GB1332553A - Emergency power unit - Google Patents

Emergency power unit

Info

Publication number
GB1332553A
GB1332553A GB2514871*A GB2514871A GB1332553A GB 1332553 A GB1332553 A GB 1332553A GB 2514871 A GB2514871 A GB 2514871A GB 1332553 A GB1332553 A GB 1332553A
Authority
GB
United Kingdom
Prior art keywords
unit
hydraulic
cylinder
electric
power
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
GB2514871*A
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.)
Sundstrand Corp
Original Assignee
Sundstrand Corp
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 Sundstrand Corp filed Critical Sundstrand Corp
Publication of GB1332553A publication Critical patent/GB1332553A/en
Expired legal-status Critical Current

Links

Classifications

    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
    • F16H—GEARING
    • F16H61/00—Control functions within control units of change-speed- or reversing-gearings for conveying rotary motion ; Control of exclusively fluid gearing, friction gearing, gearings with endless flexible members or other particular types of gearing
    • F16H61/38—Control of exclusively fluid gearing
    • F16H61/40—Control of exclusively fluid gearing hydrostatic
    • F16H61/46—Automatic regulation in accordance with output requirements
    • F16H61/47—Automatic regulation in accordance with output requirements for achieving a target output speed
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B64—AIRCRAFT; AVIATION; COSMONAUTICS
    • B64D—EQUIPMENT FOR FITTING IN OR TO AIRCRAFT; FLIGHT SUITS; PARACHUTES; ARRANGEMENTS OR MOUNTING OF POWER PLANTS OR PROPULSION TRANSMISSIONS IN AIRCRAFT
    • B64D41/00—Power installations for auxiliary purposes
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
    • F16H—GEARING
    • F16H61/00—Control functions within control units of change-speed- or reversing-gearings for conveying rotary motion ; Control of exclusively fluid gearing, friction gearing, gearings with endless flexible members or other particular types of gearing
    • F16H61/38—Control of exclusively fluid gearing
    • F16H61/40—Control of exclusively fluid gearing hydrostatic
    • F16H61/46—Automatic regulation in accordance with output requirements

Abstract

1332553 Hydraulic reciprocating pumps and motors SUNDSTRAND CORP 19 April 1971 [13 April 1970] 25148/71 Heading F1A [Also in Division H2] An emergency power unit comprises an hydraulic unit 14 and an electric unit 12 coupled together by a shaft 34, the hydraulic unit being operable as a motor to drive the electrical unit as a generator and the electric unit being operable as a motor to drive the hydraulic unit as a pump. Thus the power unit can be switched in an emergency to deliver hydraulic or electric power to either the main hydraulic system 44 or the main electric system (not shown) of e. g. an aircraft. The hydraulic unit 14 is an axial piston machine having a swash plate 38 adjustable against a spring bias 40 by a cylinder 29. The swash plate angle is automatically adjustable under the control of a speed governor 26 or a valve 32 depending on the position of a selector valve 67. When delivering electric power the generator speed is kept constant, the governor 26 either delivering fluid to the cylinder 29 from a high pressure line 16, 60, 61 or exhausting fluid from the cylinder through a line 68, 65, 69. When delivering hydraulic power, the high pressure line 16 becomes a pump delivery line, the pressure therein being maintained constant by the valve 32 acting automatically to supply or exhaust the cylinder 29.
GB2514871*A 1970-04-13 1971-04-19 Emergency power unit Expired GB1332553A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US2768270A 1970-04-13 1970-04-13

Publications (1)

Publication Number Publication Date
GB1332553A true GB1332553A (en) 1973-10-03

Family

ID=21839181

Family Applications (1)

Application Number Title Priority Date Filing Date
GB2514871*A Expired GB1332553A (en) 1970-04-13 1971-04-19 Emergency power unit

Country Status (4)

Country Link
US (1) US3631256A (en)
DE (1) DE2116792C3 (en)
FR (1) FR2086032B1 (en)
GB (1) GB1332553A (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN112623643A (en) * 2021-01-26 2021-04-09 中国矿业大学 Tensioning system of belt conveyor

Families Citing this family (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0091801A3 (en) * 1982-04-14 1984-02-29 Unimation Inc. Energy recovery system for manipulator apparatus
US6023134A (en) * 1996-10-25 2000-02-08 Daimlerchrysler Aerospace Airbus Gmbh Power conversion system for bi-directional conversion between hydraulic power and electrical power
US6394206B1 (en) * 2000-10-12 2002-05-28 Robert Fury Vehicle generator control
US6806589B1 (en) 2003-07-21 2004-10-19 Hamilton Sundstrand Corporation No break electric power transfer system

Family Cites Families (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB1042509A (en) * 1962-07-31 1966-09-14 English Electric Co Ltd Improvements in or relating to hydraulic reaction turbine alternator sets
US3477013A (en) * 1967-06-05 1969-11-04 Dynamics Corp America Hydrostatic transmission coupled standby power supply

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN112623643A (en) * 2021-01-26 2021-04-09 中国矿业大学 Tensioning system of belt conveyor
CN112623643B (en) * 2021-01-26 2021-08-24 中国矿业大学 Tensioning system of belt conveyor

Also Published As

Publication number Publication date
FR2086032A1 (en) 1971-12-31
DE2116792C3 (en) 1974-08-15
DE2116792B2 (en) 1974-01-17
DE2116792A1 (en) 1971-11-11
US3631256A (en) 1971-12-28
FR2086032B1 (en) 1975-01-17

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Legal Events

Date Code Title Description
PS Patent sealed [section 19, patents act 1949]
PCNP Patent ceased through non-payment of renewal fee