EP 3722617 A1 20201014 - HYDRAULIC CIRCUIT
Title (en)
HYDRAULIC CIRCUIT
Title (de)
HYDRAULIKKREISLAUF
Title (fr)
CIRCUIT HYDRAULIQUE
Publication
Application
Priority
EP 19425025 A 20190408
Abstract (en)
The present document relates to a hydraulic circuit (1; 100), comprising: a fluid reservoir (2), a fluid output port (7a), a first hydraulic pump (3) having a first fluid port (3a) and a second fluid port (3b), the first fluid port (3a) of the first hydraulic pump (3) selectively fluidly connected with the fluid reservoir (2), and the second fluid port (3b) of the first hydraulic pump (3) fluidly connected or selectively fluidly connected with the fluid output port (7a), a hydraulic accumulator (6), and at least one accumulator valve (14a, 14b). The at least one accumulator valve (14a, 14b) is configured to be selectively placed in either one of a first configuration and a second configuration, the at least one accumulator valve (14a, 14b) in the first configuration fluidly connecting the hydraulic accumulator (6) with the first fluid port (3a) of the first hydraulic pump (3) and fluidly disconnecting the hydraulic accumulator (6) from the fluid output port (7a), and the at least one accumulator valve (14a, 14b) in the second configuration fluidly connecting or selectively fluidly connecting the hydraulic accumulator (6) with the fluid output port (7a) and fluidly disconnecting the hydraulic accumulator (6) from the first fluid port (3a) of the first hydraulic pump (3). The present document further relates to methods of controlling the hydraulic circuit (1; 100).
IPC 8 full level
F15B 1/02 (2006.01); F15B 11/17 (2006.01); F15B 21/14 (2006.01)
CPC (source: EP)
F15B 1/024 (2013.01); F15B 11/17 (2013.01); F15B 21/14 (2013.01); F15B 2211/20515 (2013.01); F15B 2211/20523 (2013.01); F15B 2211/20569 (2013.01); F15B 2211/20576 (2013.01); F15B 2211/212 (2013.01); F15B 2211/6306 (2013.01); F15B 2211/6309 (2013.01); F15B 2211/88 (2013.01)
Citation (applicant)
WO 2015117962 A1 20150813 - DANA ITALIA SPA [IT]
Citation (search report)
- [XA] US 2007186548 A1 20070816 - SMITH DAVID P [US], et al
- [XA] EP 3159456 A1 20170426 - CNH IND ITALIA SPA [IT]
- [XA] US 10100847 B2 20181016 - WU CHUNNAN [JP]
- [XA] US 2003213238 A1 20031120 - SMITH DAVID P [US]
- [XAI] US 9745972 B2 20170829 - KRITTIAN LUKAS [DE], et al
- [XAY] WO 2012125798 A1 20120920 - LOWMAN ROGER [US], et al
- [Y] CN 108953419 A 20181207 - HANGCHA GROUP CO LTD
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
Designated extension state (EPC)
BA ME
DOCDB simple family (publication)
DOCDB simple family (application)
EP 19425025 A 20190408