Fluid pressure control valve apparatus

In a fluid pressure control valve apparatus (1), a stepped bore (4) is made in a main body (2), in communication with input and output openings (23,24). A cover member (5,13) is inserted in the input opening (23) with a stepped piston (8) slidably fitted into the stepped bore (4). A path (9) is form...

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Bibliographische Detailangaben
Hauptverfasser:	KANEKO, TAKESHI, MATUO, AKIRA
Format:	Patent
Sprache:	eng ; fre ; ger
Schlagworte:	ACTUATING-FLOATS ARRANGEMENT OF BRAKING ELEMENTS ON VEHICLES IN GENERAL BLASTING BRAKE CONTROL SYSTEMS OR PARTS THEREOF, IN GENERAL 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 PERFORMING OPERATIONS PORTABLE DEVICES FOR PREVENTING UNWANTED MOVEMENT OFVEHICLES 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 TRANSPORTING VALVES VEHICLE BRAKE CONTROL SYSTEMS OR PARTS THEREOF VEHICLE MODIFICATIONS TO FACILITATE COOLING OF BRAKES VEHICLES IN GENERAL WEAPONS
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Beschreibung
Zusammenfassung:	In a fluid pressure control valve apparatus (1), a stepped bore (4) is made in a main body (2), in communication with input and output openings (23,24). A cover member (5,13) is inserted in the input opening (23) with a stepped piston (8) slidably fitted into the stepped bore (4). A path (9) is formed in the stepped piston (8), one end of the path communicating with a through hole (5a) of the cover member (5,13) and another end of the path communicating with the output opening side; a valve seat (11) is formed at the one end of the path (9). A valve body (14) is seatable on, and separable from, the valve seat (11) and is arranged in a valve chamber (10) formed in the through hole (5a). A retainer member (16,33) is arranged at the input opening side of the cover member (5,13), supporting one end of a valve spring (17); a pre-loaded spring (12) biases the stepped piston (8) away from the valve body (14). An annular thin projecting portion (18) is formed integrally with the main body (2) at the input opening side, projecting outwards from the end of the cover member (5,13) such that the cover member (5,13) is fixed to the main body (2) by deforming plastically the annular thin projecting portion (18) towards the cover member (5,13). An outer circumferential portion (16a,33a) of the retainer member (16,33) is held between the deformed annular thin projecting portion (18) and the cover member (5,13).