Ignition system for rocket engine combustion chambers operated b

Details Ignition system for rocket engine combustion chambers operated b Ignition system for rocket engine combustion chambers operated b

1973-12-27

1976-03-16

Croyle, Carlton R.

Power plants

Reaction motor

Method of operation

60259, 60261, F23R 100, F02K 902, F02K 310

Patent

active

039437060

ABSTRACT:
An ignition system for rocket engine combustion chambers which are operated by non-hypergolic propellant components and particularly for the pre-combustion chambers of main stream engines of this type, comprises a main combustion chamber having injector means for injecting a propellant component into the combustion chamber for combustion therein. Since the propellant components employed are non-hypergolically reactive, they are ignited by an ignition agent which is produced by the pressure of a first propellant component which is non-hypergolically reactive with the ignition agent into the combustion chamber. The second propellant component which reacts with the ignition agent hypergolically is also introduced into the combustion chamber so that ignition takes place immediately. The arrangement includes a storage tank for the ignition agent having a piston movable therein by admission of the propellant component which is non-hypergolically reactive with the ignition agent to one side of the storage space which contains the ignition agent which in turn is moved by the piston from the other side of the storage space out through a connecting passage into the combustion chamber. After the piston has travelled an amount sufficient to direct a predetermined quantity of the ignition agent into the combustion chamber, the piston passes a port which communicates the propellant component with the combustion chamber so that it can flow after the ignition agent into the combustion chamber for reaction with the other propellant component which is also introduced into the combustion chamber.

REFERENCES:
patent: 862867 (1907-08-01), Eggleston
patent: 2505798 (1950-05-01), Skinner
patent: 2858672 (1958-11-01), Clark
patent: 2906091 (1959-09-01), Kretschmer
patent: 3098353 (1963-07-01), Abild
patent: 3577735 (1971-05-01), Schmidt
patent: 3828551 (1974-08-01), Schmidt

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