US 2018/0051564 A1Published application

Pump device

Assigneeebm-papst St. Georgen GmbH & Co. KG

InventorsMarkus BRAXMAIER, Hassan GHODSI-KHAMENEH, Daniel HAUER, Juergen HERR, Marc JEUCK, Gerhard KUHNERT, Wolfgang LAUFER, Mario STAIGER

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Abstract

The invention relates to a pump device for pumping a liquid, comprising a hydraulics housing (12, 212), in which a pump ring (14, 214), a pump ring support (16, 216) and an eccentric (18), which can be driven by a shaft (20), are accommodated. The hydraulics housing (12, 212) has an annular portion (22, 222) and a first and a second lateral section (24, 26, 224), the two lateral sections (24, 26,224) being arranged opposite each other. The pump ring (14, 214) is mounted between the two lateral sections (24, 26, 224) of the hydraulics housing (12, 212) at least in some portions. On a side facing away from the pump ring support (16, 216), two first projections (28, 228), which run in the axial direction of the shaft (20), are each in contact with one of the two lateral sections (24, 26, 224).

Claims17

Dependent claims

Pump device for pumping a liquid, comprising

a hydraulics housing (12, 212) within which a deformable pump ring (14, 214),
a pump ring support (16, 216) and
an eccentric (18) are accommodated, said eccentric (18) being driven by a shaft (20), said shaft defining an axial and a radial direction,
wherein
the hydraulics housing (12, 212) has
an annular portion (22, 222),
a first lateral section (24, 224), and
a second lateral section (26), the two lateral sections (24, 26, 224) being arranged opposite each other, and
wherein the pump ring (14, 214) is, at least in some portions, mounted between said first and second lateral sections (24, 26, 224) of the hydraulics housing (12, 212) and has
two first projections (28, 28a, 28b, 228) which extend in an axial direction of the shaft (20) on a side facing away from the pump ring support (16, 216) which are, in each case
in contact with one of the two lateral sections (24, 26, 224).

8 more elements

Dependencies are inferred from the claim text.

Facts

Application: 15/557,111Filed 31 Mar 2016
Priority: DE 10 2015 106 610.629 Apr 2015
Published: 22 Feb 2018
Term ends: Not estimatedThe source records don’t support an estimate.

Classification10 codes

F01C 5/02
Rotary-piston machines or engines with the working-chamber walls at least partly resiliently deformable: the resiliently-deformable wall being…
F04B 43/10
Having tubular flexible members: pumps having fluid drive
F04C 5/00
Rotary-piston machines or pumps with the working-chamber walls at least partly resiliently
F01N 2610/1406
Arrangements for the supply of substances, e.g. conduits: storage means for substances, e.g. tanks or reservoirs