EP 1234975 A3 20040811 - High pressure piston cylinder unit
Title (en)
High pressure piston cylinder unit
Title (de)
Hochdruck-Kolbenzylindereinheit
Title (fr)
Unité cylindre-piston haute pression
Publication
Application
Priority
- EP 02405048 A 20020128
- EP 01810197 A 20010226
Abstract (en)
[origin: EP1234975A2] The high pressure piston/cylinder unit (1), and especially in the fuel pump for an internal combustion motor, has at least two lateral grooves (2c,2d) at the piston (2) or the cylinder drilling (3a), spaced apart in the piston sliding direction (V). The first groove (2c) gives a fluid flow connection with the fuel feed (3b) through a connecting channel (2b). The second groove (2d) gives a fluid flow link to the low pressure end (3d) through a connecting channel (2f). The lateral grooves are separated by a sealing length (D), which is shorter than the piston stroke length (F).
IPC 1-7
IPC 8 full level
F02M 59/44 (2006.01); F02M 59/00 (2006.01); F02M 59/26 (2006.01); F02M 63/00 (2006.01); F04B 53/08 (2006.01); F04B 53/14 (2006.01); F04B 53/18 (2006.01)
CPC (source: EP KR)
F02M 59/44 (2013.01 - EP KR); F02M 63/0001 (2013.01 - EP)
Citation (search report)
- [DA] WO 8910479 A1 19891102 - HEI TECH BV [NL]
- [A] WO 8911035 A1 19891116 - HEI TECH BV [NL]
- [A] AT 307808 B 19730612 - FRIEDMANN & MAIER AG
Designated contracting state (EPC)
AT BE CH CY DE DK ES FI FR GB GR IE IT LI LU MC NL PT SE TR
DOCDB simple family (publication)
EP 1234975 A2 20020828; EP 1234975 A3 20040811; EP 1234975 B1 20051102; CN 1280537 C 20061018; CN 1372074 A 20021002; DE 50204735 D1 20051208; DK 1234975 T3 20051205; JP 2002276508 A 20020925; JP 4111716 B2 20080702; KR 100773437 B1 20071105; KR 20020070080 A 20020905; PL 199298 B1 20080930; PL 352345 A1 20020909
DOCDB simple family (application)
EP 02405048 A 20020128; CN 02105164 A 20020225; DE 50204735 T 20020128; DK 02405048 T 20020128; JP 2002015648 A 20020124; KR 20010077262 A 20011207; PL 35234502 A 20020220