Mass controlled compression timed ignition method and igniter
OwnerMark A. Cherryinventor
Life of this patent
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Abstract
A method and apparatus for compression timed ignition in internal combustion engines, the varying mass of the fuel-air mixture having controlling effect to retard timing by cooling a heater element to vary the current therethrough, and characterized by an igniter with a pre-chamber in communication with the engine combustion chamber via at least one and preferably a multiplicity of radiating ports for projecting burning plasma into the engine combustion chamber.
Claims22
A method of positive curve ignition timing in internal combustion engines having a compression cycle and ignition of a combustible fuel-air mixture in a combustion chamber followed by a power cycle, and including;
- the first step of providing a closed pre-chamber in open communication with the combustion chamber for penetration therein of a pressure front of a mass of combustible fuel-air mixture,
- the second step of positioning an electrically powered hot wire anemometer-heater element having a determined mass and applying voltage and current thereto and at a depth of pressure front penetration of said combustible fuel-air mixture into the pre-chamber at a determined compression of said combustible fuel-air mixture, electrical resistance through the hot wire anemometer-heater element being sensed to increase electrical power to the hot wire anemometer-heater element for advanced ignition and to reduce power thereto for retarded ignition, thereby adjusting a positive curve timing slope,
- the third step of transferring the mass of combustible fuel-air mixture from the combustion chamber and into the pre-chamber for cooling contact with and over the said hot wire anemometer-heater element during the compression cycle and for the transfer of heat between the mass of the combustible fuel-air mixture and the mass of the hot wire anemometer-heater element.
- the fourth step of capturing a volume of previously burnt non combustible gasses in the pre-chamber for occlusion of the hot wire anemometer-heater element and for depression as a spring,
- and the fifth step of depressing said captured previously burnt and combustible gases with the penetrating pressure front of combustible fuel-air mixture for said contact over the hot wire anemometer-heater element for ignition thereby and transfer of burning plasma into the combustion chamber for continued burning of the combustible fuel-air mixture therein to effect the power cycle and leaving burnt non combustible gases in the pre chamber.
Apparatus for positive curve timing chamber ignition in internal combustion engine having a combustion chamber, means for intake of a combustion fuel-air mixture of varying mass, means for effecting a compression cycle followed by a power cycle, and means for exhaust of burnt gases, and including;
- an elongated pre-chamber means comprised of a timing zone with one end exposed into the combustion chamber and with at least one entry and exit port in open communication with the combustion chamber and a buffer zone continuing from the timing zone and with the other end closed to capture burnt gases therein,
- an electrically powered hot wire anemometer-heater element of minimal mass exposed within the pre-chamber between said entry and exit port and said other closed end for contact by a pressure front of said combustible fuel-air mixture of varying mass penetrating into the pre-chamber and contacting said hot wire anemometer-heater element during the compression cycle to affect the temperature of said hot wire anemometer-heater element according to the prevailing combustible fuel-air mixture mass and temperature,
- means sensing the electrical resistance through the hot wire anemometer-heater element to increase electrical power to the hot wire anemometer-heater element for advanced ignition and to reduce power thereto for retarded ignition, thereby providing a positive curve timing slope,
- the pre-chamber being closed by said other end to capture burnt gases therein so as to function as a spring opposed to the pressure front of said combustible fuel-air mixture,
- whereby burnt gases occlude the hot wire anemometer-heater element until exposed to the penetrating pressure front of combustible fuel-air mixture to ignite said fuel-air mixture for continued burning and projection through said at least one port and into the combustion chamber for ignition and continued burning of the combustible fuel-air mixture therein.
Dependencies are inferred from the claim text.