Global Patent Index - EP 1228313 A1

EP 1228313 A1 20020807 - HYDRAULIC PISTON PUMP

Title (en)

HYDRAULIC PISTON PUMP

Title (de)

HYDRAULISCHE KOLBENPUMPE

Title (fr)

POMPE HYDRAULIQUE A PISTONS

Publication

EP 1228313 A1 20020807 (DE)

Application

EP 00993113 A 20001113

Priority

  • DE 0003952 W 20001113
  • DE 19954639 A 19991113

Abstract (en)

[origin: WO0136820A9] All pistons (4) of a hydraulic piston pump having an adjustable delivery rate are provided with beveled control edges (9), which are placed on the faces of the pistons (4) and which interact with the inlet borings (10) according to the principle of beveled edge control. Different means (12; 13; 14; 15; 20; 21; 22; 23; 24; 25; 26; 28; 29) effect a mutual torsion of the pistons (4) thus regulating the delivery rate. The piston pump is especially suited for diesel injection systems but can also be used for many applications in industrial hydraulic engineering.

IPC 1-7

F04B 1/30; F04B 7/06; F04B 1/07

IPC 8 full level

F04B 1/07 (2006.01); F04B 1/30 (2006.01); F04B 7/06 (2006.01); F04B 49/12 (2006.01)

CPC (source: EP US)

F04B 1/07 (2013.01 - EP US); F04B 1/303 (2013.01 - EP US); F04B 7/06 (2013.01 - EP); F04B 49/125 (2013.01 - EP US)

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)

WO 0136820 A1 20010525; WO 0136820 A9 20010621; AT E248991 T1 20030915; AU 2826001 A 20010530; CN 1390281 A 20030108; CZ 20022062 A3 20021016; DE 19954639 A1 20010607; DE 19954639 C2 20020529; DE 50003582 D1 20031009; EP 1228313 A1 20020807; EP 1228313 B1 20030903

DOCDB simple family (application)

DE 0003952 W 20001113; AT 00993113 T 20001113; AU 2826001 A 20001113; CN 00815556 A 20001113; CZ 20022062 A 20001113; DE 19954639 A 19991113; DE 50003582 T 20001113; EP 00993113 A 20001113