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JP-7856282-B2 - Multidirectional valve for controlling the refrigerant circuit

JP7856282B2JP 7856282 B2JP7856282 B2JP 7856282B2JP-7856282-B2

Inventors

  • ボーネンシュテンゲル，ペーター
  • ドルン，クリスティアン
  • エーメン，アンドレアス
  • ケストラー，ハンス
  • マウラー，ライナー
  • フォン・ラート，フォルカー
  • シャウヴェッカー，カイ

Assignees

  • オットー・エゲルホフ・ゲーエムベーハー・ウント・コンパニ・カーゲー

Dates

Publication Date
20260511
Application Date
20211115
Priority Date
20201127

Claims (20)

  1. A multi-directional valve for controlling the refrigerant circuit of a cooling system having a heat pump function, wherein the multi-directional valve is - A housing (12) having two end faces (18, 19) that are opposite to each other or assigned to each other, wherein the first end face (18) of the two end faces (18, 19) has an insertion opening (29 ) adjacent to a first adjustment chamber (31 ) , and the second end face (19) of the end faces (18, 19) has an insertion opening (30) adjacent to a second adjustment chamber (32) , - A first multidirectional valve device (21) insertable into the first adjustment chamber (31 ) , and a second multidirectional valve device (22) insertable into the second adjustment chamber (32) , wherein each of the first and second multidirectional valve devices (21, 22) comprises at least one base (41) and rotary sliding valve devices (51, 52), - The respective connection parts (25, 16) within the housing (12) that open to the first and second adjustment chambers (31, 32), - At least further connection parts (26, 27) within the housing (12) , It has, At least one of the further connecting parts (26, 27) (26) opens to the first passage (34), and at least one of the further connecting parts (26, 27) (27) opens to the second passage (35). The first and second passages (34, 35) extend between the first and second multidirectional valve devices (21, 22) provided in the first and second adjustment chambers (31, 32), and are multidirectional valves.
  2. The multi-directional valve according to claim 1, characterized in that the housing (12) comprises two adjustment chambers (31, 32), and the two adjustment chambers (31, 32) are aligned with each other at an angle between 90° and 179°, or aligned along the longitudinal axis of the housing (12).
  3. The multidirectional valve according to claim 1, characterized in that the insertion openings (29, 30) within the housing (12) are each closed by the base (41) of each of the multidirectional valve devices (21, 22).
  4. The multidirectional valve according to claim 1, characterized in that the rotary sliding valve devices (51, 52) are each driven by the respective shafts (43) of the multidirectional valve devices (21, 22), and the shafts (43) arranged relative to each other within the housing (12) are aligned along a common longitudinal axis (33).
  5. The multidirectional valve according to claim 1, characterized in that the opposing adjustment chambers (31, 32) are connected to two passages (34, 35) arranged along the longitudinal axis (33) of the housing (12) and extend from the two rotary sliding valve devices (51, 52) of the multidirectional valve device (21, 22).
  6. The multi-directional valve according to claim 1, characterized in that at least one connection portion (16, 25) opening into the adjustment chambers (31, 32) is oriented tangentially to the adjustment chambers (31, 32).
  7. The multidirectional valve according to claim 1, characterized in that the at least one connection portion (16, 25) opening into the adjustment chambers (31, 32), and the at least one connection portion (26, 27) provided between the two rotary sliding valve devices (51, 52) of the multidirectional valve device (21, 22), are aligned in the same direction on the housing (12).
  8. The multidirectional valve according to claim 1, characterized in that the housing (12) has at least a rectangular cross-section and at least one connecting portion (25) located within the adjustment chamber (31), the connecting portions (26, 27) opening into the passages (34, 35) are aligned on the same side of the housing (12), and at least one further connecting portion (16) of a further adjustment chamber (32) is aligned on an adjacent or opposing side of the housing (12).
  9. Each of the aforementioned multidirectional valve devices (21, 22) is equipped with a drive unit (23), and the drive unit (23) drives a shaft (34) connected to the rotary sliding valve devices (51, 52), as described in claim 1.
  10. The multidirectional valve according to claim 1, characterized in that the first multidirectional valve device (21) and the second multidirectional valve device (22) can be driven by a common control.
  11. The multidirectional valve according to claim 9, characterized in that the drive unit (23) of the multidirectional valve device (21, 22) comprises a flat rectangular housing, and the longitudinal axis (24) of the housing of the drive unit (23) is oriented differently from the lateral side of the housing (12) on which the plurality of connection parts (25, 26, 27) are provided.
  12. The multi-directional valve according to claim 1, characterized in that the side surface of the housing (12) lacks connection parts (16, 25, 26, 27) and forms an arrangement interface.
  13. The multidirectional valve according to claim 1, characterized in that, at all switching positions of the rotary sliding valve devices (51, 52), the one connection portion (25) connected to the adjustment chamber (31) is positioned as a refrigerant inlet, and the first multidirectional valve device (21) is positioned on the high-pressure side of the housing (12).
  14. The multidirectional valve according to claim 13, characterized in that the second multidirectional valve device (22), opposite to the first multidirectional valve device (21), is arranged on the low-pressure side of the housing (12).
  15. The multidirectional valve according to claim 1, characterized in that the first multidirectional valve device (21) and the second multidirectional valve device (22) each have at least one sealing body (42) provided on the outer circumference of the base body (41).
  16. The multi-directional valve according to claim 1, characterized in that the first multi-directional valve device (21) and the second multi-directional valve device (22) are provided with a drive unit (53) between the base body (41) and the rotary sliding valve devices (51, 52), the drive unit (53) is rotatably driven by the shaft (43), and drives the respective rotary sliding valves (54, 55) of the rotary sliding valve devices (51, 52) to be rotatably driven.
  17. The multidirectional valve according to claim 1, characterized in that the first multidirectional valve device (21) is insertable into the adjustment chamber (31), the connection portion (25) designed as an inlet is pressurizable, and refrigerant is transported to one or both passages (34, 35), and the rotary sliding valve device (51) of the first multidirectional valve device (21) is formed by a first rotatable rotary sliding valve ( 54 ) and a second rotary sliding support ( 57 ), and the second rotary sliding support (57) is in contact with and held against the bottom (75) of the adjustment chamber ( 32 ) under refrigerant pressure.
  18. The multi-directional valve according to claim 1, characterized in that the rotary sliding valve device (52) of the second multi-directional valve device (22) is configured such that the refrigerant flows from the two passages (34, 35) to the adjustment chamber (32), and first acts on the second rotary sliding support (57).
  19. The multidirectional valve according to claim 18, wherein the second rotary sliding support (57) of the rotary sliding valve device (52) of the second multidirectional valve device (22) comprises two connecting bushings, the connecting bushings being at least partially insertable into the passages (34, 35), guided to be displaceable in the longitudinal direction within the passages (34, 35), and each being sealed from the passages (34, 35) by a sealing body, and the end faces of the connecting bushings facing the passages (34, 35) are provided with insertion chamfers (77).
  20. The multidirectional valve according to claim 1, characterized in that the first and second multidirectional valve devices (21, 22) are movable to a maximum of six different positions.

Description

This invention relates to a multi-directional valve for controlling a refrigerant circuit in a cooling system having a heat pump function. A multidirectional valve for controlling a refrigerant circuit is known from German Patent Application Publication No. 102017102841A1 (Patent Document 1). This multidirectional valve comprises a housing containing a rotary sliding valve device, and controls various switching positions via a motor-driven shaft. The housing includes a first inlet opening connected to a control chamber by a first fluid passage. A second connection opening within the housing is connected to a second fluid passage, which connects to the control chamber. A third and a fourth passage lead from the control chamber to an outlet connection, respectively. Multiple switching and service positions controlling the refrigerant circuit can be controlled by such a multidirectional valve. In this embodiment, the housing comprises a first housing half and a second housing half, the first and second housing halves having a rotary sliding valve device positioned within the control chamber and actuated by a shaft. German Patent Application Publication No. 102017102841A1 This is a perspective view of a multi-directional valve.Figure 1 is a schematic side view of a multi-directional valve.Figure 1 shows a schematic longitudinal cross-section of a multi-directional valve.This is a schematic enlarged view of the first multi-directional valve device of the multi-directional valve.This is a schematic enlarged cross-sectional view of the second multidirectional valve device of the multidirectional valve.Figure 1 is a schematic diagram of the refrigerant circuit configuration showing the first switching position of the multi-directional valve.Figure 6 shows a schematic diagram of the switching position of the multidirectional valve and a diagram of the rotary sliding valve device of the multidirectional valve device.Figure 6 shows a schematic diagram of the switching position of the multidirectional valve and a diagram of the rotary sliding valve device of the multidirectional valve device.Figure 6 shows a schematic diagram of the switching position of the multidirectional valve and a diagram of the rotary sliding valve device of the multidirectional valve device.This diagram shows a schematic representation of the switching position of the multi-directional valve in the direction of refrigerant flow, and a diagram of the rotary sliding valve device of the multi-directional valve system.This diagram shows a schematic representation of the switching position of the multi-directional valve in the direction of refrigerant flow, and a diagram of the rotary sliding valve device of the multi-directional valve system.This diagram shows a schematic representation of the switching position of the multi-directional valve in the direction of refrigerant flow, and a diagram of the rotary sliding valve device of the multi-directional valve system.This diagram shows a schematic representation of the switching positions of the multi-directional valve in the direction of refrigerant flow, and a diagram of the rotary sliding valve device.This diagram shows a schematic representation of the switching positions of the multi-directional valve in the direction of refrigerant flow, and a diagram of the rotary sliding valve device.This diagram shows a schematic representation of the switching positions of the multi-directional valve in the direction of refrigerant flow, and a diagram of the rotary sliding valve device.This diagram shows a schematic representation of the switching positions of the multi-directional valve in the direction of refrigerant flow, and a diagram of the rotary sliding valve device.This diagram shows a schematic representation of the switching positions of the multi-directional valve in the direction of refrigerant flow, and a diagram of the rotary sliding valve device.This diagram shows a schematic representation of the switching positions of the multi-directional valve in the direction of refrigerant flow, and a diagram of the rotary sliding valve device.This diagram shows a schematic representation of the switching positions of the multi-directional valve in the direction of refrigerant flow, and a diagram of the rotary sliding valve device.This diagram shows a schematic representation of the switching positions of the multi-directional valve in the direction of refrigerant flow, and a diagram of the rotary sliding valve device.This diagram shows a schematic representation of the switching positions of the multi-directional valve in the direction of refrigerant flow, and a diagram of the rotary sliding valve device.This diagram shows a schematic representation of the switching positions of the multi-directional valve in the direction of refrigerant flow, and a diagram of the rotary sliding valve device.This diagram shows a schematic representation of the switching positions of the multi-directional valve in the d