GB1334532A - Electrical control systems - Google Patents

Electrical control systems

Info

Publication number
GB1334532A
GB1334532A GB1334532DA GB1334532A GB 1334532 A GB1334532 A GB 1334532A GB 1334532D A GB1334532D A GB 1334532DA GB 1334532 A GB1334532 A GB 1334532A
Authority
GB
United Kingdom
Prior art keywords
choke
control systems
electromagnets
thyristor
jan
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
Inventor
W Holt
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.)
ZF International UK Ltd
Original Assignee
Lucas Industries Ltd
Joseph Lucas Industries 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 Lucas Industries Ltd, Joseph Lucas Industries Ltd filed Critical Lucas Industries Ltd
Publication of GB1334532A publication Critical patent/GB1334532A/en
Expired legal-status Critical Current

Links

Classifications

    • H—ELECTRICITY
    • H03—ELECTRONIC CIRCUITRY
    • H03K—PULSE TECHNIQUE
    • H03K17/00—Electronic switching or gating, i.e. not by contact-making and –breaking
    • H03K17/51—Electronic switching or gating, i.e. not by contact-making and –breaking characterised by the components used
    • H03K17/56—Electronic switching or gating, i.e. not by contact-making and –breaking characterised by the components used by the use, as active elements, of semiconductor devices
    • H03K17/72—Electronic switching or gating, i.e. not by contact-making and –breaking characterised by the components used by the use, as active elements, of semiconductor devices having more than two PN junctions; having more than three electrodes; having more than one electrode connected to the same conductivity region
    • H03K17/73—Electronic switching or gating, i.e. not by contact-making and –breaking characterised by the components used by the use, as active elements, of semiconductor devices having more than two PN junctions; having more than three electrodes; having more than one electrode connected to the same conductivity region for dc voltages or currents

Abstract

1334532 Automatic choke control systems JOSEPH LUCAS (INDUSTRIES) Ltd 4 Jan 1971 [17 Jan 1970] 2369/70 Heading F1B [Also in Division G4] In an automatic choke control system, switch 13 is operated when the generator speed reaches a predetermined level to energize electromagnet 28 to (1) move choke cable back one step towards its inoperative position and (2) step wipers 17, 29 from contacts 22, 34 to contacts 21, 33 respectively to break the circuit to electromagnets 28. When the temperature sensed by resistor 27 reaches a predetermined level transistor 38 is turned off to turn on a thyristor 43 so that a second electromagnet 37 is energized by a diode 47 to (1) break the circuit to thyristor 43 and (2) step the choke cable. As the temperature rises through pre-selected values (determined by the values of resistors 23, 24, 35, 36) the electromagnets are sequentially energized until the choke cable is in its inoperative position. Thermistor 52 caters for changes in ambient temperature.
GB1334532D 1970-01-17 1970-01-17 Electrical control systems Expired GB1334532A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GB236970 1970-01-17

Publications (1)

Publication Number Publication Date
GB1334532A true GB1334532A (en) 1973-10-17

Family

ID=9738339

Family Applications (1)

Application Number Title Priority Date Filing Date
GB1334532D Expired GB1334532A (en) 1970-01-17 1970-01-17 Electrical control systems

Country Status (7)

Country Link
US (1) US3652869A (en)
JP (1) JPS538852B1 (en)
CS (1) CS160671B2 (en)
ES (1) ES387681A1 (en)
FR (1) FR2077191B1 (en)
GB (1) GB1334532A (en)
SE (1) SE355044B (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2463695A1 (en) * 1979-08-24 1981-02-27 Smiths Industries Ltd IC engine choke operation warning circuit - has thermistor in temp. gauge to close switch and flash warning light when engine warms up

Families Citing this family (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP3033512A2 (en) 2013-08-15 2016-06-22 Kohler Co. Systems and methods for electronically controlling fuel-to-air ratio for an internal combustion engine
US10054081B2 (en) 2014-10-17 2018-08-21 Kohler Co. Automatic starting system

Family Cites Families (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE1751410A1 (en) * 1968-05-24 1971-07-01 Bosch Gmbh Robert Temperature-dependent switching device for an electronically controlled fuel injection device
US3586869A (en) * 1969-09-08 1971-06-22 Honeywell Inc Sequencing control unit

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2463695A1 (en) * 1979-08-24 1981-02-27 Smiths Industries Ltd IC engine choke operation warning circuit - has thermistor in temp. gauge to close switch and flash warning light when engine warms up

Also Published As

Publication number Publication date
JPS538852B1 (en) 1978-04-01
ES387681A1 (en) 1974-01-16
CS160671B2 (en) 1975-03-28
SE355044B (en) 1973-04-02
US3652869A (en) 1972-03-28
FR2077191B1 (en) 1973-10-19
FR2077191A1 (en) 1971-10-22

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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