EP 0162157 A1 19851127 - A screw compressor incorporating a slide valve.
Title (en)
A screw compressor incorporating a slide valve.
Title (de)
Schraubenverdichter mit Schieber.
Title (fr)
Compresseur volumétrique à vis comportant un tiroir.
Publication
Application
Priority
EP 84303436 A 19840521
Abstract (en)
A slide valve type screw compresser having a slide valve (31) with a surface of chevron shape in section consisting of a couple of arcuately curved surfaces forming part of the inner wall surfaces of a rotor chamber (8) accommodating a pair of intermeshed male and female screws (6, 5) the slide valve (31) being slidable in the axial direction of the rotors for comminicating the rotor chamber with a suction port (11) through an opening with an adjustably variable area for volumetric control of the compressor, characterized in that: the slide valve (31) is retractably protruded into a suction casing at a fore end on the side of the suction port and has the opposite outer corner portions of the curved surfaces cut off at a predetermined angle with the longitudinal axis thereof to provide a substantially triangular section with a forwardly reduced width at the protruded fore end.
IPC 1-7
IPC 8 full level
F04C 18/16 (2006.01); F04C 28/12 (2006.01)
CPC (source: EP)
F04C 28/125 (2013.01)
Citation (search report)
- [A] DE 3221849 A1 19831215 - AERZENER MASCHF GMBH [DE]
- [A] DE 1118800 B 19611207 - SVENSKA ROTOR MASKINER AB
- [A] FR 1258651 A 19610414 - SVENSKA ROTOR MASKINER AB
- [A] FR 2279951 A1 19760220 - DUNHAM BUSH INC [US]
Designated contracting state (EPC)
DE FR GB SE
DOCDB simple family (publication)
EP 0162157 A1 19851127; EP 0162157 B1 19880810; DE 3473326 D1 19880915
DOCDB simple family (application)
EP 84303436 A 19840521; DE 3473326 T 19840521