公开(公告)号：WO2012119602A1

公开(公告)日：2012-09-13

申请号：PCT/DK2012/000019

申请日：2012-03-08

Applicant: DANFOSS A/S ,  FOSEL, Georg ,  THYBO, Claus

Inventor： FOSEL, Georg ,  THYBO, Claus

IPC: F25B41/06

CPC classification number: G05D7/014 ,  F25B41/043 ,  F25B41/062 ,  F25B2341/061 ,  Y10T137/777 ,  Y10T137/86694

Abstract: An expansion valve (16) for a vapour compression system (1) and a vapour compression system (1) are disclosed. The expansion valve (16) comprises a first valve member (17), a second valve member (20) and a third valve member (21), said valve members (17, 20, 21) being arranged in such a manner that relative movements at least between the first valve member (17) and the second valve member (20), and between the first valve member (17) and the third valve member (21) are possible. The expansion valve (16) is switchable between a first state in which an opening degree of the expansion valve (16) is determined by the relative position of the first valve member (17) and the second valve member (20), and a second state in which an opening degree of the expansion valve (16) is determined by the relative position of the first valve member (17) and the third valve member (21). The expansion valve (16) is automatically moved between the first state and the second state in response to a change in direction of fluid flow through the expansion valve (16). The expansion valve (16) is suitable for use in a vapour compression system (1) being capable of selectively operating in air condition mode or heat pump mode, and where reversal of refrigerant flow is therefore necessary. The expansion valve (16) automatically ensures that expanded refrigerant is supplied to a relevant heat exchanger (3, 4), thereby ensuring proper operation of the vapour compression system in air condition mode as well as in heat pump mode.

Abstract translation: 公开了一种用于蒸气压缩系统（1）和蒸汽压缩系统（1）的膨胀阀（16）。 膨胀阀（16）包括第一阀构件（17），第二阀构件（20）和第三阀构件（21），所述阀构件（17,20,21）以相对运动 至少在第一阀构件（17）和第二阀构件（20）之间以及第一阀构件（17）和第三阀构件（21）之间是可能的。 膨胀阀（16）可以在膨胀阀（16）的开度由第一阀构件（17）和第二阀构件（20）的相对位置确定的第一状态和第二状态之间切换，第二状态 膨胀阀（16）的开度由第一阀构件（17）和第三阀构件（21）的相对位置决定的状态。 响应于通过膨胀阀（16）的流体流动方向的变化，膨胀阀（16）在第一状态和第二状态之间自动移动。 膨胀阀（16）适用于能够选择性地在空调模式或热泵模式下操作的蒸气压缩系统（1），因此需要制冷剂流动的反转。 膨胀阀（16）自动确保向相关的热交换器（3,4）供应膨胀的制冷剂，从而确保蒸汽压缩系统在空调模式以及热泵模式下的正常运行。

公开(公告)号：EP2683995B1

公开(公告)日：2015-04-22

申请号：EP12710863.7

申请日：2012-03-08

Applicant: Danfoss A/S

Inventor： FOSEL, Georg ,  THYBO, Claus

IPC: F25B41/06

CPC classification number: G05D7/014 ,  F25B41/043 ,  F25B41/062 ,  F25B2341/061 ,  Y10T137/777 ,  Y10T137/86694

公开(公告)号：EP2683995A1

公开(公告)日：2014-01-15

申请号：EP12710863.7

申请日：2012-03-08

Applicant: Danfoss A/S

Inventor： FOSEL, Georg ,  THYBO, Claus

IPC: F25B41/06

CPC classification number: G05D7/014 ,  F25B41/043 ,  F25B41/062 ,  F25B2341/061 ,  Y10T137/777 ,  Y10T137/86694

Abstract: An expansion valve (16) for a vapour compression system (1) and a vapour compression system (1) are disclosed. The expansion valve (16) comprises a first valve member (17), a second valve member (20) and a third valve member (21), said valve members (17, 20, 21) being arranged in such a manner that relative movements at least between the first valve member (17) and the second valve member (20), and between the first valve member (17) and the third valve member (21) are possible. The expansion valve (16) is switchable between a first state in which an opening degree of the expansion valve (16) is determined by the relative position of the first valve member (17) and the second valve member (20), and a second state in which an opening degree of the expansion valve (16) is determined by the relative position of the first valve member (17) and the third valve member (21). The expansion valve (16) is automatically moved between the first state and the second state in response to a change in direction of fluid flow through the expansion valve (16). The expansion valve (16) is suitable for use in a vapour compression system (1) being capable of selectively operating in air condition mode or heat pump mode, and where reversal of refrigerant flow is therefore necessary. The expansion valve (16) automatically ensures that expanded refrigerant is supplied to a relevant heat exchanger (3, 4), thereby ensuring proper operation of the vapour compression system in air condition mode as well as in heat pump mode.