NEGATIVE PRESSURE CONTROL VALVE DEVICE OF INTERNAL COMBUSTION ENGINE

PROBLEM TO BE SOLVED: To install a stopper plate to control the displacement in the axial direction of a valve stem between the bearing part of a valve housing and the bracket of an actuator. SOLUTION: A negative pressure control valve device 21 comprises a valve housing 22, a valve stem 27, a valve...

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Bibliographic Details
Main Author KANEKO KAZUHISA
Format Patent
LanguageEnglish
Published 25.08.1998
Edition6
Subjects
ACTUATING-FLOATS
BLASTING
CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TOTRANSPORTATION
COCKS
COMBUSTION ENGINES
CONTROLLING COMBUSTION ENGINES
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
HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
LIGHTING
MECHANICAL ENGINEERING
SUPPLYING COMBUSTION ENGINES IN GENERAL, WITH COMBUSTIBLEMIXTURES OR CONSTITUENTS THEREOF
TAPS
TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINSTCLIMATE CHANGE
THERMAL INSULATION IN GENERAL
VALVES
WEAPONS
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Summary:PROBLEM TO BE SOLVED: To install a stopper plate to control the displacement in the axial direction of a valve stem between the bearing part of a valve housing and the bracket of an actuator. SOLUTION: A negative pressure control valve device 21 comprises a valve housing 22, a valve stem 27, a valve plate 28, and an actuator 32. Also bearing parts 22B and 22C are installed in the bearing housing 22. Then a stopper plate 29 is fitted loosely into the recessed groove 27A of the valve stem 27 on its inner peripheral side, and held between the bearing part 22B and the bracket 41 on the outer peripheral side. Under this condition, the displacement of the valve stem 27 in axial direction is controlled. In addition, a lip seal 43 is provided inside the bearing part 22B, and held at this position by the stopper plate 29. Thus the displacement of the valve stem 21 in axial direction is securely controlled, the assembly workability of the negative control valve device 21 is increased, and the number of parts of the device is reduced.
Bibliography:Application Number: JP19970044685