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Publication Title | United States Patent [191 Menard etal. APPARATUSFORIGNITIONAND REIGNITIONFORAGASTURBINE

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United States Patent [191 Menard etal.

[54] APPARATUSFORIGNITIONAND REIGNITIONFORAGASTURBINE

[75] Inventors: ChristianMenard,Maurepas;Daniel Marouby,Viroflay;AlainChollet,

Paris,allofFrance

[73] Assignees: AutomobilesPeugeot;Automobiles Citroen, both of Paris, France

[21] Appl.No.: 334,220

[22] Filed: Dee- 24, 1981

F . A 1- ti Pri - D ta

[30] orelgn pp ‘ca on onty a

Dec.:24,1980[FR] France..8027475

[51] Int. (:1.3 ..F02C 7/26; FO2C 7/262

[52] US. Cl...60/339,141;60/39.827

[58] FieldofSearch ..60/39.09l, 39.141, 39.827;

315/209 CD, 2095 CR _

[56] References Cited U.S.PATENT DOCUMENTS

2,697,184 12/1954 Lautenberger ..(Io/39.827 3,504,4904/1970Klamm............ ......60/39.091 3,600,887 8/1971 Gaultetal...60/39.14l

[1] 4,414,804 [45] Nov. 15, 1983

3,869,645 3/1975 Collins..60/39.l4l 3,900,017 8/1975 Collins.............................60/39.l41

Primary Examiner-L. J. Casaregola Attorney,Agent,orFirm-Brisebois& Kruger

[57] ABSTRACT

A sparkignitionsystemforagasturbineelectronically

controls the cycle of charge and discharge of a spark

generator of the capacitive type. There is a function

generator (5) which derives a reference voltage as a

function of the speed of the turbine and possibly of

other parameters. A charge control (6) for the capaci t1ve cell (9) and a spark frequency control (7) are con

trolledbythereferenceVoltage’Reignitioninthecase

0f ?ame exhh?ioh is °°htr°11ed by an °Pt°-e1e°"°hi° arrangement (11’ 12’ 13) which ‘hives *1reignhiml ch chit(14)’when?amewinch” isdetected-Thefeigni tion circuit produces a voltage which is superimposed on and over-rides the speed reference voltage to acti vate the system to produce ignition at a start condition.

The system can be used for ignition of a gas turbine, especlally a turbo-‘compressor

9 Claims, 4 Drawing Figures

6/ P2 92 1°) F_‘_7_1

CHARGE CONVERTER

L4”

CAPACITOR CELL

DISCHARGE I 1/ : CIRCUIT l l, >

I16% I2I

‘I |

L77’7 I______J M12

I_2

INTERFACE

;6 2 DIsCHARGE

/ CHARGE CONTROL I CON TROL

3UV LB”1413

SENSOR

45 2I

FUNCTION CONVERTER_'GENERATOR

1516 17 18 19

L9 f

P1

P5

2 REIGNITION

CIRCUIT

Image | United States Patent [191 Menard etal. APPARATUSFORIGNITIONAND REIGNITIONFORAGASTURBINE



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