Global Patent Index - EP 2024622 A1

EP 2024622 A1 2009-02-18 - METHOD AND SYSTEM OF CONTINUOUS CONTROL OF THE POSITION OF AN ACTUATOR FOR CHANGING THE COMPRESSION RATE OF A THERMIC ENGINE

Title (en)

METHOD AND SYSTEM OF CONTINUOUS CONTROL OF THE POSITION OF AN ACTUATOR FOR CHANGING THE COMPRESSION RATE OF A THERMIC ENGINE

Title (de)

VERFAHREN UND SYSTEM ZUR KONTINUIERLICHEN KONTROLLE DER POSITION EINES AKTUATORS ZUM ÄNDERN DER KOMPRESSIONSRATE EINES WÄRMEMOTORS

Title (fr)

PROCEDE ET SYSTEME DE PILOTAGE CONTINU DE LA POSITION D'UN ACTIONNEUR DE CHANGEMENT DE TAUX DE COMPRESSION D'UN MOTEUR THERMIQUE

Publication

EP 2024622 A1 (FR)

Application

EP 07788951 A

Priority

  • FR 2007051115 W
  • FR 0605051 A

Abstract (en)

[origin: WO2007141434A1] The control system allows continuous adjustment of the position of an actuator jack used to change the compression rate of a heat engine, with mechanical-type regulation. A source of pressurised fluid (S) is linked to a circuit to allow movement of the jack (2) in two opposing directions. A servo-control device (4) connected to the jack (2) includes means of distribution (V) of fluid to control the position of a mobile element of the jack (21). A lever (3) articulated with the mobile element of the jack (21) in an initial articulation point (31) includes a second articulation point (32) with a mobile control unit (40) in transfer controlling the means of distribution (v). The lever (3) is able to turn around the initial articulation point (31) via the action of control means (1) moving the driver assembly (12) of the lever (3), connected to a third articulation point (33) at the opposite end.

IPC 8 full level (invention and additional information)

F02D 15/02 (2006.01); F02B 75/04 (2006.01); F15B 15/20 (2006.01)

CPC (invention and additional information)

F02B 75/045 (2013.01); F02D 15/02 (2013.01)

Citation (search report)

See references of WO 2007141434A1

Designated contracting state (EPC)

AT BE BG CH CY CZ DE DK EE ES FI FR GB GR HU IE IS IT LI LT LU LV MC MT NL PL PT RO SE SI SK TR

Designated extension state (EPC)

AL BA HR MK RS

DOCDB simple family

WO 2007141434 A1 20071213; AT 458138 T 20100315; DE 602007004844 D1 20100401; EP 2024622 A1 20090218; EP 2024622 B1 20100217; FR 2902145 A1 20071214; FR 2902145 B1 20080808; JP 2009540187 A 20091119; US 2010294244 A1 20101125