Supply apparatus for two receiving means having a pressure summation device
원문보기
IPC분류정보
국가/구분
United States(US) Patent
등록
국제특허분류(IPC7판)
F15B-011/16
출원번호
US-0546830
(1975-02-03)
우선권정보
FR-0003659 (1974-02-04)
발명자
/ 주소
Jacob Rene F. (Le-Plessis-Belleville FR) Fillion Pierre C. (Nanteuil-le-Haudouin FR)
출원인 / 주소
Poclain (Le-Plessis-Belleville FR 03)
인용정보
피인용 횟수 :
11인용 특허 :
0
초록▼
The invention relates to a supply apparatus for two receiving means having a pressure summation device. A relief valve with a double control system is provided on a pipe shunted to the delivery pipe of the pump and has two control connections, a rod connecting the discharge member of the pressure su
The invention relates to a supply apparatus for two receiving means having a pressure summation device. A relief valve with a double control system is provided on a pipe shunted to the delivery pipe of the pump and has two control connections, a rod connecting the discharge member of the pressure summation device to the first of the said connections and a control pipe connecting that portion of the discharge pipe located between the connection of the latter to the delivery pipe and the relief valve to the second of the said connections. The invention is applicable to the realization of a supply apparatus with a pressure transfer system.
대표청구항▼
A hydraulic power supply system for supplying pressurized fluid to first and second fluid operated means such as hydraulic motors, said system comprising pressurized fluid source means, a flow divider having an inlet and first and second outlets, a delivery pipe connecting said pressurized fluid sou
A hydraulic power supply system for supplying pressurized fluid to first and second fluid operated means such as hydraulic motors, said system comprising pressurized fluid source means, a flow divider having an inlet and first and second outlets, a delivery pipe connecting said pressurized fluid source means to said inlet of said flow divider, first and second main pipes each of which is connected on one end to one of the fluid operated means and on an opposite end to one of the outlets of said flow divider, a pressure summation device having first and second inlets, a first auxiliary pipe connecting one of said main pipes to said first inlet of said pressure summation device, a second auxiliary pipe connecting the other one of said main pipes to said second inlet of said pressure summation device, a shunt discharge pipe connected on one end to said delivery pipe, a calibrated relief valve positioned in said shunt discharge pipe and including a movable valving member mounted for movement between an open position in which flow through said shunt discharge pipe is permitted and a closed position in which flow through said shunt discharge pipe is prevented, said valving member being urged toward said open position by the pressure of fluid in the portion of said discharge pipe located between the connection of the discharge pipe to the delivery pipe and the calibrated relief valve, said pressure summation device including an enclosure defining first and second cylinder sections, a double piston having first and second piston portions of different cross-sectional area, said first piston portion being mounted for reciprocation in said first cylinder section and said second piston portion being mounted for reciprocation in said second cylinder section, said first and second piston portions having faces in first and second chambers of said enclosure, said first and second inlets of said pressure summation device being connected to respective ones of said first and second chambers, wherein said double piston comprises a movable output member which exerts a force which is indicative of the sum of the pressures suppliEd to said first and second inlets of the pressure summation device and means mechanically connecting said double piston to said movable valving member of said relief valve for urging said movable member with progressively increasing force toward its open position as the sum of the pressures in the inlets of said pressure summation device increases. An apparatus for supplying pressurized fluid to first and second fluid operated means, said apparatus comprising first and second pressurized fluid sources, a first main pipe connected on one end to said first pressurized fluid source and connected on an opposite end to said first fluid operated means, a second main pipe connected on one end to said second pressurized fluid source and connected on an opposite end to said second fluid operated means, a pressure summation device having first and second pressure input inlets and a movable output member, a first auxiliary pipe connected on one end to said first main pipe and connected on an opposite end to said first pressure input inlet of said pressure summation device, a second auxiliary pipe connected on one end to said second main pipe and connected on an opposite end to said second pressure input inlet of said pressure summation device, connecting pipe means extending between said first main pipe and said second main pipe, shuttle valve means mounted in said connecting pipe means, said shuttle valve means having a discharge outlet, a discharge pipe connected to said discharge outlet of said shuttle valve means, a calibrated relief valve mounted in said discharge pipe, said calibrated relief valve having a movable valving member movable between an open position and in which flow through said discharge pipe is freely permitted and a closed position blocking flow through said open position by the pressure of fluid in the portion of said discharge pipe located between the outlet of said shuttle valve and said calibrated relief valve, said fluid pressure in said portion of said discharge pipe being applied to said movable valving member by a control pipe connected to said portion of said discharge pipe on one end and on an opposite end to the body of said relief valve, said pressure summation device comprising an enclosure providing first and second cylinder sections, a double piston having first and second piston portions respectively mounted in said first and second cylinder sections, said first and second piston portions having faces in first and second chambers in said enclosure, said first and second inlets of said pressure summation device being connected to respective ones of said first and second chambers and means mechanically connecting said double piston to said movable valving member of said calibrated relief valve so that the sum of the pressures in said first and second inlets of the pressure summation device results in a force exerted by said double piston which is in proportion to the sum of said pressures urging said movable valving member toward said open position.
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이 특허를 인용한 특허 (11)
Mickelson Roger D. (West Burlington IA), Common relief valve.
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