SELECTOR VALVE UNIT
To provide a selector valve unit for switching a circulation passage of a refrigerant inexpensively.SOLUTION: A selector valve unit 10 includes: a body 20 having a high pressure passage 40, a low pressure passage 42, a first intermediate passage 44, a second intermediate passage 46, a first valve ho...
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Zusammenfassung: | To provide a selector valve unit for switching a circulation passage of a refrigerant inexpensively.SOLUTION: A selector valve unit 10 includes: a body 20 having a high pressure passage 40, a low pressure passage 42, a first intermediate passage 44, a second intermediate passage 46, a first valve hole 50 communicating the high pressure passage 40 with the first intermediate passage 44, a second valve hole 52 communicating the high pressure passage 40 with the second intermediate passage 46, a third valve hole 54 communicating the first intermediate passage 44 with the low pressure passage 42, a fourth valve hole 56 communicating the second intermediate passage 46 with the low pressure passage 42, and a high pressure leak passage 58 communicating the high pressure passage 40 with the first intermediate passage 44; a first valve drive body 60 closing the second valve hole 52 when the first valve hole 50 is opened, and closing the first valve hole 50 when the second valve hole 52 is opened; a second valve drive body 80 closing the fourth valve hole 56 when the third valve hole 54 is opened, and closing the third valve hole 54 when the fourth valve hole 56 is opened; and an electrically driven valve 26 opening and closing the high pressure leak passage 58 in accordance with an operation state of a refrigeration cycle.SELECTED DRAWING: Figure 2
【課題】冷媒の循環通路を切り替える切替弁ユニットを低コストに実現する。【解決手段】切替弁ユニット10は、高圧通路40、低圧通路42、第1中間通路44、第2中間通路46、高圧通路40と第1中間通路44とを連通させる第1弁孔50、高圧通路40と第2中間通路46とを連通させる第2弁孔52、第1中間通路44と低圧通路42とを連通させる第3弁孔54、第2中間通路46と低圧通路42とを連通させる第4弁孔56、および高圧通路40と第1中間通路44とを連通させる高圧リーク通路58を有するボディ20と、第1弁孔50を開くときに第2弁孔52を閉じ、第2弁孔52を開くときに第1弁孔50を閉じる第1弁駆動体60と、第3弁孔54を開くときに第4弁孔56を閉じ、第4弁孔56を開くときに第3弁孔54を閉じる第2弁駆動体80と、冷凍サイクルの運転状態に応じて高圧リーク通路58を開閉する電気駆動弁26と、を備える。【選択図】図2 |
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