MULTIPLE HYDRAULIC SPOOL VALVE ASSEMBLY WITH MONOLITHIC BODY

PROBLEM TO BE SOLVED: To provide a body formable as a single integral part and storing a plurality of spool valves and the other control device. SOLUTION: In this monolithic body for a hydraulic valve assembly, the assembly of the plurality of hydraulic control valves is incorporated in the monolith...

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Bibliographische Detailangaben
1. Verfasser:	PIEPER GARY J
Format:	Patent
Sprache:	eng
Schlagworte:	ACTUATING-FLOATS BLASTING COCKS DETAILS OF FLUID-PRESSURE SYSTEMS, NOT OTHERWISE PROVIDED FOR DEVICES FOR VENTING OR AERATING DREDGING ENGINEERING ELEMENTS AND UNITS FIXED CONSTRUCTIONS FLUID-PRESSURE ACTUATORS FLUID-PRESSURE ACTUATORS, e.g. SERVO-MOTORS FOUNDATIONS 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 HYDRAULIC ENGINEERING HYDRAULICS OR PNEUMATICS IN GENERAL LIGHTING MECHANICAL ENGINEERING SOIL SHIFTING SYSTEMS ACTING BY MEANS OF FLUIDS IN GENERAL 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 body formable as a single integral part and storing a plurality of spool valves and the other control device. SOLUTION: In this monolithic body for a hydraulic valve assembly, the assembly of the plurality of hydraulic control valves is incorporated in the monolithic body 12. In each control valve, spool holes 23 and opening parts for pressure compensating valves are formed in the monolithic body. Each spool hole is connected to some return passages and supply passages passed through the monolithic body. A pair of workports 28 and 30 are connected to the spool holes. A relief valve return passage extends through the monolithic body and, if necessary, an opening part for a pressure relief valve extends from the relief valve return passage and the surface of the monolithic body crossing a specified workport. A load detection passage and a second supply passage are formed in the monolithic body. COPYRIGHT: (C)2004,JPO&NCIPI