VALVE FOR VACUUM PRESSURE REGULATION

PROBLEM TO BE SOLVED: To provide a valve for vacuum pressure regulation of simple constitution capable of improving the rate-of-flow characteristics when a vacuum chamber is to be decompressed. SOLUTION: The valve for vacuum pressure regulation is composed of a large-sized main valve 1A having two m...

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Bibliographische Detailangaben
1. Verfasser:	KAJITANI MASAO
Format:	Patent
Sprache:	eng
Schlagworte:	ACTUATING-FLOATS BLASTING COCKS DEVICES FOR VENTING OR AERATING ENGINEERING ELEMENTS AND UNITS GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVEFUNCTIONING OF MACHINES OR INSTALLATIONS GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS HEATING LIGHTING MECHANICAL ENGINEERING TAPS TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION TECHNICAL SUBJECTS COVERED BY FORMER USPC TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS THERMAL INSULATION IN GENERAL VALVES WEAPONS
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Beschreibung
Zusammenfassung:	PROBLEM TO BE SOLVED: To provide a valve for vacuum pressure regulation of simple constitution capable of improving the rate-of-flow characteristics when a vacuum chamber is to be decompressed. SOLUTION: The valve for vacuum pressure regulation is composed of a large-sized main valve 1A having two main ports 11 and 12 connected with the vacuum chamber 7 and a vacuum pump 8, a main seat 14 in the passage tying together the main ports 11 and 12, a main valve member 15 to open and close the main seat 14, a main valve body 4 having a main valve shaft 20 extending from the main valve member 15, and a main valve operation part 5 to open and close the main valve member 15 through the main valve shaft 20, and a small-sized auxiliary valve 2A having a similar constitution to the above. The auxiliary valve 2A is attached to the outer side face of the housing 10 of the main valve 1A. COPYRIGHT: (C)2005,JPO&NCIPI