Patent · US Active

High pressure pump

US10047743B2 · kind B2 · utility

0Cited by
4References
13Claims
0Family size

Assignee

Inventors

Key dates

Filing dateJul 31, 2014
Grant dateAug 14, 2018
Priority date
Expiry dateDec 19, 2034

Classification

  • Technology area (CPC F)Mechanical Engineering; Lighting; Heating
  • CPC primaryF04B53/22
  • WIPO fieldEngines, pumps, turbines
  • WIPO sectorMechanical engineering

Abstract

A high pressure pump for delivering a fluid includes a pump housing with a longitudinal axis and a housing cavity, a piston partly arranged in the housing cavity and axially moveable within the housing cavity and having an axial end directed opposite a driving side of the high pressure pump, and a sealing unit having a sealing body arranged radially outside of the piston such that a first part of the housing cavity is sealed fluid-tight against a second part of the housing cavity. The sealing body includes a neck with an inner diameter smaller than a first diameter of a part of the piston arranged between the sealing body neck and the axial end of the piston. The piston has a second diameter in an axial area in which the sealing body neck is arranged, which second diameter is smaller than the first diameter.

Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.