EP 0075053 B1 19861217 - WEAR-RESISTING MEANS FOR SCROLL-TYPE FLUID-DISPLACEMENT APPARATUSES
Title (en)
WEAR-RESISTING MEANS FOR SCROLL-TYPE FLUID-DISPLACEMENT APPARATUSES
Publication
Application
Priority
EP 81304364 A 19810922
Abstract (en)
[origin: EP0075053A1] A scroll type fluid displacement apparatus having a pair of scroll members (28, 30) each comprising an end plate (281, 301) and a spiral wrap (282, 302) extending from one side of the end plate. The spiral wraps interfit at an angular and radial offset to make a plurality of line contacts to define at least one pair of sealed-off fluid pockets. At least one of the scroll members (28) is provided with an anti-wear plate (40) at its end surface facing the other scroll member. The anti-wear plate is an insolute plate that covers those areas of the end surface of the end plate where the spiral wrap of the other scroll member makes contact during the orbital motion of the orbiting scroll member. An elastic plate can also be used between the anti-wear plate and the end surface of the end plate to give axial preload to the end surface of the spiral wrap of the other scroll member. The anti-wear plate prevents excessive wear while ensuring axial sealing. Therefore, the axial sealing of the fluid pockets is secured and wear of the scroll member is minimized.
IPC 1-7
IPC 8 full level
F01C 1/02 (2006.01); F01C 21/10 (2006.01); F04C 27/00 (2006.01)
CPC (source: EP)
F01C 1/0215 (2013.01); F01C 21/104 (2013.01); F04C 27/005 (2013.01); F04C 2230/00 (2013.01); F04C 2240/801 (2013.01); F05B 2230/00 (2013.01)
Citation (examination)
EP 0061065 A2 19820929 - SANDEN CORP [JP]
Designated contracting state (EPC)
DE FR GB IT SE
DOCDB simple family (publication)
EP 0075053 A1 19830330; EP 0075053 B1 19861217; DE 3175720 D1 19870129
DOCDB simple family (application)
EP 81304364 A 19810922; DE 3175720 T 19810922