSHITA REFRIGERATION

Inventor： WADA SATOSHI ,  KAWAI HIDEKI ,  SAEKI YUJI ,  OZAKA MASAHIKO

IPC: F04B39/10

Abstract: PURPOSE:To improve a volumetric efficiency by using a spherical delivery valve, and also reduce noise in a valve device of a reciprocating compressor used in a refrigerator and so on. CONSTITUTION:A valve device for a reciprocating compressor is composed of a recess part 21 formed in a valve plate 4, a resinous sheet 22 fitted in the recess part 21, a delivery valve seat 24 arranged on the sheet 22, a spherical delivery valve 25, a valve presser 26 having an inner surface shape in conformity with a shape of the delivery valve 25, a coil spring 27 and a holder 28 into which the delivery valve 25, the valve presser 26 and the coil spring 27 are embedded/inserted.