Spark boosting device
OwnerEdgar Almquist, Richard Almquistinventors
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Abstract
The invention comprises a spark booster for use in the ignition system of an internal combustion engine. Two embodiments of the invention are disclosed. Each embodiment comprises two electrically conductive members which are spaced from each other to define a spark gap, a bi-metal disk for varying the size of the gap in response to variations in engine temperature, manual adjustment for adjusting the spark gap independently of temperature, and an inspection window for visually observing the spark gap. In addition to the foregoing features, one embodiment also includes apparatus for varying the size of the gap in response to the load on the engine and its speed.
Claims20
A spark booster for the ignition system of an internal combustion engine comprising
- a housing, said housing being made of electrically non-conductive material;
- first and second electrically conductive members supported by said housing, said members being in axial alignment and being longitudinally spaced from each other to define a spark gap,
- an electrically conductive bimetallic element which moves laterally and is disposed in said housing for axially varying the distance across said spark gap in response to variations in the temperature in said housing so that increases in temperature causes said spark gap to be reduced.
A device as defined in claim 19 wherein the facing ends of said first and second members are tapered to substantially define points, said spark gap being defined by said points, and the portion of said third member that is movable into said spark gap is tapered to substantially define a point.
A spark booster for the ignition system of an internal combustion engine comprising
- a housing, said housing being made of electrically non-conductive material,
- first and second electrically conductive members supported by said housing, said members being spaced from each other and having facing ends to define a spark gap;
- an electrically conductive bimetallic element disposed in said housing for varying the distance across said spark gap in response to variations in the temperature in said housing so that increases in temperature cause said spark gap to be reduced,
- said bimetallic element being mounted on at least one of said electrically conductive members, the said facing ends of said first and second members being in axial alignment, said bimetallic element being a generally planar member which is mounted on one of said members in a plane which is perpendicular to said axis of alignment and the other of said members having at least a hollow end in facing relation to said bimetallic element to define a peripheral wall in facing relation to said bimetallic element so that said spark gap is defined by the distance between said bimetallic element and said circumferential wall.
Dependencies are inferred from the claim text.