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JPS5339263A Expired / Lapsed JP ⏱️ 0.0 years remaining

Changeover controller for reversible heat exchange of air separation apparatus

Assignee: Hitachi Ltd
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Filing: 1976-09-24
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Granted: —
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Expires: 1996-09-24
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Abstract

Abstract PURPOSE: To make automatic the elongation of changeover period of the reversible heat exchange, by converting the analog signals of linear change to the pulse series of repeating frequency, inputting to the preset counter and using the output as the signals for the changeover period. COPYRIGHT: (C)1978,JPO&Japio

Inventors

  • 👤 Seiji Nozawa

Bibliographic Details

Application Number —
Jurisdiction JP
Data Source google_patents
Last Synchronized 2026-11-05 20:24
CPC Classifications
—

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