EP 0907022 A3 20010620 - Device for avoiding disturbing back expansion in a piston compressor
Title (en)
Device for avoiding disturbing back expansion in a piston compressor
Title (de)
Vorrichtung zur Vermeidung störender Rückexpansion bei Kolbenverdichter
Title (fr)
Dispositif pour éviter des retours de détente gênants dans un compresseur à piston
Publication
Application
Priority
DE 19743444 A 19971001
Abstract (en)
[origin: EP0907022A2] The compression chamber is connected to the atmosphere via a valve (7) located in the piston head (8). The valve is lifted by a cam (9) fastened to the eye (11) of a connecting rod (5). The valve has a shaft and a plate, which is pressed by a compression spring against a valve seat with bores in the piston head. The spring supports itself against the piston head and against a spring plate fastened to the valve shaft.
IPC 1-7
IPC 8 full level
F04B 39/00 (2006.01)
CPC (source: EP)
F04B 39/0016 (2013.01)
Citation (search report)
- [AD] DE 3902658 A1 19900802 - KNORR BREMSE AG [DE]
- [A] DE 229229 C
- [A] US 1607478 A 19261116 - EDWIN PRESTAGE
- [A] GB 248595 A 19260311 - LEON DE VOOGHT
Designated contracting state (EPC)
AT BE CH CY DE DK ES FI FR GB GR IE IT LI LU MC NL PT SE
DOCDB simple family (publication)
EP 0907022 A2 19990407; EP 0907022 A3 20010620; DE 19743444 A1 19990408; DE 19743444 C2 19991216
DOCDB simple family (application)
EP 98117617 A 19980917; DE 19743444 A 19971001