Proportional valve assembly for refrigerant

Patent metadata

Field	Value
Publication number	US-12498151-B2
Application number	US-202118265296-A
Country	US
Kind code	B2
Filing date	Oct 13, 2021
Priority date	Dec 18, 2020
Publication date	Dec 16, 2025
Grant date	Dec 16, 2025

Abstract

This disclosure relates to a proportional valve arrangement for refrigerants, with a valve housing comprising a valve body chamber, a valve body which is arranged inside the valve body chamber and which is configured to be transferable between a first sealing seat and a second sealing seat. An electrically actuable drive is connected to the valve body via a spindle. A locking device is arranged between the spindle and the valve body and is configured to generate an axial preload between the valve body and the first sealing seat when the valve body abuts against the first sealing seat and for generating an axial preload between the valve body and the second sealing seat when the valve body abuts against the second sealing seat.

First claim

The invention claimed is:

1 . A proportional valve arrangement for refrigerant comprising:
a valve housing comprising a valve body chamber, a valve body arranged within the valve body chamber, the valve body configured to be transferable between a first sealing seat and a second sealing seat, an electrically operable drive connected to the valve body via a spindle, wherein, a closing device is arranged between the spindle and the valve body, the closing device is configured to generate an axial preload between the valve body and the first sealing seat to close the first sealing seat when the valve body abuts against the first sealing seat, the closing device is configured to generate an axial preload between the valve body and the second sealing seat to close the second sealing seat when the valve body abuts against the second sealing seat.

2 . The proportional valve arrangement according to claim 1 , wherein the valve body comprises a stepped mounting space to receive the spindle and the closing device.

3 . The proportional valve arrangement according to claim 1 , wherein the closing device comprises a spring element arranged coaxially with respect to the spindle.

4 . The proportional valve arrangement according to claim 3 ,
wherein the valve body comprises a stepped mounting space to receive the spindle and the closing device, and wherein the spring element is configured to cause an axial preload between the spindle and a first stop of the stepped mounting space.

5 . The proportional valve arrangement according to claim 3 ,
wherein the valve body comprises a stepped mounting space to receive the spindle and the closing device, and wherein the spring element is configured to cause an axial preload between the spindle and a second stop of the stepped mounting space.

6 . The proportional valve arrangement according to claim 1 , wherein the spindle is arranged connected to a hollow shaft in a self-locking manner.

7 . The proportional valve arrangement according to claim 1 , wherein the valve housing comprises an inflow port and at least one outflow port.

8 . The proportional valve arrangement according to claim 7 , wherein the proportional valve arrangement comprises a pressure bypass which connects the outflow port to the valve body chamber.

9 . The proportional valve arrangement according to claim 8 , wherein the pressure bypass comprises a communication link through the valve body.

10 . The proportional valve arrangement according to claim 9 ,
wherein the valve body comprises a stepped mounting space configured to receive the spindle and the closing device, and wherein the stepped mounting space for receiving the spindle and the closing device arranged in the communication link of the valve body.

11 . The proportional valve arrangement according to claim 1 , wherein the valve body comprises a spherical section which is transferably arranged between the first sealing seat and the second sealing seat.

12 . The proportional valve arrangement according to claim 1 , wherein the drive is configured to proportionally actuate the valve body.

13 . The proportional valve arrangement according to claim 12 , wherein the drive is at least partially arranged in the valve body chamber.

14 . The proportional valve arrangement according to claim 1 , wherein the drive comprises a stepper motor.

15 . A proportional valve arrangement for refrigerant comprising:
a valve housing comprising a valve body chamber, a valve body which is arranged within the valve body chamber and which is configured to be transferable between a first sealing seat and a second sealing seat, an electrically operable drive which is connected to the valve body via a spindle, wherein: a closing device is arranged between the spindle and the valve body; wherein
the closing device is configured to generate an axial preload between the valve body and the first sealing seat when the valve body abuts against the first sealing seat;
the closing device is configured to generate an axial preload between the valve body and the second sealing seat when the valve body abuts against the second sealing seat;
the valve body comprises a stepped mounting space configured to receive the spindle and the closing device;
the closing device comprises a spring element arranged coaxially with respect to the spindle;
the spring element is configured to cause an axial preload between the spindle and a first stop of the stepped mounting space; and
the spring element is configured to cause an axial preload between the spindle and a second stop of the stepped mounting space.

Assignees

• ECO Holding 1 GmbH

Inventors

• Maisch Dieter
• Weber Hartmut
• Schneider Toni
• Möhring Jens

Classifications

• Y10T137/86622

  Motor-operated · CPC title

• F16K11/056

  with ball-shaped valve members · CPC title

• F16K11/044 Primary

  with movable valve members positioned between valve seats · CPC title

• F16K31/047

  characterised by mechanical means between the motor and the valve, e.g. lost motion means reducing backlash, clutches, brakes or return means (F16K31/043 takes precedence) · CPC title

• Y02B30/70

  Efficient control or regulation technologies, e.g. for control of refrigerant flow, motor or heating · CPC title