EP 1137888 B1 20030507 - HYDRAULIC DISTRIBUTOR
Title (en)
HYDRAULIC DISTRIBUTOR
Title (de)
HYDRAULISCHES WEGEVENTIL
Title (fr)
DISTRIBUTEUR HYDRAULIQUE
Publication
Application
Priority
- FR 9903052 W 19991208
- FR 9815523 A 19981209
Abstract (en)
[origin: US6532989B1] A hydraulic distributor that has a regulating balance including a housing hollowed in the distributor body and containing coaxially a fixed central core. A tubular plunger is interposed sliding freely, coaxially, between the core and the housing and co-operates with a lateral orifice connected to a working orifice. The core and the plunger define between them an annular chamber. The plunger has a first radial annular surface subjected to the highest charge pressure (LS) and a second annular surface subjected to the pressure of the intake fluid. A central passage in the core constitutes a first orifice emerging at one end of the housing exposed to the highest charge pressure (LS). A second orifice emerges in the annular chamber and a third orifice is located opposite the other end of the housing and remains closed by the plunger as long as the charge pressure of the distributor is below the highest charge pressure (LS).
IPC 1-7
IPC 8 full level
F15B 13/042 (2006.01); F15B 11/02 (2006.01); F15B 13/04 (2006.01); F16K 11/07 (2006.01); F16K 17/22 (2006.01)
CPC (source: EP US)
F15B 13/0407 (2013.01 - EP US); F15B 13/0417 (2013.01 - EP US); Y10T 137/7851 (2015.04 - EP US); Y10T 137/87169 (2015.04 - EP US); Y10T 137/87185 (2015.04 - EP US)
Designated contracting state (EPC)
AT DE GB IT SE
DOCDB simple family (publication)
US 6532989 B1 20030318; AT E239875 T1 20030515; DE 69907730 D1 20030612; DE 69907730 T2 20040318; EP 1137888 A1 20011004; EP 1137888 B1 20030507; FR 2787148 A1 20000616; FR 2787148 B1 20010216; JP 2002531793 A 20020924; JP 4603166 B2 20101222; WO 0034665 A1 20000615
DOCDB simple family (application)
US 85758601 A 20010907; AT 99957372 T 19991208; DE 69907730 T 19991208; EP 99957372 A 19991208; FR 9815523 A 19981209; FR 9903052 W 19991208; JP 2000587087 A 19991208