EP 0219635 B1 19900411 - HAND-OPERATED PUMP FOR FEED PUMPS OF FUEL INJECTION SYSTEMS FOR INTERNAL-COMBUSTION ENGINES
Title (en)
HAND-OPERATED PUMP FOR FEED PUMPS OF FUEL INJECTION SYSTEMS FOR INTERNAL-COMBUSTION ENGINES
Publication
Application
Priority
DE 3534485 A 19850927
Abstract (en)
[origin: US4747760A] A pump for feed-pumps of fuel injection systems for internal combustion engines having a manually actuatable element, which operates counter to the force of a restoring spring to effect an inward stroke of a piston which includes a valve tappet thereon that pushes open a ball valve to the fuel feeding system of a feed pump. In operation, a medium is positively displaced from a work chamber into the feeding system. Upon an automatic return stroke of the piston, a medium is aspirated from the fuel feeding system of the feed pump into the work cylinder and at the end of the return stroke the ball valve closes automatically. In its position of repose, the pump does not require its piston to be locked in place, and pressure impacts of the feed pump are prevented from reaching the piston.
IPC 1-7
IPC 8 full level
F02M 37/16 (2006.01); F02M 37/18 (2006.01); F02M 37/20 (2006.01); F04B 9/14 (2006.01)
CPC (source: EP US)
F02M 37/16 (2013.01 - EP US); F04B 9/14 (2013.01 - EP US)
Citation (examination)
Druckschrift der Robert Bosch GmbH, Stuttgart "Bosch Technische Unterrichtung-Diesel-Einspritzausrüstung (1)",VDT-UBP 001/15, S. 26, 2. Ausgabe, 30.04.73
Designated contracting state (EPC)
DE GB IT
DOCDB simple family (publication)
EP 0219635 A1 19870429; EP 0219635 B1 19900411; DE 3534485 A1 19870402; DE 3670345 D1 19900517; JP H0792027 B2 19951009; JP S6282267 A 19870415; US 4747760 A 19880531
DOCDB simple family (application)
EP 86111244 A 19860814; DE 3534485 A 19850927; DE 3670345 T 19860814; JP 22634986 A 19860926; US 89314086 A 19860805