Valve for controlling a fluid flow

Patent metadata

Field	Value
Publication number	US-11466786-B2
Application number	US-201816491190-A
Country	US
Kind code	B2
Filing date	Feb 28, 2018
Priority date	Mar 7, 2017
Publication date	Oct 11, 2022
Grant date	Oct 11, 2022

Abstract

The invention relates to a valve (1, 1a), in particular an expansion valve, for controlling fluid flow, having a valve central housing (10, 10a) having a first and a second opening (12, 12a, 14, 14a) and a valve element (20, 20a) which has a rotationally symmetrical outline and is arranged rotatably within the valve element housing (10, 10a). According to the invention, the valve element (20, 20a) has a cut-out, wherein the cut-out (30, 30a, 30b, 30c) has a variable dimension, and a sub region (32, 32a) of the cutout (30, 30a, 30b, 30c) is formed continuously through the valve element (20, 20a).

First claim

What is claimed is:

1. A valve ( 1 , 1 a ) for controlling a fluid stream, the valve having a valve means housing, with a first opening ( 12 , 12 a ) and a second opening ( 14 , 14 a ), and having a valve means ( 20 , 20 a ) which has a rotationally symmetrical basic shape and is arranged rotatably within the valve means housing ( 10 , 10 a ), wherein the valve means ( 20 , 20 a ) has at least one recess ( 30 , 30 a , 30 b , 30 c ), the recess ( 30 , 30 a ) having a varying dimension, and a part region ( 32 , 32 a ) of the recess ( 30 , 30 a , 30 b , 30 c ) being of continuous configuration through the valve means ( 20 , 20 a ), and
wherein at least one of the at least one recess ( 30 , 30 a , 30 b , 30 c ) has a varying depth in a circumferential direction.

2. The valve ( 1 , 1 a ) as claimed in claim 1 , characterized in that the valve means ( 20 , 20 a ) is of pot-shaped or disk-shaped configuration.

3. The valve ( 1 , 1 a ) as claimed in claim 2 , characterized in that the valve means ( 20 ) of pot-shaped configuration has a valve means shell ( 22 ), a valve means bottom ( 24 ) and a valve means edge ( 26 ), the valve means edge ( 26 ) pointing in a direction of the first opening ( 12 ), the valve means shell ( 22 ) having at least one of the at least one recess ( 30 , 30 a , 30 b ), such that a fluid stream through the first opening ( 12 ), an inner region of the valve means ( 20 ) and the second opening ( 14 ) can be regulated in a manner which is dependent on a position of the recess ( 30 , 30 a , 30 b ) of the valve means ( 20 ) in relation to the second opening ( 14 ).

4. The valve ( 1 , 1 a ) as claimed in claim 2 , characterized in that at least one of the recesses ( 30 c ) is configured on an upper side and/or an underside of the disk-shaped valve means ( 20 a ).

5. The valve ( 1 , 1 a ) as claimed in claim 2 , characterized in that the valve means ( 20 ) of pot-shaped configuration has a valve means shell ( 22 ), a valve means bottom ( 24 ) and a valve means edge ( 26 ), the valve means edge ( 26 ) pointing in a direction of the first opening ( 12 ), the valve means shell ( 22 ) having at least one of the at least one recess ( 30 , 30 a , 30 b ), such that a fluid stream through the first opening ( 12 ), an inner region of the valve means ( 20 ) and the second opening ( 14 ) can be regulated in a manner which is dependent on a rotary position of the recess ( 30 , 30 a , 30 b ) of the valve means ( 20 ) in relation to the second opening ( 14 ).

6. The valve ( 1 , 1 a ) as claimed in claim 1 , characterized in that at least one of the at least one recess ( 30 , 30 a , 30 b , 30 c ) is configured as a channel.

7. The valve ( 1 , 1 a ) as claimed in claim 1 , characterized in that the part region ( 32 , 32 a ) is configured as a hole.

8. The valve ( 1 , 1 a ) as claimed in claim 1 , characterized in that the valve means housing ( 10 , 10 a ) has a third opening, such that a fluid stream through the third opening ( 16 ) can be regulated in a manner which is dependent on a position of the valve means ( 20 ) in relation to the third opening ( 16 ).

9. The valve ( 1 , 1 a ) as claimed in claim 8 , characterized in that the second opening ( 14 , 14 a ) and the third opening ( 16 , 16 a ) are configured in the valve means housing ( 10 , 10 a ) offset with respect to one another as viewed in a longitudinal direction and/or a circumferential direction of the valve ( 1 , 1 a ).

10. The valve ( 1 , 1 a ) as claimed in claim 8 , characterized in that the at least one recess ( 30 , 30 a , 30 b , 30 c ) is/are configured in such a way that, plotted against a rotary angle, a first fluid stream from one of the first, second and third openings ( 12 , 12 a , 14 , 14 a , 16 , 16 a ) rises as far as a maximum and is then interrupted, whereas, plotted against the rotary angle, a second fluid stream from an other one of the first, second and third openings ( 12 , 12 a , 14 , 14 a , 16 , 16 a ) rises multiple times, as far as a maximum, and is subsequently interrupted.

11. The valve ( 1 , 1 a ) as claimed in claim 1 , characterized in that the at least one recess includes a second recess ( 30 , 30 a , 30 b , 30 c ).

12. The valve ( 1 , 1 a ) as claimed in claim 1 , characterized in that an actuator ( 64 ) is provided for rotating the valve means ( 20 , 20 a ).

13. The valve ( 1 , 1 a ) as claimed in claim 1 , characterized in that the valve means housing ( 10 , 10 a ) has a throughflow region ( 18 , 18 a ), the throughflow region ( 18 , 18 a ) being configured as a recess, and the valve means ( 20 , 20 a ) being arranged in the throughflow region ( 18 , 18 a ).

14. The valve ( 1 , 1 a ) as claimed in claim 1 , characterized in that the valve is an expansion valve.

15. The valve ( 1 , 1 a ) as claimed in claim 1 , characterized in that at least one of the at least one recess ( 30 , 30 a , 30 b , 30 c ) is configured as a groove on an upper side and/or an underside or in an outer circumference of the valve means ( 20 , 20 a ).

16. The valve ( 1 , 1 a ) as claimed in claim 1 , characterized in that the part region ( 32 , 32 a ) is configured as a circular aperture.

17. The valve ( 1 , 1 a ) as claimed in claim 1 , characterized in that the valve means housing ( 10 , 10 a ) has a third opening, such that a fluid stream through the third opening ( 16 ) can be regulated in a manner which is dependent on a rotary position of the valve means ( 20 ) in relation to the third opening ( 16 ).

18. The valve ( 1 , 1 a ) as claimed in claim 1 , characterized in that the at least one recess includes more than two second recesses ( 30 , 30 a , 30 b , 30 c ), the at least one recess and the second recesses being spaced apart from one another in a longitudinal direction and/or in a circumferential direction of the valve ( 1 ).

19. The valve ( 1 , 1 a ) as claimed in claim 1 , characterized in that an actuator ( 64 ) is provided for rotating the valve means ( 20 , 20 a ) as a stepping motor, a brush motor or a brushless motor.

20. The valve ( 1 , 1 a ) as claimed in claim 1 , characterized in that the valve means housing ( 10 , 10 a ) has a throughflow region ( 18 , 18 a ), the throughflow region ( 18 , 18 a ) being configured as a recess, and the valve means ( 20 , 20 a ) being arranged rotatably in the throughflow region ( 18 , 18 a ).

21. The valve ( 1 , 1 a ) as claimed in claim 1 , characterized in that, plotted against a rotary angle, the second fluid stream is of sawtooth-like configuration, pauses being configured between sawteeth, in which pauses the fluid stream through one of the first, second and third openings ( 12 , 12 a , 14 , 14 a , 16 , 16 a ) is interrupted.

22. A valve ( 1 , 1 a ) for controlling a fluid stream, the valve having a valve means housing, with a first opening ( 12 , 12 a ) and a second opening ( 14 , 14 a ), and having a valve means ( 20 , 20 a ) which has a rotationally symmetrical basic shape and is arranged rotatably within the valve means housing ( 10 , 10 a ),
wherein the valve means ( 20 , 20 a ) has at least one recess ( 30 , 30 a , 30 b , 30 c ), the recess ( 30 , 30 a ) having a varying dimension, and a part region ( 32 , 32 a ) of the recess ( 30 , 30 a , 30 b , 30 c )

Assignees

• Bosch Gmbh Robert

Inventors

• Wang Haixiang
• Demmer Thomas
• Hickey Rob
• Helming Thomas

Classifications

• F25B41/385

  Dispositions with two or more expansion means arranged in parallel on a refrigerant line leading to the same evaporator · CPC title

• F16K11/076

  with sealing faces shaped as surfaces of solids of revolution · CPC title

• F25B2500/18

  Optimization, e.g. high integration of refrigeration components · CPC title

• F25B41/35

  by rotary motors, e.g. by stepping motors · CPC title

• F16K11/0743 Primary

  with both the supply and the discharge passages being on one side of the closure plates · CPC title