Robust, lightweight, low compression height piston and method of construction thereof
Number of patents in Portfolio can not be more than 2000
United States of America
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Mar 10, 2020
Grant Date -
Sep 29, 2016
app pub date -
Mar 22, 2016
filing date -
Mar 22, 2016
priority date (Note) -
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Abstract
A piston for an internal combustion engine and method of construction is provided. The piston has a robust, lightweight monolithic piston body including an upper wall forming a combustion bowl depending radially inwardly from an annular, uppermost combustion surface. An undercrown surface is formed on an underside of the combustion bowl, with at least a portion of the undercrown surface being bounded by diametrically opposite skirt portions, pin bosses and strut portions connecting the skirt portions to the pin bosses. The bounded undercrown surface has an openly exposed surface area, as viewed looking along a central longitudinal axis along which the piston reciprocates, providing an expansive area against which oil being splashed or sprayed can come into direct contact with to enhance cooling the piston while in use. Through channels extending over upper regions of the pin bosses can be provided to further reduce weight and facilitate cooling.
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