Proportional valve assembly for refrigerants

Patent metadata

Field	Value
Publication number	US-12410955-B2
Application number	US-202118265301-A
Country	US
Kind code	B2
Filing date	Oct 13, 2021
Priority date	Dec 18, 2020
Publication date	Sep 9, 2025
Grant date	Sep 9, 2025

Abstract

This disclosure relates to a proportional valve arrangement for refrigerant, with a valve housing having a valve body chamber, a valve body which is arranged within the valve body chamber and configured to be transferable between a first position and a second position. The valve housing includes a first sealing seat and a second sealing seat, and the valve body which is transferable between the first sealing seat and 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, and
a valve body arranged within the valve body chamber, the valve body configured to be transferable between a first position and a second position,
wherein the valve housing comprises a first sealing seat and a second sealing seat, and the valve body is arranged to be transferable between the first sealing seat and the second sealing seat,
wherein the valve body comprises a first guide section, a second guide section, and a spherical section arranged between the first guide section and the second guide section, the first guide section and the second guide section configured to guide the valve body in the valve housing and the spherical section arranged to be transferable between abutment with the first sealing seat and abutment with the second sealing seat, and
wherein no return spring acting on the second guide section for closing the proportional valve arrangement is provided in the proportional valve arrangement,
wherein the valve housing comprises an inflow port, a first outflow port and a second outflow port, and
wherein the proportional valve arrangement comprises a pressure bypass connecting the second outlet port to the valve body chamber.

2. The proportional valve arrangement according to claim 1 , further comprising a first clearance formed between the first guide section and the spherical section.

3. The proportional valve arrangement according to claim 2 , wherein in a state in which the valve body abuts the first sealing seat, an axial projection surface of the first clearance in a direction of the first guide section comprises a same size as an axial projection surface of the first clearance in a direction of the spherical section.

4. The proportional valve arrangement according to claim 1 , further comprising a second clearance formed between the second guide section and the spherical section.

5. The proportional valve arrangement according to claim 4 , wherein in a state in which the valve body abuts the second sealing seat, an axial projection surface of the second clearance in a direction of the spherical section comprises a same size as an axial projection surface of the second clearance in a direction of the second guide section.

6. The proportional valve arrangement according to claim 1 , wherein the pressure bypass comprises a communication link through the valve body.

7. The proportional valve arrangement according to claim 1 , wherein the proportional valve arrangement comprises an electrically actuable drive configured to proportionally actuate the valve body.

8. The proportional valve arrangement according to claim 7 , wherein the drive is at least partially arranged within the valve body chamber.

9. The proportional valve arrangement according to claim 7 , wherein the drive comprises a stepper motor connected to the valve body via a spindle.

10. The proportional valve arrangement according to claim 9 , wherein the spindle is arranged connected to a hollow shaft in a self-locking manner.

Assignees

• ECO Holding 1 GmbH

Inventors

• Maisch Dieter
• Weber Hartmut

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