EP 0263199 B1 19910717 - MEMBRANE COMPRESSOR
Title (en)
MEMBRANE COMPRESSOR
Publication
Application
Priority
EP 86114036 A 19861010
Abstract (en)
[origin: EP0263199A1] A diaphragm compressor has a compressor housing (1) comprising a bottom section (2) and an upper section (3). A flexible diaphragm (5) is inserted between a bottom diaphragm disc (7) and an upper diaphragm disc (8) and projects laterally. The diaphragm (5) is firmly clamped by its edge (6) between the bottom section (2) and upper section (3) of the housing. A connecting rod (12) produces a lifting motion of the diaphragm (5) and the adjacent diaphragm discs (7, 8). This compresses a medium in a working chamber (15). Below the diaphragm (5) is a piston chamber (18) in the lower section (2) of the housing. The diameter of the working chamber (15) formed in the upper section (3) of the housing has a greater diameter than the piston chamber (18). The diameter of the bottom diaphragm disc (7) is distinctly smaller than the diameter of the piston chamber (18). As a result an annular gap (20) is left between the bottom diaphragm disc (7) and the opposing inside wall of the bottom section (2) of the housing. The diameter of the upper diaphragm disc (8) is thereby at least equal to that of the bottom diaphragm disc (7). The clearance (19) produced at the top dead centre between the upper section (3) of the housing, diaphragm (5) and upper diaphragm disc (8) takes the form of an annular duct and is greatly offset outward in a radial direction in the area of the edge (6) of the diaphragm (5). The proposed diaphragm compressor is outstanding by virtue of an improved characteristic behaviour. The increase in pressure given a reduction in the volume flow occurs much more slowly; the fluctuation in the maximum pressure which can be generated in the working chamber (15) is much less. <IMAGE>
IPC 1-7
IPC 8 full level
F04B 45/04 (2006.01)
CPC (source: EP US)
F04B 45/04 (2013.01 - EP US)
Designated contracting state (EPC)
AT BE CH DE ES FR GB GR IT LI LU NL SE
DOCDB simple family (publication)
EP 0263199 A1 19880413; EP 0263199 B1 19910717; EP 0263199 B2 19951004; AT E65299 T1 19910815; DE 3680339 D1 19910822
DOCDB simple family (application)
EP 86114036 A 19861010; AT 86114036 T 19861010; DE 3680339 T 19861010