Sucking jet pump arrangement

Patent metadata

Field	Value
Publication number	US-11674483-B2
Application number	US-201816958521-A
Country	US
Kind code	B2
Filing date	Dec 20, 2018
Priority date	Dec 29, 2017
Publication date	Jun 13, 2023
Grant date	Jun 13, 2023

Abstract

A sucking jet pump arrangement, with a sucking jet pump comprising a primary fluid inlet for feeding a fuel driving stream to the sucking jet pump, a secondary fluid inlet for feeding the sucking jet pump with the fuel to be delivered, a fluid outlet for outputting the fuel, and a collection container surrounding a first end of the sucking jet pump opposite of the fluid outlet. The container preferably surrounds the primary fluid inlet from at least three sides such that the sucking jet pump sucks fuel via the secondary fluid inlet out of the inner volume of the collection container. The collection container has at least one fuel inlet opening for feeding fuel from the outside to the inner volume of the collection container.

First claim

The invention claimed is:

1. A sucking jet pump arrangement, comprising:
a sucking jet pump having a primary fluid inlet for feeding a fuel driving stream to the sucking jet pump;
a secondary fluid inlet for feeding the sucking jet pump with fuel to be delivered;
a fluid outlet for outputting fuel;
a collection container surrounding a first end of the sucking jet pump opposite of the fluid outlet at least from three sides such that the sucking jet pump sucks fuel via the secondary fluid inlet out of the inner volume of the collection container; and
the collection container having at least one fuel inlet opening for feeding fuel from the outside to the inner volume of the collection container;
wherein a part of the collection container that surrounds the primary fluid inlet has a U-shaped cross section when seen from above, and wherein an upper edge of two sidewalls forming the U-shaped part of the collection container have a sloping shape with their highest point being at a backside wall of the U-shaped part, and wherein the collection container has a second U-shaped part with a second backside wall arranged at an angle of 90° with regard to the backside wall of the first U-shaped part, one sidewall of the second U-shaped part being connected with one sidewall of the first U-shaped part.

2. The sucking jet pump arrangement according to claim 1 , wherein the fuel inlet opening of the collection container is arranged lower than the secondary fluid inlet of the sucking jet pump.

3. The sucking jet pump arrangement according to claim 1 , wherein an upper edge of the two sidewalls of the second U-shaped part of the collection container have a sloping shape with their highest point being at a backside wall of the second U-shaped part.

4. The sucking jet pump arrangement according to claim 1 , wherein the sidewalls of the first U-shaped part of the collection container extend beyond the secondary fluid inlet such that fuel in the area of the secondary fluid inlet can be retained by the sidewalls.

5. The sucking jet pump arrangement according to claim 1 , wherein the sloping edge of at least one of the first and second U-shaped part of the collection container is sloped at an angle of at least 30° to 40° when compared to the lower side of the sucking jet pump.

6. The sucking jet pump arrangement according to claim 1 , wherein the collection container has a spiral-shape when seen from above.

7. The sucking jet pump arrangement according to claim 6 , wherein at least one of the outer walls of the spiral-shaped collection container comprises the at least one fuel inlet opening for feeding fuel from the outside to the inner volume of the collection container.

8. The sucking jet pump arrangement according to claim 1 , wherein the collection container surrounds the primary fluid inlet of the sucking jet pump.

9. The sucking jet pump arrangement according to claim 1 , wherein the backside wall of the second U-shaped part of the collection container extends beyond the secondary fluid inlet such that fuel in the area of the secondary fluid inlet can be retained by this backside wall.

10. The sucking jet pump arrangement according claim 6 , wherein the collection container surrounds the sucking jet pump such that the spiral-shape extends for about 450° around the sucking jet pump.

11. The sucking jet pump arrangement according to claim 1 , wherein the collection container has a snail-shape when seen from above.

12. A sucking jet pump arrangement, comprising:
a sucking jet pump having a primary fluid inlet for feeding a fuel driving stream to the sucking jet pump;
a secondary fluid inlet for feeding the sucking jet pump with fuel to be delivered;
a fluid outlet for outputting fuel;
a collection container surrounding a first end of the sucking jet pump opposite of the fluid outlet at least from three sides such that the sucking jet pump sucks fuel via the secondary fluid inlet out of the inner volume of the collection container; and
the collection container having at least one fuel inlet opening for feeding fuel from the outside to the inner volume of the collection container;
wherein a part of the collection container that surrounds the primary fluid inlet has a U-shaped cross section when seen from above;
wherein the collection container has a second U-shaped part arranged in an angle of 90° with regard to the first U-shaped part, one sidewall of the second U-shaped part being connected with one sidewall of the first U-shaped part, and wherein an upper edge of the two sidewalls of the second U-shaped part have a sloping shape with their highest point being at a backside wall of the second U-shaped part.

13. The sucking jet pump arrangement according to claim 12 , wherein the fuel inlet opening of the collection container is arranged lower than the secondary fluid inlet of the sucking jet pump.

14. The sucking jet pump arrangement according to claim 12 , wherein an upper edge of two sidewalls forming the U-shaped part of the collection container have a sloping shape with their highest point being at a backside wall of the U-shaped part.

15. The sucking jet pump arrangement according to claim 12 , wherein the sidewalls of the first and second U-shaped parts of the collection container extend beyond the secondary fluid inlet such that fuel in the area of the secondary fluid inlet can be retained by the sidewalls of the first and second U-shaped parts.

16. The sucking jet pump arrangement according to claim 12 , wherein the collection container has a spiral-shape when seen from above, and wherein at least one of the outer walls of the spiral-shaped collection container comprises the at least one fuel inlet opening for feeding fuel from the outside to the inner volume of the collection container.

Assignees

• Ti Automotive Tech Ct Gmbh

Inventors

• Boecker Albert
• Schaefer Thorsten

Classifications

• B60K15/077

  with means modifying or controlling distribution or motion of fuel, e.g. to prevent noise, surge, splash or fuel starvation · CPC title

• F04F5/44 Primary

  Component parts, details, or accessories not provided for in, or of interest apart from, groups F04F5/02 - F04F5/42 · CPC title

• F02M37/025 Primary

  Feeding by means of a liquid fuel-driven jet pump (jet pumps per se F04F) · CPC title

• F02M37/02

  Feeding by means of suction apparatus, e.g. by air flow through carburettors (by driven pumps F02M37/04) · CPC title

• F04F5/46

  Arrangements of nozzles · CPC title