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Found results for
 patents
1.
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Pump device
| Application Number |
11896524 |
| Grant Number |
08360750 |
| Status |
In Force |
| Filing Date |
2007-09-04 |
| First Publication Date |
2008-03-06 |
| Grant Date |
2013-01-29 |
| Owner |
Bran+Luebbe GmbH (Germany)
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| Inventor |
- Ferk, Bernd
- Gode, Gunnar
- Ladiges, Henning
- Petersen, Dirk
- Schade, Uwe
- Tille, Wilfried
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Abstract
The present invention relates to a pump device with a first diaphragm pump head having two or an integral multiple of two fluid delivery chambers and diaphragms associated therewith, which are hydraulically coupled to a second diaphragm pump head. The second diaphragm pump head has two additional fluid delivery chambers and additional membranes associated therewith, which are drivable by a double-acting piston via associated diaphragm control chambers, a refilling valve being connected in each case to the diaphragm control chambers and the diaphragm control chambers being temporarily impinged with a diaphragm control pressure, which is greater than atmospheric pressure, using the refilling valve. The piston may thus be activated using a relatively small force to achieve a delivery action.
IPC Classes ?
- F04B 9/08 - Piston machines or pumps characterised by the driving or driven means to or from their working members the means being fluid
- F04B 43/06 - Pumps having fluid drive
- F04B 35/00 - Piston pumps specially adapted for elastic fluids and characterised by the driving means to their working members, or by combination with, or adaptation to, specific driving engines or motors, not otherwise provided for
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2.
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Pump gear
| Application Number |
11473053 |
| Grant Number |
09097249 |
| Status |
In Force |
| Filing Date |
2006-06-23 |
| First Publication Date |
2007-05-03 |
| Grant Date |
2015-08-04 |
| Owner |
BRAN+LUEBBE GMBH (Germany)
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| Inventor |
Petersen, Dirk
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Abstract
A pump mechanism having multiple cylinders, whose axes are situated around a crankshaft to enclose predetermined angles, and whose pistons are each functionally connected to a connecting rod mounted on a crank on the crankshaft, each connecting rod being mounted on its own crank and the cranks having a predetermined angular offset to one another. This angular offset of the cranks is selected in accordance with the angle which the cylinder axes enclose in such a way that the phase shifts between each two pistons of the cylinders actuated in sequence during a rotation of the crankshaft are equally large.
IPC Classes ?
- F04B 1/04 - Multi-cylinder machines or pumps characterised by number or arrangement of cylinders having cylinders in star- or fan-arrangement
- F04B 53/00 - Component parts, details or accessories not provided for in, or of interest apart from, groups or
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