Valve with electrodynamic actuator

Patent metadata

Field	Value
Publication number	US-2020408325-A1
Application number	US-202017021155-A
Country	US
Kind code	A1
Filing date	Sep 15, 2020
Priority date	Dec 22, 2017
Publication date	Dec 31, 2020
Grant date	—

Abstract

A valve with an electrodynamic actuator includes a magnet device that generates a magnetic field and a drive element that is movable relative to the magnet device. The drive element is pivotally mounted and comprises a current-carrying air coil that is arranged in the magnetic field and is fixedly coupled to a coil carrier made of a non-magnetic material. Sealing surfaces for sealing valve seats are arranged on two opposite sides of the drive element, such that the sealing surfaces face in opposite directions. A housing is comprised of a plurality of plastic housing parts and a metallic encasement. The metallic encasement surrounds an upper area of the housing in which the electrodynamic actuator is arranged and at least partially surrounds a lower area of the housing in which fluid channels are arranged.

First claim

1 . A valve with an electrodynamic actuator comprising:
a magnet device that generates a magnetic field; a drive element being movable relative to the magnet device, the drive element being pivotally mounted and comprising a current-carrying air coil that is arranged in the magnetic field and is fixedly coupled to a coil carrier made of a non-magnetic material, wherein sealing surfaces for sealing valve seats are arranged on two opposite sides of the drive element, such that the sealing surfaces face in opposite directions; and a housing comprised of a plurality of plastic housing parts and a metallic encasement, wherein the metallic encasement surrounds an upper area of the housing in which the electrodynamic actuator is arranged and at least partially surrounds a lower area of the housing in which fluid channels are arranged.

2 . The valve according to claim 1 , wherein the metallic encasement comprises two sheathing parts which are inserted into each other and which are at least partially inserted over the plurality of plastic housing parts.

3 . The valve according to claim 1 , wherein the metallic encasement has extensions extending into the lower area of the housing.

4 . The valve according to claim 1 , wherein the plurality of plastic housing parts have mounting areas with which the plurality of plastic housing parts engage in the metallic encasement.

5 . The valve according to claim 4 , wherein the mounting areas engage with extensions of the metallic encasement.

6 . The valve according to claim 4 , wherein elevations are provided in the mounting areas.

7 . The valve according to claim 6 , wherein a height of the elevations is selected such that a sufficient clamping force is achieved between the plurality of plastic housing parts and the metallic encasement.

8 . The valve according to claim 6 , wherein indentations are located directly adjacent to the elevations.

9 . The valve according to claim 1 , wherein a fluid plate is molded to the plurality of plastic housing parts.

10 . The valve according to claim 9 , wherein the fluid channels are formed in the fluid plate.

11 . The valve according to claim 2 , wherein the two sheathing parts each have flaps widening in a direction away from the respective sheathing part.

12 . The valve according to claim 11 , wherein the flaps engage in corresponding recesses of the respective other sheathing part in order to fasten the two sheathing parts together.

13 . The valve according to claim 1 , wherein a further plastic housing part forms a cover which closes the housing.

14 . The valve according to claim 1 , wherein, when assembled, all housing parts of the plurality of housing parts form a uniform surface.

Assignees

• Buerkert Werke Gmbh & Co Kg

Inventors

• Scheibe Ralf
• Hettinger Sebastian
• Ripsam Christina
• Schwab Holger
• Knauss Simone
• Baumann Johannes
• Hartmann Christian
• Kuenzler Rainer

Classifications

• Y10T137/87885

  Sectional block structure · CPC title

• Y10T137/86622

  Motor-operated · CPC title

• Y10T137/5987

  Solenoid or electromagnetically operated valve · CPC title

• F16K31/0682

  with an articulated or pivot armature · CPC title

• F16K31/0627

  with movable valve member positioned between seats · CPC title