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Standard
1998-12-01
The voltage-current method of determination of spark energy is satisfactory and informative. Readings may be taken in a minimum amount of time (after the initial system set up) and give the total electrical energy in the arc stream. It is of no significance whether this energy is later transformed to light, heat or sound because the actual causes of ignition are not confined to any one of these forms. The total useful energy i smeasured in its most basic form. Energy dissipated as heat in the plug shell, center conductor and semi-conductors, if present, is not measured by this method. This means that non-contributing energy is eliminated from the results.
Standard
1998-08-01
Procedure for obtaining the corrected heat-rating values (indicated mean effective pressure, IMEP) of spark plugs rated in the SAE 17.6 cubic inch rating engine (SAE AS840).
Standard
1998-08-01
Parameters to consider and various methods of measuring spark energy of aviation ignition systems.
Standard
1997-04-01
This specification covers three types of flanges for magneto mountings as follows: 1. Two-bolt Flange, 2. Three-bolt Flange, and 3. Four-bolt Flange.
Standard
1996-11-01
This standard coers two basic types of ignition shieldign as follows: Type I - Unfilled Type II - Filled
Standard
1995-11-01
No scope available.
Standard
1995-06-01
To describe typical ignition systems in general usage and their parameters that warrant considerations during the development of a gas turbine engine. To describe those parameters in gas turbine engine design and, in particular, burner configurations that influence the type selection and performance of the ignition system. To indicate the areas where future work may uncover important effects having a direct bearing on certain interrelated parameters, with resultant benefits to both the engine and ignition designers. To provide the designer of gas turbine engines with a working knowledge of the interrelation between engine performance objectives and the part played by ignition in meeting the objectives. To present a definitive collection of standard references, nomenclature, and descriptive terminology sufficient to provide a basis for design approach in specification of gas turbine ignition systems. To stimulate further work necessary in the development of knowledge of the unknown, interrelated parameters.
Standard
1994-06-01
These specifications contain general information about the characteristics of ignition systems and measuring techniques; recommneded types of voltage dividers and output indicators; calibration procedures.
Standard
1990-08-01
This report describes basic methods, typical results, limitations, and technical variables which may provide some relative performance expectations for different lots of the same material, or comparison characteristics for different materials. This testing alone does not assure satisfactory operation in the engine, i.e., there is not a direct relationship to actual engine performance. This report provides specific information on procedures for evaluating, on an accelerated comparison basis, the durability of ceramic materials under conditions of compressed electrical (capacitor) discharge.
Standard
1989-05-01
The efficiency of any electrical machine is the ratio of the output to input and is generally expressed in per cent. In the case of ignition systems the input power can be supplied from a battery, 115, volt, 400 cycle generator or an engine driven alternator which is integral to the ignition system. Regardless of the input power source, the ignition unit functions to form this power into a spark for the ignition of combustible mixtures. A spark between two electrodes (igniter plug electrodes) is the most acceptable way for igniting a combustible mixture. The wide variation of the combustible mixtures found in the region of the igniter plug electrodes compels manufacturers to provide a wide variation in ignition systems. The design parameters of the ignition system (spark rate per second, spark energy, duration of the spark) are generally arrived at by empirical engine testing. Thus it is very important that means be provided for testing the energy of the spark independent of the final system application.
Standard
1989-03-03
No scope available.
Standard
1989-03-03
No scope available.
Standard
1989-03-02
No scope available.
Standard
1989-03-02
No scope available.
Standard
1989-03-02
No scope available.
Standard
1989-03-02
No scope available.
Standard
1989-03-02
No scope available.
Standard
1988-11-10
To establish recommended gap settings for aircraft piston engine spark plugs. To standardize gap settings for spark plugs for commercial applications for all types of aircraft piston engines.
Standard
1988-01-18
This specification establishes the requirements for shielded, flexible, high energy ignition leads for gas turbine engines.
Standard
1987-11-05
This specification covers reciprocating engine shielded and unshielded spark plugs.
Standard
1985-03-01
The purpose of this report is to provide specific information on instrumentation and procedures to measure spark igniter tip semiconductor resistance at an applied voltage level of 500 to 1000 volts without introducing heating effects. This report describes a method of semiconductor resistance measurement using controlled energy levels and a digital processing oscilloscope to acquire and process test data.
Standard
1984-06-01
To describe typical ignition systems in general usage and their parameters that warrant considerations during the development of a gas turbine engine. To describe those parameters in gas turbine engine design and, in particular, burner configurations that influence the type selection and performance of the ignition system. To indicate the areas where future work may uncover important effects having a direct bearing on certain interrelated parameters, with resultant benefits to both the engine and ignition designers. To provide the designer of gas turbine engines with a working knowledge of the interrelation between engine performance objectives and the part played by ignition in meeting the objectives. To present a definitive collection of standard references, nomenclature, and descriptive terminology sufficient to provide a basis for design approach in specification of gas turbine ignition systems. To stimulate further work necessary in the development of knowledge of the unknown, interrelated parameters.
Standard
1983-07-01
No scope available.
Standard
1983-07-01
No scope available.
Standard
1981-03-01
To establish recommended gap settings for aircraft piston engine spark plugs. To standardize gap settings for spark plugs for commercial applications for all types of aircraft piston engines.
Standard
1981-03-01
No scope available.
Standard
1980-04-15
This Aerospace Recommended Practice (ARP) provides a design standard for power supplies applicable to ignition system development testing. This procedure establishes the ignition system power supply design parameters for aeronautical engine ignition system testing.
Viewing 1 to 30 of 78