MY125686A - A hydraulic circuit system for actuating a hydraulic jack - Google Patents

A hydraulic circuit system for actuating a hydraulic jack

Info

Publication number
MY125686A
MY125686A MYPI97000731A MYPI9700731A MY125686A MY 125686 A MY125686 A MY 125686A MY PI97000731 A MYPI97000731 A MY PI97000731A MY PI9700731 A MYPI9700731 A MY PI9700731A MY 125686 A MY125686 A MY 125686A
Authority
MY
Malaysia
Prior art keywords
oil chamber
hydraulic
pump
circuit
valve
Prior art date
Application number
MYPI97000731A
Inventor
Michael Hung
Original Assignee
Mvp Hk Ind Ltd
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Mvp Hk Ind Ltd filed Critical Mvp Hk Ind Ltd
Priority to MYPI97000731A priority Critical patent/MY125686A/en
Publication of MY125686A publication Critical patent/MY125686A/en

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  • Fluid-Pressure Circuits (AREA)

Abstract

A HYDRAULIC CIRCUIT SYSTEM FOR A JACK COMPRISES AN INLET CIRCUIT, A RETURN CIRCUIT AND AN OVERLOAD PROTECTION CIRCUIT WITH A PISTON-CYLINDER ASSEMBLY (4, 10), A SEQUENCE VALVE (B), A SAFETY VALVE (D) AND A RELIEF VALVE (C), THE INLET CIRCUIT EXTENDING FROM AN OUTER RESERVOIR (2) VIA A CHECK VALVE (A1) TO AN OIL CHAMBER (3) OF A MANUAL PUMP (20), THE OIL CHAMBER (3) BEING CONNECTED TO AN INNER OIL CHAMBER (41) FORMED IN THE PISTON ROD (4) VIA ANOTHER CHECK VALVE (A2) TO FORM A CLOSED CIRCUIT. THE OIL CHAMBER (3) OF THE PUMP (20) IS CONNECTED TO AN INNER RESERVOIR (1) IN THE HYDRAULIC CYLINDER (10) VIA A SEQUENCE VALVE (B), AND THE INNER RESERVOIR (1) IS CONNECTED TO THE OUTER RESERVOIR (2) VIA A CHECK VALVE (A3). WHEN THE MAXIMUM EFFECT CAPACITY OF THE OIL CHAMBER (3) OF THE PUMP (20) A GREATER THAN OR EQUAL TO THAT OF THE INNER OIL CHAMBER (41) OF THE PISTON ROD (4), A SINGLE TOUCH OF THE PUMP (20) CAN RAISE THE HYDRAULIC JACK TO A REQUIRED LOADING POSITION UNDER NO LOAD OR LIGHT LOAD CONDITIONS.(FIG. 1)
MYPI97000731A 1997-02-26 1997-02-26 A hydraulic circuit system for actuating a hydraulic jack MY125686A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
MYPI97000731A MY125686A (en) 1997-02-26 1997-02-26 A hydraulic circuit system for actuating a hydraulic jack

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
MYPI97000731A MY125686A (en) 1997-02-26 1997-02-26 A hydraulic circuit system for actuating a hydraulic jack

Publications (1)

Publication Number Publication Date
MY125686A true MY125686A (en) 2006-08-30

Family

ID=47264540

Family Applications (1)

Application Number Title Priority Date Filing Date
MYPI97000731A MY125686A (en) 1997-02-26 1997-02-26 A hydraulic circuit system for actuating a hydraulic jack

Country Status (1)

Country Link
MY (1) MY125686A (en)

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