GB1375828A – – Google Patents
GB1375828A – – Google Patents
Info
Publication number
GB1375828A
GB1375828A
GB5641070A
GB5641070A
GB1375828A
GB 1375828 A
GB1375828 A
GB 1375828A
GB 5641070 A
GB5641070 A
GB 5641070A
GB 5641070 A
GB5641070 A
GB 5641070A
GB 1375828 A
GB1375828 A
GB 1375828A
Authority
GB
United Kingdom
Prior art keywords
torque
valve
dynamometer
acceleration
actuator
Prior art date
1970-11-27
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
GB5641070A
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.)
1970-11-27
Filing date
1970-11-27
Publication date
1974-11-27
1970-11-27
Application filed
filed
Critical
1970-11-27
Priority to GB5641070A
priority
Critical
patent/GB1375828A/en
1971-11-15
Priority to US3785216D
priority
patent/US3785216A/en
1971-11-19
Priority to DE19712157427
priority
patent/DE2157427A1/en
1971-11-19
Priority to AU35934/71A
priority
patent/AU457881B2/en
1971-11-22
Priority to IT31438/71A
priority
patent/IT940744B/en
1971-11-26
Priority to FR7142566A
priority
patent/FR2116126A5/fr
1971-11-27
Priority to ES397427A
priority
patent/ES397427A1/en
1974-11-27
Publication of GB1375828A
publication
Critical
patent/GB1375828A/en
Status
Expired
legal-status
Critical
Current
Links
Espacenet
Global Dossier
Discuss
Classifications
G—PHYSICS
G01—MEASURING; TESTING
G01L—MEASURING FORCE, STRESS, TORQUE, WORK, MECHANICAL POWER, MECHANICAL EFFICIENCY, OR FLUID PRESSURE
G01L3/00—Measuring torque, work, mechanical power, or mechanical efficiency, in general
G01L3/16—Rotary-absorption dynamometers, e.g. of brake type
G01L3/20—Rotary-absorption dynamometers, e.g. of brake type fluid actuated
G—PHYSICS
G01—MEASURING; TESTING
G01M—TESTING STATIC OR DYNAMIC BALANCE OF MACHINES OR STRUCTURES; TESTING OF STRUCTURES OR APPARATUS, NOT OTHERWISE PROVIDED FOR
G01M15/00—Testing of engines
G01M15/04—Testing internal-combustion engines
G01M15/042—Testing internal-combustion engines by monitoring a single specific parameter not covered by groups G01M15/06 – G01M15/12
G01M15/044—Testing internal-combustion engines by monitoring a single specific parameter not covered by groups G01M15/06 – G01M15/12 by monitoring power, e.g. by operating the engine with one of the ignitions interrupted; by using acceleration tests
H—ELECTRICITY
H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
H02P—CONTROL OR REGULATION OF ELECTRIC MOTORS, ELECTRIC GENERATORS OR DYNAMO-ELECTRIC CONVERTERS; CONTROLLING TRANSFORMERS, REACTORS OR CHOKE COILS
H02P23/00—Arrangements or methods for the control of AC motors characterised by a control method other than vector control
H02P23/16—Controlling the angular speed of one shaft
Abstract
1375828 Dynamometer REDMAN HEENAN FROUDE Ltd N McLEAN D B LEWIS and R J L McLAREN 18 Nov 1971 [27 Nov 1970] 56410/70 Heading G1W [Also in Division G3] The speed, acceleration or torque of a hydrobinetic device such as a dynamometer, brake or torque converter is retroactively controlled by adjusting a valve in the inlet or outlet of the device. The valve passage construction is such that the displacement of a valve element is linearly related to the torque developed by the device. In the system shown, a dynamometer 1 has an inlet 2 and outlet 3, each provided with a butterfly-type valve 4 pressure-balanced on a shaft 5. The valve element 4 may be in the form of a plate, ball, disc or other suitable shape, and the passage 2 is correspondingly shaped to give the required displacement – torque relationship, Figs. 1 and 2 (not shown). Control may be effected through either the inlet or outlet valve construction, or both simultaneously. In operation, a device 9, which may be a tachogenerator, frequency pickup or torque transducer, produces a voltage corresponding to a parameter to be controlled. This voltage is compared in a variable gain amplifier 12 with a desired value represented by a potentiometer setting 11. The resulting error signal is fed to a servosystem 14 including an actuator 8 which drives the valve shaft 5. The actuator 8 may comprise a printed circuit, linear or other electric motor, or a servo-operated hydraulic or pneumatic device, and also drives a potentiometer 17 to provide position feedback on a line 18, and a transducer 20 which supplies a signal on line 19 indicative of the acceleration of the shaft 5. The actuator 8 is driven by a control amplifier 15 through an output stage 16. The system may form part of an engine test plant, and the setting of potentiometer 11 may be constant or varied in accordance with a program. Sequence control involving combinations of speed, acceleration and torque may be employed.
GB5641070A
1970-11-27
1970-11-27
Expired
GB1375828A
(en)
Priority Applications (7)
Application Number
Priority Date
Filing Date
Title
GB5641070A
GB1375828A
(en)
1970-11-27
1970-11-27
US3785216D
US3785216A
(en)
1970-11-27
1971-11-15
Control systems for hydrokinetic devices
DE19712157427
DE2157427A1
(en)
1970-11-27
1971-11-19
Control system for hydrokinetic devices such as dynamometers, brakes or torque converters
AU35934/71A
AU457881B2
(en)
1970-11-27
1971-11-19
Improvements in or relating to control systems for hydrokinetic devices
IT31438/71A
IT940744B
(en)
1970-11-27
1971-11-22
IMPROVEMENTS RELATING TO CONTROL SYSTEMS FOR HYDROKINETIC DEVICES
FR7142566A
FR2116126A5
(en)
1970-11-27
1971-11-26
ES397427A
ES397427A1
(en)
1970-11-27
1971-11-27
Control systems for hydrokinetic devices
Applications Claiming Priority (1)
Application Number
Priority Date
Filing Date
Title
GB5641070A
GB1375828A
(en)
1970-11-27
1970-11-27
Publications (1)
Publication Number
Publication Date
GB1375828A
true
GB1375828A
(en)
1974-11-27
Family
ID=10476546
Family Applications (1)
Application Number
Title
Priority Date
Filing Date
GB5641070A
Expired
GB1375828A
(en)
1970-11-27
1970-11-27
Country Status (7)
Country
Link
US
(1)
US3785216A
(en)
AU
(1)
AU457881B2
(en)
DE
(1)
DE2157427A1
(en)
ES
(1)
ES397427A1
(en)
FR
(1)
FR2116126A5
(en)
GB
(1)
GB1375828A
(en)
IT
(1)
IT940744B
(en)
Cited By (1)
* Cited by examiner, † Cited by third party
Publication number
Priority date
Publication date
Assignee
Title
CN104481714A
(en)
*
2014-11-21
2015-04-01
中国南方航空工业(集团)有限公司
Engine output shaft rotation speed control method and device
Families Citing this family (9)
* Cited by examiner, † Cited by third party
Publication number
Priority date
Publication date
Assignee
Title
US3942363A
(en)
*
1973-05-23
1976-03-09
The Cross Company
Drive-dynamometer system
DE2732905C3
(en)
*
1977-07-21
1994-02-24
Vdo Schindling
Device for regulating the driving speed of a motor vehicle
US4638898A
(en)
*
1985-12-19
1987-01-27
Eaton Corporation
Clutch control system and clutch assembly using same
DE3733513A1
(en)
*
1987-10-03
1989-04-20
Zoellner Gmbh & Co Kg
Method for operating a hydraulic power brake and hydraulic power brake for carrying out the method
US4871263A
(en)
*
1988-05-16
1989-10-03
Pyromation, Inc.
Protective tube for a temperature sensor
JPH10508685A
(en)
*
1994-08-24
1998-08-25
インダストリアル リサーチ リミテッド
Dynamometer with computerized control system
EP2449251A1
(en)
*
2009-06-30
2012-05-09
Turner Hunt
Power control protocol for a hydrokinetic device including an array thereof
AT514248B1
(en)
*
2014-07-04
2016-05-15
Avl List Gmbh
Linear control valve
EP3284956B1
(en)
*
2016-08-16
2019-07-24
Hamilton Sundstrand Corporation
Servovalve
Family Cites Families (3)
* Cited by examiner, † Cited by third party
Publication number
Priority date
Publication date
Assignee
Title
GB552586A
(en)
*
1941-10-15
1943-04-15
Brown David & Sons Ltd
Improvements in or relating to dynamometers
US3050993A
(en)
*
1959-08-28
1962-08-28
Exxon Research Engineering Co
Hydraulic dynamometer and process of using same
US3364736A
(en)
*
1965-04-28
1968-01-23
Heenan & Froude Ltd
Hydraulic dynamometers of the hydrokinetic type
1970
1970-11-27
GB
GB5641070A
patent/GB1375828A/en
not_active
Expired
1971
1971-11-15
US
US3785216D
patent/US3785216A/en
not_active
Expired – Lifetime
1971-11-19
AU
AU35934/71A
patent/AU457881B2/en
not_active
Expired
1971-11-19
DE
DE19712157427
patent/DE2157427A1/en
active
Pending
1971-11-22
IT
IT31438/71A
patent/IT940744B/en
active
1971-11-26
FR
FR7142566A
patent/FR2116126A5/fr
not_active
Expired
1971-11-27
ES
ES397427A
patent/ES397427A1/en
not_active
Expired
Cited By (2)
* Cited by examiner, † Cited by third party
Publication number
Priority date
Publication date
Assignee
Title
CN104481714A
(en)
*
2014-11-21
2015-04-01
中国南方航空工业(集团)有限公司
Engine output shaft rotation speed control method and device
CN104481714B
(en)
*
2014-11-21
2018-05-01
中国南方航空工业(集团)有限公司
The control method and device of engine output shaft rotating speed
Also Published As
Publication number
Publication date
AU3593471A
(en)
1973-05-24
DE2157427A1
(en)
1972-05-31
ES397427A1
(en)
1974-05-16
US3785216A
(en)
1974-01-15
IT940744B
(en)
1973-02-20
FR2116126A5
(en)
1972-07-07
AU457881B2
(en)
1975-02-13
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Legal Events
Date
Code
Title
Description
1975-04-09
PS
Patent sealed [section 19, patents act 1949]
1991-12-18
PE20
Patent expired after termination of 20 years
