EP 1067294 A3 20030604 - Filter bypass for hydraulic systems
Title (en)
Filter bypass for hydraulic systems
Title (de)
Filterumleitung eines hydraulischen Systems
Title (fr)
Dérivation du filtre dans un système hydraulique
Publication
Application
Priority
DE 19932097 A 19990709
Abstract (en)
[origin: EP1067294A2] The system delivers a part of the pressurised fluid from the pump (7) directly to the consumer (8) below a previously defined temperature, independently of a pressure level in front of the filter unit. Above a determined pressure level, the supplied fluid is delivered through the filter unit to the consumer. A valve between the filter unit and the pump is operates a slider (2) through an element (1), whose volume changes with temperature, to connect the pump and the filter unit or the consumer.
IPC 1-7
IPC 8 full level
F15B 21/045 (2019.01); F15B 21/041 (2019.01)
CPC (source: EP)
F15B 21/041 (2013.01); F15B 21/045 (2013.01)
Citation (search report)
- [XY] US 2672984 A 19540323 - RUSSELL JOHN K
- [AY] US 5516042 A 19960514 - GERSTENGERGER GERALD [US]
- [A] US 4036433 A 19770719 - WAGNER JOSEPH P, et al
- [A] US 4344564 A 19820817 - MAGNUSON RUEL D
- [A] US 2965120 A 19601220 - SNYDER KENNETH E
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 1067294 A2 20010110; EP 1067294 A3 20030604; DE 19932097 A1 20010111
DOCDB simple family (application)
EP 00113963 A 20000701; DE 19932097 A 19990709