Hydraulic conveying device

US6168401A · kind A · utility

Assignee

• LuK Automobiltechnik GmbH & Co. KG · DE

Inventors

• Kai Schenck · Remscheid, DE
• Dieter Otto · Achern, DE

Key dates

• Filing date: May 4, 1999
• Grant date: Jan 2, 2001
• Expiry date: May 4, 2019

Classification

• Technology area (CPC F): Mechanical Engineering; Lighting; Heating
• CPC primary: F04C2/3566
• WIPO field: Engines, pumps, turbines
• WIPO sector: Mechanical engineering

Abstract

An hydraulic conveying device, in particular for conveying diesel fuel for an internal-combustion engine in motor vehicles, with a housing provided with at least one conveying chamber as well as a displacement unit rotor arranged in the conveying chamber. Rotation of the displacement unit forms pump chambers with varying volumes by means of which a fluid is conveyed from a suction connection of the conveying device to a pressure connection of the conveying device. The conveying devices includes a screen or wall with openings for retaining a quantity of the fluid to be conveyed in the conveying chamber when a supply of fluid by way of the suction connection is interrupted.