Global Patent Index - EP 0400693 A3

EP 0400693 A3 19910220 - HIGH PRESSURE PUMP

Title (en)

HIGH PRESSURE PUMP

Publication

EP 0400693 A3 19910220 (DE)

Application

EP 90114874 A 19870407

Priority

  • EP 90114874 A 19870407
  • EP 87105118 A 19870407

Abstract (en)

[origin: EP0285685A1] The invention sets out to create a unit with a fluid flowing through it even for high pressures up to several thousand bar which functions reliably and efficiently and yet is cheap and space-saving. Such a unit should preferably function between 400 and 4000 bar whilst simplifying and improving measures which have been published in the European specification 0 102 441. To this end a new type of tapered annular parts are proposed, tested and placed in specific relationships to pressures in internal and/or external chambers. The defects of former units which limited their pressures are recognised and overcome, design, exclusion of dead spaces, minimising of points to be sealed and improved sealing for high pressures being tested and their theoretical bases identified. W, S, W-Y, V-elements, diaphragms tapered rings with lugs for radial limits and other means made the units reliable in testing and produced good levels of efficiency. <IMAGE>

IPC 1-7

F04B 43/06

IPC 8 full level

F04B 1/04 (2006.01); F04B 43/00 (2006.01); F04B 43/067 (2006.01); F04B 43/107 (2006.01); F04B 53/14 (2006.01)

CPC (source: EP US)

F04B 1/0408 (2013.01 - EP); F04B 43/0018 (2013.01 - EP); F04B 43/0063 (2013.01 - EP); F04B 43/067 (2013.01 - EP US); F04B 43/107 (2013.01 - EP); F04B 53/141 (2013.01 - EP); F04B 53/142 (2013.01 - EP US)

Citation (search report)

Designated contracting state (EPC)

AT CH DE FR GB IT LI NL SE

DOCDB simple family (publication)

EP 0285685 A1 19881012; EP 0400693 A2 19901205; EP 0400693 A3 19910220

DOCDB simple family (application)

EP 87105118 A 19870407; EP 90114874 A 19870407