Fluid conveying device

Patent metadata

Field	Value
Publication number	US-11067044-B2
Application number	US-201716333754-A
Country	US
Kind code	B2
Filing date	Sep 13, 2017
Priority date	Sep 16, 2016
Publication date	Jul 20, 2021
Grant date	Jul 20, 2021

Abstract

A fluid-conveying device for conveying a fluid from a tank includes: a first fluid-conveying pump; a swirl pot; and a second fluid-conveying pump having a drive region and a conveying region coupled to the drive region. The fluid is conveyable from the swirl pot by the first fluid-conveying pump, and the conveying region is configured and arranged so as to be drivable by the drive region.

First claim

The invention claimed is:

1. A fluid-conveying device for conveying a fluid from a tank, comprising:
a first fluid-conveying pump ( 3 );
a swirl pot ( 2 ) arranged within the tank; and
a second fluid-conveying pump ( 4 ) having a drive region ( 5 ) and a conveying region ( 6 ) coupled to the drive region ( 5 ),
wherein the fluid is conveyable from the swirl pot ( 2 ) by the first fluid-conveying pump ( 3 ), and wherein the conveying region ( 6 ) is configured and arranged so as to be drivable by the drive region ( 5 ), and
wherein the second fluid-conveying pump ( 4 ) is arranged downstream of the first fluid-conveying pump ( 3 ) in a flow direction toward a consumer, such that a volume stream of the fluid conveyed from the swirl pot ( 2 ) by the first fluid-conveying pump ( 3 ) first enters the second fluid-conveying pump ( 4 ), then exits the second fluid-conveying pump ( 4 ), and then, further downstream of the second fluid-conveying pump ( 4 ), enters the consumer.

2. The fluid-conveying device as claimed in claim 1 , wherein the conveying region ( 6 ) and the drive region ( 5 ) are mechanically coupled to one another by a shaft ( 7 ).

3. The fluid-conveying device as claimed in claim 1 , wherein the drive region ( 5 ) is configured and arranged so as to be drivable by the volume stream conveyed by the first fluid-conveying pump ( 3 ).

4. The fluid-conveying device as claimed in claim 1 , wherein the drive region ( 5 ) and/or the conveying region ( 6 ) have/has a pump stage.

5. The fluid-conveying device as claimed in claim 1 , wherein the fluid is conveyed from the tank ( 1 ) into the swirl pot ( 2 ) through the conveying region ( 6 ) of the second fluid-conveying pump ( 4 ).

6. The fluid-conveying device as claimed in claim 1 , wherein the first fluid-conveying pump ( 3 ) is arranged in the swirl pot ( 2 ).

7. A motor vehicle having a fluid-conveying device as claimed in claim 1 , wherein the consumer is an internal combustion engine, and wherein fluid in the swirl pot ( 2 ) is conveyed toward the internal combustion engine through the first fluid-conveying pump ( 3 ), wherein the second fluid-conveying pump ( 4 ) is arranged downstream of the first fluid-conveying pump ( 3 ) in a conveying direction toward the internal combustion engine, and upstream of the internal combustion engine, and the swirl pot ( 2 ) is configured and arranged so as to be fillable by operation of the second fluid-conveying pump ( 4 ), via the conveying region ( 6 ) of the second fluid-conveying pump ( 4 ).

8. The motor vehicle as claimed in claim 7 , wherein the second fluid-conveying pump ( 4 ) is in fluid contact with one or more regions of the tank ( 1 ) via a first fluid line and is in fluid contact with an inner volume of the swirl pot ( 2 ) via a second fluid line, wherein fuel is conveyed from the tank into the swirl pot ( 2 ) by operation of the second fluid-conveying pump ( 4 ).

Assignees

• Cpt Group Gmbh
• Vitesco Tech Gmbh

Inventors

• Fischer Matthias
• Deichmann Johannes
• Schmick Andreas
• Gerst Karsten

Classifications

• F02M37/18

  characterised by provision of main and auxiliary pumps · CPC title

• B60K2015/03105

  with supplementary interior tanks inside the fuel tank · CPC title

• F02M37/0094

  Saddle tanks; Tanks having partition walls · CPC title

• F02M37/106 Primary

  the pump being installed in a sub-tank · CPC title

• F02M37/12

  fluid-driven, e.g. by compressed combustion-air · CPC title