Patent · US Active

Filter device having a pump

US10639569B2 · kind B2 · utility

0Cited by

3References

18Claims

0Family size

Assignee

HYDAC FLUIDCARECENTER GMBH · DE

Inventors

Thomas Scholl · New Haven, US
Micha Kreibig · Beckingen, DE

Key dates

Filing date	Sep 22, 2016
Grant date	May 5, 2020
Priority date	—
Expiry date	Jan 14, 2037

Classification

Technology area (CPC B)Performing Operations; Transporting
CPC primaryB01D2201/347
WIPO fieldChemical engineering
WIPO sectorChemistry

Abstract

A filter device usable with diesel fuels, includes a filter element (19) exchangeably accommodated in a filter housing. A fluid pump device (46) having two pump chambers (45, 49) is part of the filter device. The pump chambers, by a pump piston (51) guided in the chambers in a longitudinally movable manner, are separated from each other fluid-tight at least in one of the two directions of movement of the pump piston. Each pump chamber (45, 49) is assigned a valve (39, 63) opening or closing oppositely to the other valve (39, 63) when the pump device (46) is actuated.

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