公开(公告)号：DE69316149T2

公开(公告)日：1998-04-16

申请号：DE69316149

申请日：1993-10-21

Applicant: MATSUSHITA REFRIGERATION

Inventor： MANGYO MASAO ,  NAKAOKA SEISHI ,  YAKUSHI SHUICHI ,  ITO SHINYA ,  KAWASHIMA TAKAO ,  WADA SATOSHI ,  KAWAI HIDEKI

IPC: F04B39/16 ,  F04C18/356 ,  F25B43/00

Abstract: A porous filter (53,54) having a pore size of no more than 80 mu m is provided in a refrigerant flow passage of a refrigeration system (50). The filter (53,54) may be provided in a drier (51) provided in the refrigerant flow passage or in a separate filter casing (52) provided in the refrigerant flow passage. Alternatively, the filter (53,54) may be provided in the refrigerant flow passage within a sealed casing (6) of a refrigerant compressor (1) which is incorporated in the refrigeration system (50).

公开(公告)号：DE69316149D1

公开(公告)日：1998-02-12

申请号：DE69316149

申请日：1993-10-21

Applicant: MATSUSHITA REFRIGERATION

Inventor： MANGYO MASAO ,  NAKAOKA SEISHI ,  YAKUSHI SHUICHI ,  ITO SHINYA ,  KAWASHIMA TAKAO ,  WADA SATOSHI ,  KAWAI HIDEKI

IPC: F04B39/16 ,  F04C18/356 ,  F25B43/00

Abstract: A porous filter (53,54) having a pore size of no more than 80 mu m is provided in a refrigerant flow passage of a refrigeration system (50). The filter (53,54) may be provided in a drier (51) provided in the refrigerant flow passage or in a separate filter casing (52) provided in the refrigerant flow passage. Alternatively, the filter (53,54) may be provided in the refrigerant flow passage within a sealed casing (6) of a refrigerant compressor (1) which is incorporated in the refrigeration system (50).

公开(公告)号：JPH0763444A

公开(公告)日：1995-03-10

申请号：JP21165093

申请日：1993-08-26

Applicant: MATSUSHITA REFRIGERATION

Inventor： MANGYO MASAO ,  KAWASHIMA TAKAO ,  MORI YUJI

IPC: F25B45/00 ,  F25B41/00

Abstract: PURPOSE:To provide a cost-reduced refrigerating apparatus requiring less labor and capable of dealing with newly arising problems of combustibility by using hydrocarbon refrigerant and mineral oil or alkyl benzene. CONSTITUTION:A series of passages provided with a compressor 21, a condenser, an expansion system and an evaporator are formed, and a gas charge port tube 30 containing in a sealed condition refrigerating machine oil and refrigerant primary components of which are hydrocarbon and HFC-152a is crushed flat from a pinch part 31 to a tip end 34 to form a flat plate 32 so that a gas retainer is omitted. The tip end 34 is sealed by soldering.

公开(公告)号：JPH11303738A

公开(公告)日：1999-11-02

申请号：JP11047098

申请日：1998-04-21

Applicant: MATSUSHITA REFRIGERATION

Inventor： KAWABATA JUNTA ,  KAWASHIMA TAKAO ,  YOSHIMURA TAKAO

IPC: F04B39/00 ,  F04B39/02 ,  F16J1/02

Abstract: PROBLEM TO BE SOLVED: To improve the peeling resistance of a film when HFC-134 is used as a coolant and to reduce a noise by forming the phosphoric acid manganese chemical conversion film arranged with grains having different grain sizes in turn on the surface of the ferrous sliding components of a compressor used for an air conditioner. SOLUTION: When a shaft 4 pressed into a rotor 2 is rotated by a motor constituted of a rotor 2 and a stator 3, a piston 8 is reciprocated in a cylinder 12 via a connecting rod 5 fitted to the eccentric section of the shaft 4, and coolant gas is continuously sucked and compressed. The piston 8 made of a ferrous material having a phosphoric acid manganese chemical conversion film as a base material 15 is employed in this rotary compressor, and grains 13 with a small grain size and grains 14 with a large grain size are arranged in turn on the surface of the base material 15. The quantity of oil capable of being held on the phosphoric acid manganese chemical conversion film is increased as compared with the case that grains with a single grain size are arranged.

公开(公告)号：JPH08226395A

公开(公告)日：1996-09-03

申请号：JP32267795

申请日：1995-12-12

Applicant: MATSUSHITA REFRIGERATION

Inventor： KAWASHIMA TAKAO ,  WATAKABE SHUNZO

IPC: F04C18/356

Abstract: PURPOSE: To enhance the wear resistance of the sliding material of a closed type rotary compressor for use in a refrigeration device which uses HFC-134a, mixed refrigerants corresponding to CFC, or CFC-12 and in which either a lubricating oil composed chiefly of an ester compatible with the refrigerant or a noncompatible lubricating oil is sealed as refrigerator oil. CONSTITUTION: This closed type rotary compressor uses an iron type sliding material wherein a compound layer excellent in wear resistance and composed chiefly of either a crystal composition wherein the ratio of Cr2 to CrN in a mixed crystal system (Cr2 +CrN) is not more than 40%, or CrN crystals in a single crystal system is applied to the surface of either a vane or a roller.

公开(公告)号：JPH10288181A

公开(公告)日：1998-10-27

申请号：JP9348297

申请日：1997-04-11

Applicant: MATSUSHITA REFRIGERATION

Inventor： KAWABATA JUNTA ,  KAWASHIMA TAKAO

IPC: F04C29/00 ,  F04C18/356

Abstract: PROBLEM TO BE SOLVED: To improve abrasion resistance by determining the ratios of alumina ceramic, carbon and zirconia for specified ratios, respectively, in the composition ratio of powder composite material. SOLUTION: One of sliding members in a compression mechanism is made of cast iron and sintered materials. The other of the sliding members is made of a composite material of powder of alumina ceramic (Al2 O3 ) 78-84 wt.%, powder of carbon (C) 15-20 wt.% and powder of zirconia (ZrO2 ) 1-2 wt.%. The composite material of powder of alumina ceramic (Al2 O3 ), powder of carbon (C) and powder of zirconia (ZrO2 ) is made to have an action improving abrasion resistance by making the composite material have a composition ratio of alumina ceramics (Al2 O3 ) 78-84 wt.% carbon (C) 15-20 wt.% and zirconia (ZrO2 ) 1-2 wt.%.

公开(公告)号：JPH08284825A

公开(公告)日：1996-10-29

申请号：JP8385595

申请日：1995-04-10

Applicant: MATSUSHITA REFRIGERATION

Inventor： KAWABATA JUNTA ,  KAWASHIMA TAKAO

IPC: F04C29/00 ,  F04B39/00

Abstract: PURPOSE: To provide a highly reliable rotary compressor used for a refrigerant cycle, etc., by surface-treating its slide material so as to improve the abrasion resistance of the material. CONSTITUTION: In a rotary compressor, one of sliding materials is made of cast iron, iron-group sintered material or aluminum composite material, and the other one is made of iron-group material in which a composed layer made of solely CrN crystal or a compound layer in which CrN crystal and Cr2 N crystal are mixed and there is the CrN crystal of 50% or more is provided on the front surface.

公开(公告)号：JPH06288662A

公开(公告)日：1994-10-18

申请号：JP7782793

申请日：1993-04-05

Applicant: MATSUSHITA REFRIGERATION

Inventor： KAWASHIMA TAKAO ,  MANGYO MASAO

IPC: F25B43/00

Abstract: PURPOSE:To enhance the reliability of a refrigeration system and stabilize its performance by adsorbing acid, alcohol and generated gas produced by hydrolyzing of ester with zeolite and special aluminum. CONSTITUTION:A dryer 8 of a refrigeration system which encapsulates an oil which is mainly composed of HFC 134a and ester, is segmented into a molecular sheave C combined with a selection adsorbent and a single ingredient zeolite B and a single ingredient zeolite C with a wire netting filter 17 in the upper stream of a filter 13 in a main body 11.

公开(公告)号：JPH10131882A

公开(公告)日：1998-05-19

申请号：JP28637296

申请日：1996-10-29

Applicant: MATSUSHITA REFRIGERATION

Inventor： KAWABATA JUNTA ,  KAWASHIMA TAKAO

IPC: F04C29/00 ,  F04C18/356

Abstract: PROBLEM TO BE SOLVED: To improve wear resistance and seizure resistance by constituting one side of a slide material in a compression mechanism by a cost iron and iron system sintered material and its other side by a compound material of a titanium minute powder, chromium powder and nickel powder with a specific range rate. SOLUTION: A compression mechanism, refrigerant and refrigerator oil are internally equipped in a sealed up vessel and one side of a slide material in the compression mechanism is constituted by a cast iron and iron system sintered material. The other side is constituted by the compound material of 83-89wt.% of titanium minute powder, 3-5wt.% of chromium powder and 8-12wt.% of nickel powder. Thereby, in addition to the selection of a proper lubrication oil to increase the reliability of a rotary compressor, a slide material excellent in wear resistance can be achieved to supplement the lubrication oil of a refrigerant itself.

公开(公告)号：JPH07293464A

公开(公告)日：1995-11-07

申请号：JP8667594

申请日：1994-04-25

Applicant: MATSUSHITA REFRIGERATION

Inventor： KAWASHIMA TAKAO

IPC: F04C18/356

Abstract: PURPOSE:To improve reliability by improving abrasion resistance and seizure resistance of a vane or a roller, and also to improve efficiency by decreasing vibration. CONSTITUTION:In a rotary compressor to be used for a refrigerating cycle, a vane or a roller is constituted of an aluminum composite material wherein heat resistant quench solidifying aluminium powder is taken as a base material, and alumina ceramics particles and graphite whose dispersed particles are formed into spherical shape and thinned are added thereto a little and uniformly dispersed and solidified. Thereby reliability is improved by improving abrasion resistance and seizure resistance of the vane or the roller, and vibration is decreased by using materials having thermal expansion coefficient approximately equal to cast iron part materials for constituting a compression chamber, and lighter than the cast iron materials.