GB879825A - Improvements in pressure-multiplying devices - Google Patents

Improvements in pressure-multiplying devices

Info

Publication number
GB879825A
GB879825A GB2523560A GB2523560A GB879825A GB 879825 A GB879825 A GB 879825A GB 2523560 A GB2523560 A GB 2523560A GB 2523560 A GB2523560 A GB 2523560A GB 879825 A GB879825 A GB 879825A
Authority
GB
United Kingdom
Prior art keywords
reservoir
plunger
pressure
hydraulic
piston
Prior art date
Legal status (The legal status 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 status listed.)
Expired
Application number
GB2523560A
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
AMP Inc
Original Assignee
AMP Inc
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
Priority to US829815A priority Critical patent/US2972867A/en
Application filed by AMP Inc filed Critical AMP Inc
Publication of GB879825A publication Critical patent/GB879825A/en
Application status is Expired legal-status Critical

Links

Classifications

    • BPERFORMING OPERATIONS; TRANSPORTING
    • B21MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
    • B21JFORGING; HAMMERING; PRESSING METAL; RIVETING; FORGE FURNACES
    • B21J15/00Riveting
    • B21J15/10Riveting machines
    • B21J15/16Drives for riveting machines; Transmission means therefor
    • B21J15/22Drives for riveting machines; Transmission means therefor operated by both hydraulic or liquid pressure and gas pressure
    • FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F15FLUID-PRESSURE ACTUATORS; HYDRAULICS OR PNEUMATICS IN GENERAL
    • F15BSYSTEMS ACTING BY MEANS OF FLUIDS IN GENERAL; FLUID-PRESSURE ACTUATORS, e.g. SERVOMOTORS; DETAILS OF FLUID-PRESSURE SYSTEMS, NOT OTHERWISE PROVIDED FOR
    • F15B11/00Servomotor systems without provision for follow-up action; Circuits therefor
    • F15B11/06Servomotor systems without provision for follow-up action; Circuits therefor involving features specific to the use of a compressible medium, e.g. air, steam
    • F15B11/072Combined pneumatic-hydraulic systems
    • F15B11/0725Combined pneumatic-hydraulic systems with the driving energy being derived from a pneumatic system, a subsequent hydraulic system displacing or controlling the output element
    • FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F15FLUID-PRESSURE ACTUATORS; HYDRAULICS OR PNEUMATICS IN GENERAL
    • F15BSYSTEMS ACTING BY MEANS OF FLUIDS IN GENERAL; FLUID-PRESSURE ACTUATORS, e.g. SERVOMOTORS; DETAILS OF FLUID-PRESSURE SYSTEMS, NOT OTHERWISE PROVIDED FOR
    • F15B3/00Intensifiers or fluid-pressure converters, e.g. pressure exchangers; Conveying pressure from one fluid system to another, without contact between the fluids
    • FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F15FLUID-PRESSURE ACTUATORS; HYDRAULICS OR PNEUMATICS IN GENERAL
    • F15BSYSTEMS ACTING BY MEANS OF FLUIDS IN GENERAL; FLUID-PRESSURE ACTUATORS, e.g. SERVOMOTORS; DETAILS OF FLUID-PRESSURE SYSTEMS, NOT OTHERWISE PROVIDED FOR
    • F15B7/00Systems in which the movement produced is definitely related to the output of a volumetric pump; Telemotors
    • F15B7/06Details
    • F15B7/08Input units; Master units
    • FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F15FLUID-PRESSURE ACTUATORS; HYDRAULICS OR PNEUMATICS IN GENERAL
    • F15BSYSTEMS ACTING BY MEANS OF FLUIDS IN GENERAL; FLUID-PRESSURE ACTUATORS, e.g. SERVOMOTORS; DETAILS OF FLUID-PRESSURE SYSTEMS, NOT OTHERWISE PROVIDED FOR
    • F15B7/00Systems in which the movement produced is definitely related to the output of a volumetric pump; Telemotors
    • F15B7/06Details
    • F15B7/10Compensation of the liquid content in a system
    • GPHYSICS
    • G05CONTROLLING; REGULATING
    • G05BCONTROL OR REGULATING SYSTEMS IN GENERAL; FUNCTIONAL ELEMENTS OF SUCH SYSTEMS; MONITORING OR TESTING ARRANGEMENTS FOR SUCH SYSTEMS OR ELEMENTS
    • G05B11/00Automatic controllers
    • G05B11/44Automatic controllers pneumatic only
    • FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F15FLUID-PRESSURE ACTUATORS; HYDRAULICS OR PNEUMATICS IN GENERAL
    • F15BSYSTEMS ACTING BY MEANS OF FLUIDS IN GENERAL; FLUID-PRESSURE ACTUATORS, e.g. SERVOMOTORS; DETAILS OF FLUID-PRESSURE SYSTEMS, NOT OTHERWISE PROVIDED FOR
    • F15B2211/00Circuits for servomotor systems
    • F15B2211/20Fluid pressure source, e.g. accumulator or variable axial piston pump
    • F15B2211/21Systems with pressure sources other than pumps, e.g. with a pyrotechnical charge
    • F15B2211/214Systems with pressure sources other than pumps, e.g. with a pyrotechnical charge the pressure sources being hydrotransformers
    • FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F15FLUID-PRESSURE ACTUATORS; HYDRAULICS OR PNEUMATICS IN GENERAL
    • F15BSYSTEMS ACTING BY MEANS OF FLUIDS IN GENERAL; FLUID-PRESSURE ACTUATORS, e.g. SERVOMOTORS; DETAILS OF FLUID-PRESSURE SYSTEMS, NOT OTHERWISE PROVIDED FOR
    • F15B2211/00Circuits for servomotor systems
    • F15B2211/20Fluid pressure source, e.g. accumulator or variable axial piston pump
    • F15B2211/21Systems with pressure sources other than pumps, e.g. with a pyrotechnical charge
    • F15B2211/216Systems with pressure sources other than pumps, e.g. with a pyrotechnical charge the pressure sources being pneumatic-to-hydraulic converters

Abstract

879,825. Hydraulic intensifiers. AMP Inc. July 20, 1960 [July 27, 1959], No. 25235/60. Class 69 (2). A pressure-multiplying device comprises a lowpressure pneumatic cylinder 8 containing a piston 22 having a plunger 14 extending into a high - pressure hydraulic cylinder 2, and a reservoir 30 for the hydraulic fluid disposed within the pneumatic cylinder and arranged to be in communication with the hydraulic cylinder when the piston is retracted, the reservoir having a movable wall 20 maintained under pressure. The movable wall consists of a diaphragm clamped beyween a base portion 4 and the pneumatic cylinder 8 and is maintained under pressure by a conical spring 32 which also serves to urge the piston 12 and plunger 14 to a retracted position. In the latter position, a passage 28 is uncovered by the plunger to permit fluid from the reservoir to pass into the hydraulic cylinder. As the plunger is moved forward by pneumatic pressure supplied through a port 16, the passage 28 is closed and highpressure hydraulic fluid is delivered through a port 40. The liquid in the reservoir can be replenished through a cap 42. The diaphragm is protected from damage by the spring by a plastic tube 34, the tube also increasing the bearing area of the spring. In another embodiment, the plastic tube is replaced by a semitoroidal member having a radius of curvature slightly less than that of the surface 18 of the reservoir. The device may be used in apparatus for crimping electrical terminals or setting rivets.
GB2523560A 1959-07-27 1960-07-20 Improvements in pressure-multiplying devices Expired GB879825A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
US829815A US2972867A (en) 1959-07-27 1959-07-27 Pressure intensification device

Publications (1)

Publication Number Publication Date
GB879825A true GB879825A (en) 1961-10-11

Family

ID=25255638

Family Applications (1)

Application Number Title Priority Date Filing Date
GB2523560A Expired GB879825A (en) 1959-07-27 1960-07-20 Improvements in pressure-multiplying devices

Country Status (4)

Country Link
US (1) US2972867A (en)
CH (1) CH378688A (en)
GB (1) GB879825A (en)
NL (1) NL254235A (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2554038A1 (en) * 1983-10-28 1985-05-03 Pellenc & Motte Portable hydropneumatic tools such secateurs hydropneumatic

Families Citing this family (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3144753A (en) * 1960-11-10 1964-08-18 Lawrence M Sanders Hydraulic brake system and components thereof
US3688501A (en) * 1970-07-30 1972-09-05 Ellis Eng Inc Fluid pressure amplifier
US3748860A (en) * 1971-02-05 1973-07-31 Altec Mfg Co Inc Hydraulic booster
DE3315008A1 (en) * 1983-04-26 1984-10-31 Bosch Gmbh Robert Device for generating a fluid pressure
SE0101092D0 (en) * 2001-03-26 2001-03-26 Attexor Tools Sa A pneumatic-hydraulic pressure amplifier

Family Cites Families (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2335748A (en) * 1941-10-13 1943-11-30 Hydraulic Brake Co Fluid pressure producing device

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2554038A1 (en) * 1983-10-28 1985-05-03 Pellenc & Motte Portable hydropneumatic tools such secateurs hydropneumatic
EP0143730A1 (en) * 1983-10-28 1985-06-05 Etablissements Pellenc Et Motte Hydropneumatic tool, particularly hand-held hydropneumatic secateurs

Also Published As

Publication number Publication date
NL254235A (en)
CH378688A (en) 1964-06-15
US2972867A (en) 1961-02-28

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