EP 3724501 A1 20201021 - FUEL DELIVERY DEVICE FOR CRYOGENIC FUELS
Title (en)
FUEL DELIVERY DEVICE FOR CRYOGENIC FUELS
Title (de)
KRAFTSTOFFFÖRDEREINRICHTUNG FÜR KRYOGENE KRAFTSTOFFE
Title (fr)
DISPOSITIF D'ALIMENTATION EN CARBURANT POUR CARBURANTS CRYOGÉNIQUES
Publication
Application
Priority
- DE 102017012218 A 20171211
- EP 2018080447 W 20181107
Abstract (en)
[origin: WO2019115097A1] The invention relates to a fuel delivery device for cryogenic fuels, comprising a piston pump (1) for delivering the cryogenic fuel at a high pressure, said piston pump (1) having a pump piston (2) that can be moved back and forth and delimits a compression chamber (3) at one end and a pressure chamber (5), which is formed in a hollow cylinder (4) and to which a hydraulic pressure medium can be supplied, at the other end. According to the invention, the pump piston (2) has an annular shoulder (6) for delimiting an additional pressure chamber (7) which is formed in the hollow cylinder (4) and to which the hydraulic pressure medium can likewise be supplied in order to reset the pump piston (2). The additional pressure chamber (7) is coupled to an accumulator volume (8) which is delimited by an accumulator sleeve (9) that is arranged on the hollow cylinder (4) in a movable manner back and forth and is biased by means of a return spring (10).
IPC 8 full level
F04B 9/105 (2006.01); F02M 21/02 (2006.01); F04B 15/08 (2006.01)
CPC (source: EP)
F02M 21/0245 (2013.01); F02M 59/105 (2013.01); F04B 9/105 (2013.01); F04B 9/1053 (2013.01); F04B 15/08 (2013.01); F04B 2015/081 (2013.01)
Citation (search report)
See references of WO 2019115097A1
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)
DE 102017012218 A1 20190613; CN 111527308 A 20200811; CN 111527308 B 20220719; EP 3724501 A1 20201021; EP 3724501 B1 20211103; WO 2019115097 A1 20190620
DOCDB simple family (application)
DE 102017012218 A 20171211; CN 201880079940 A 20181107; EP 18800579 A 20181107; EP 2018080447 W 20181107