Pneumatic multi-valve device and production method

Patent metadata

Field	Value
Publication number	US-10989322-B2
Application number	US-201716094522-A
Country	US
Kind code	B2
Filing date	Feb 3, 2017
Priority date	Apr 18, 2016
Publication date	Apr 27, 2021
Grant date	Apr 27, 2021

Abstract

A pneumatic multi-valve device includes a housing ( 21 ) having a plurality of electromagnetic valve actuators ( 1 ), each having coil elements ( 2 ) arranged stationary in the housing ( 21 ), a core ( 4 ) arranged in the housing ( 21 ), and armature elements ( 24 ). The cores ( 4 ) each have a venting bore ( 5 ) connected to a venting collection channel ( 14 ) on the side of the cores ( 4 ) facing away from the connection housing side ( 23 ). The venting collection channel is connected to a venting opening ( 28 ) of the housing ( 21 ), which venting opening is arranged on a housing side different from the housing back side ( 25 ). The venting collection channel ( 14 ) is formed by a plurality of venting channel elements ( 13 ), which are connected to each other.

First claim

The invention claimed is:

1. A pneumatic multi-valve device, (valve block), comprising a housing ( 21 ), which has a plurality of electromagnetic valve actuators ( 1 ), each having coil elements ( 2 ) arranged in the housing ( 21 ) in a stationary manner, a core ( 4 ) arranged in the housing ( 21 ), and armature elements ( 24 ), which can be displaced along a displacement axis (V) in the housing ( 21 ) relative to the core ( 4 ) and to a pneumatic connection ( 12 ) of the housing ( 21 ) as a response to energization of the coil elements ( 2 ), wherein the displacement axes (V) of the armature elements ( 24 ) of the valve actuators ( 1 ) are oriented parallel and the pneumatic connections ( 12 ) associated with the armature elements ( 24 ) are arranged adjacent to each other on a connection housing side ( 23 ), which is spaced apart from a housing back side ( 25 ) facing away therefrom along the displacement axes (V), wherein the cores ( 4 ) each have a venting bore ( 5 ), which is connected in an air-conducting manner to a venting collection channel ( 14 ) on the side of the cores ( 4 ) facing away from the connection housing side ( 23 ), which venting collection channel is connected in an air-conducting manner to a venting opening ( 28 ) of the housing ( 21 ), which venting opening is arranged on a housing side different from the housing back side ( 25 ), the housing side being the connection housing side ( 23 ) having the pneumatic connections ( 12 ), wherein the venting collection channel ( 14 ) has a longitudinal axis and is formed by a plurality of venting channel elements ( 13 ) connected to each other and distributed along the longitudinal axis of the venting collection channel ( 14 ), wherein the plurality of venting channel elements ( 13 ) are connected to each other in an air-conducting manner.

2. The multi-valve device according to claim 1 , wherein the housing ( 21 ) has a monolithic housing body ( 22 ) which is formed by overmolding the venting channel elements ( 13 ), together with the coil elements ( 2 ), with plastic.

3. The multi-valve device according to claim 2 , wherein a venting channel, which extends parallel to the displacement axes (V) and which connects the venting collection channel ( 14 ) to the venting opening ( 28 ), which is formed by a venting channel end of the venting channel ( 19 ), is embodied in the housing body ( 22 ).

4. The multi-valve device according to claim 1 , wherein the venting channel elements ( 13 ) are mechanically connected to each other, in a positive manner, and/or wherein the venting channel elements ( 13 ) are mechanically connected to the cores ( 4 ).

5. The multi-valve device according to claim 4 , wherein the venting channel elements ( 13 ) are mechanically connected to each other in a positive manner by inserting into each other and/or interlocking with each other, and/or wherein the venting channel elements ( 13 ) are mechanically connected to the cores ( 4 ) by means of inserting or attaching into or onto the cores ( 4 ), respectively.

6. The multi-valve device according to claim 1 , wherein one of the venting channel elements ( 13 ) is embodied as branching element, which has a connection channel section ( 20 ) for connection to one of the cores ( 4 ), at least one connection channel section ( 17 ) for linking to another one of the venting channel elements ( 13 ) leading to another one of the cores ( 4 ), as well as a deflection channel section for the air-conducting connection to the venting opening ( 28 ).

7. The multi-valve device according to claim 1 , wherein at least some of the venting channel elements ( 13 ) permeate a joint electrical connection plate ( 8 ) for electrically contacting the plurality of coil elements ( 2 ), axially in extension of the displacement axes (V).

8. The multi-valve device according to claim 1 , wherein the armature elements ( 24 ) are each guided directly in one of the coil carriers ( 3 ), which are embodied as plastic part, of the associated coil elements ( 2 ) in a longitudinally displaceable manner, without interpositioning an armature guide tube.

9. The multi-valve device according to claim 1 , wherein the venting bores ( 5 ), which are centrically arranged in the cores ( 4 ), run axially in a straight line and/or are parallel among each other and/or wherein a respective working chamber ( 33 ), which can be vented via the associated venting bore ( 5 ), is bounded by each armature element ( 24 ) and the associated core ( 4 ).

10. The multi-valve device according to claim 1 , wherein that the venting bores ( 5 ) are connected to the pneumatic connection ( 12 ) and/or a working line ( 37 ) via a respective connection channel ( 36 ), which leads into the respective working chamber ( 33 ).

11. The multi-valve device according to claim 10 , wherein the respective connection channel ( 36 ) comprises at least one bore in the respective armature elements ( 24 ) and/or is embodied on the outer circumference of the armature elements ( 24 ).

12. The multi-valve device according to claim 1 , wherein a venting valve seat ( 32 ), which is associated with the corresponding venting bore ( 5 ), is in each case associated with the armature elements ( 24 ) for closing the respective venting bore ( 5 ), by energizing the coil elements ( 2 ).

13. The multi-valve device according to claim 1 , further comprising that a working valve seat ( 30 ), which is in each case associated with the armature elements ( 24 ) in the area of the pneumatic connection ( 12 ), for opening and closing an air-conducting connection between a pressure supply line and a working line.

14. The multi-valve device according to claim 1 , wherein the housing ( 21 ) is connected via the pneumatic connections ( 12 ) to a distributor plate ( 26 ) having working valve seats ( 30 ) for interacting with the armature elements ( 24 ), at least one pressure supply line, and at least one working line.

15. The multi-valve device according to claim 1 , wherein the plurality of venting channel elements ( 13 ) are each embodied as a plastic injection molded part.

16. A method for producing a multi-valve device ( 27 ) comprising a housing ( 21 ), which has a plurality of electromagnetic valve actuators ( 1 ), each having coil elements ( 2 ) arranged in the housing ( 21 ) in a stationary manner, a core ( 4 ) arranged in the housing ( 21 ), and armature elements ( 24 ), which can be displaced along a displacement axis (V) in the housing ( 21 ) relative to the core ( 4 ) and to a pneumatic connection ( 12 ) of the housing ( 21 ) as a response to energization of the coil elements ( 2 ), wherein the displacement axes (V) of the armature elements ( 24 ) of the valve actuators ( 1 ) are oriented parallel and the pneumatic connections ( 12 ) associated with the armature elements ( 24 ) are arranged adjacent to each other on a connection housing side ( 23 ), which is spaced apart from a housing back side ( 25 ) facing away therefrom along the displacement axes (V), wherein each core ( 4 ) has a venting bore ( 5 ), which is connected in an air-conducting manner to a venting collection channel ( 14 ) on the side of the core ( 4 ) facing away from the connection housing side ( 23 ), which venting collection channel is connected in an air-conducting manner to a venting opening ( 28 ) of the housing ( 21 ), which venting opening is arranged on a housing side different from the housing back side ( 25 ), the housing side being the connection housing side ( 23 ) having the pneumatic connections ( 12 ), wherein the venting collection channel ( 14 ) has a longitudinal axis and is formed by a plurality of venting ch

Assignees

• Eto Magnetic Gmbh

Inventors

• Bunio Mariusz
• Bruczuk Witold
• Zinser Michael

Classifications

• F16K31/0651

  the fluid passing through the solenoid coil · CPC title

• F16K27/003 Primary

  Housing formed from a plurality of the same valve elements · CPC title

• F16K27/0263

  multiple way valves · CPC title

• F16K31/0675

  Electromagnet aspects, e.g. electric supply therefor · CPC title

• F16K31/0606

  fluid passing through the solenoid coil · CPC title