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JPH102284A Expired / Lapsed JP ⏱️ 0.0 years remaining

Variable displacement compressor and control method thereof

Assignee: Toyota Industries Corp
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Filing: 1996-06-17
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Granted: —
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Expires: 2016-06-17
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Abstract

Abstract Translated from Japanese (57)【要約】 【課題】 小さな動力で容量制御弁の開度制御を確実か つ正確に行うことのできる可変容量圧縮機及びその制御 方法を提供する。 【解決手段】 クランク室15と吐出室38との間の給 気通路48の途中に、その開度を調節するための容量制 御弁49を設ける。容量制御弁49には吸入通路32に 連通された感圧室71を設け、その感圧室71には吸入 圧の変動を前記給気通路48を開閉する弁体67に伝達 するためのベローズ73を収容する。車両の環境に応じ た目標電流値に対応する所定のデューティ比の電流を、 ソレノイド87に入力して前記弁体67への付与荷重を 変化させて設定吸入圧を変更する。ソレノイド87への 入力電流値をフィードバックして、その入力電流値と目 標電流値とを次第に一致させる。 (57) [Problem] To provide a variable displacement compressor which can surely and accurately control the opening degree of a displacement control valve with small power, and a control method thereof. SOLUTION: A displacement control valve 49 for adjusting the opening degree is provided in a supply passage 48 between a crank chamber 15 and a discharge chamber 38. The displacement control valve 49 is provided with a pressure-sensitive chamber 71 communicating with the suction passage 32, and the pressure-sensitive chamber 71 has a bellows 73 for transmitting a change in suction pressure to a valve body 67 that opens and closes the air supply passage 48. To accommodate. A current having a predetermined duty ratio corresponding to a target current value according to the environment of the vehicle, The set suction pressure is changed by inputting to the solenoid 87 to change the load applied to the valve body 67. The input current value to the solenoid 87 is fed back to gradually match the input current value with the target current value.

Inventors

  • 👤 Masahiro Kawaguchi
  • 👤 真広 川口
  • 👤 Masanori Sonobe
  • 👤 正法 園部
  • 👤 Yuji Kubo
  • 👤 裕司 久保
  • 👤 Tetsuhiko Fukanuma
  • 👤 哲彦 深沼

Bibliographic Details

Application Number —
Jurisdiction JP
Data Source google_patents
Last Synchronized 2026-10-25 04:28
CPC Classifications
F; F04; F04B; F04B27/00; F04B27/08; F04B27/14; F04B27/16; F04B27/18; F04B27/1804; F04B2027/1822; F04B2027/1827; F04B2027/184; F04B2027/1854; F04B2027/1859

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