EP 2920436 B1 20170712 - VANE TYPE PHASING DEVICE WITH ELECTROMAGNETICALLY ACTUATED CONTROL VALVE
Title (en)
VANE TYPE PHASING DEVICE WITH ELECTROMAGNETICALLY ACTUATED CONTROL VALVE
Title (de)
SCHWENKMOTORVERSTELLER MIT EINEM ELEKTROMAGNETISCH BETÄTIGTEN HYDRAULIKVENTIL
Title (fr)
DEPHASEUR À PALETTES RADIALES COMPRENANT UNE VANNE DE COMMANDE ELECTROMAGNÉTIQUE
Publication
Application
Priority
- DE 102012111033 A 20121116
- DE 2013200300 W 20131114
Abstract (en)
[origin: WO2014075675A1] The invention relates to an oscillating motor camshaft adjuster (14) with an electromagnetically actuated hydraulic valve (12) that has a hollow piston (19) inserted into a bore (85) and longitudinally displaceable by means of an electromagnet (100), which hollow piston (19) is intended for distributing hydraulic fluid to two pressure chambers (9, 10) of the working connections (A, B) assigned to the oscillating motor camshaft adjuster (14). The first working connection (A) branches off from the bore (85) directly adjacent to the electromagnet (100). The hollow piston (19) has a circumferential stay with a control edge (107) facing the electromagnet (100). Thus a space (103) inside the bore (85) is bordered by the stay (102) and the electromagnet (100). A run-off opening (104) is provided in the hollow channel (19) between the stay (102) and the electromagnet (100). This run-off opening (104) hydraulically connects the space (103) to a run-off channel (105) leading to a tank drain (T) inside the hollow piston (19). The stay (102) can be displaced in a direction extending the first working connection (A) in the flow cross-section (106) by means of a force (F-M) of the electromagnet (100) supplied with current. This force (F-M) is directed counter to an elastic force (F-F) that presses the stay (102) in the direction reducing the flow cross-section (106). A throttle point (108) is provided at the stay (102), which throttle point (108) is arranged between the flow cross-section (106) and the space (103). Thus a high control quality is achieved.
IPC 8 full level
F01L 1/344 (2006.01)
CPC (source: CN EP US)
F01L 1/3442 (2013.01 - CN EP US); F01L 2001/34423 (2013.01 - US); F01L 2001/34426 (2013.01 - CN EP US); F01L 2001/3443 (2013.01 - CN EP US); F01L 2001/34433 (2013.01 - EP US); F01L 2001/3445 (2013.01 - US); F01L 2001/34483 (2013.01 - US)
Designated contracting state (EPC)
AL AT BE BG CH CY CZ DE DK EE ES FI FR GB GR HR HU IE IS IT LI LT LU LV MC MK MT NL NO PL PT RO RS SE SI SK SM TR
DOCDB simple family (publication)
DE 102012111033 A1 20140522; CN 104704207 A 20150610; CN 104704207 B 20171117; DE 112013005475 A5 20150827; DE 112013005475 B4 20171109; EP 2920436 A1 20150923; EP 2920436 B1 20170712; US 2015330267 A1 20151119; US 9631525 B2 20170425; WO 2014075675 A1 20140522
DOCDB simple family (application)
DE 102012111033 A 20121116; CN 201380046410 A 20131114; DE 112013005475 T 20131114; DE 2013200300 W 20131114; EP 13826718 A 20131114; US 201514696470 A 20150426