Global Patent Index - EP 1420990 A1

EP 1420990 A1 20040526 - VALVE BOOSTER

Title (en)

VALVE BOOSTER

Title (de)

VENTILVERSTÄRKER

Title (fr)

SERVOMOTEUR A SOUPAPES

Publication

EP 1420990 A1 20040526 (FR)

Application

EP 02774860 A 20020730

Priority

  • FR 0202727 W 20020730
  • FR 0110617 A 20010808

Abstract (en)

[origin: FR2828467A1] The servo actuating rod (7) is connected to a transverse rod (90) which is able to pivot through small angles and has ends which are attached to first and second valves (61,62) in piston (5) seatings (51,52). At rest both valves are closed and the servo exerts no force but when the actuating rod moves left the second valve opens and the piston moves left due to the admitted atmospheric pressure (12) on the inside and a vacuum maintained on outside.

IPC 1-7

B60T 13/57

IPC 8 full level

B60T 13/57 (2006.01)

CPC (source: EP US)

B60T 13/57 (2013.01 - EP US)

Citation (search report)

See references of WO 03013928A1

Designated contracting state (EPC)

AT BE BG CH CY CZ DE DK EE ES FI FR GB GR IE IT LI LU MC NL PT SE SK TR

DOCDB simple family (publication)

FR 2828467 A1 20030214; FR 2828467 B1 20031024; EP 1420990 A1 20040526; JP 2004537468 A 20041216; US 2004195912 A1 20041007; WO 03013928 A1 20030220

DOCDB simple family (application)

FR 0110617 A 20010808; EP 02774860 A 20020730; FR 0202727 W 20020730; JP 2003518892 A 20020730; US 48643104 A 20040301