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US 10,465,629 B2Granted
Internal combustion engine having piston with deflector channels and complementary cylinder head
AssigneeQuest Engines, LLC
InventorRoy A. Blom
Life of this patent
Estimating the term…
Abstract
Cooperatively shaped piston and cylinder head arrangements for internal combustion engines are disclosed. The piston may have a domed head with one or more curved exhaust channels and inlet channels formed therein. The piston cylinder may have curved surfaces that are exact or close inverse or negative counterparts to the curved surfaces of all or part of the domed head, including the exhaust channels, and/or inlet channels formed on the piston.
Claims20
An internal combustion engine comprising:
- an engine cylinder having an intake port and an exhaust port;
- a piston disposed in said engine cylinder, said piston having a lower skirt and an upper dome;
- first and second diametrically opposed and identical concave channels formed on the piston upper dome;
- a concave downward sloped channel formed on the upper dome,
- wherein the first and second diametrically opposed and identical concave channels are proximal to the intake port relative to a first reference plane that is equidistant at all points from the exhaust port and the intake port;
- and
- a domed cylinder head surrounding an upper portion of the piston with clearance for compression volume when the piston is at a top dead center position, said domed cylinder head having an inner wall shape that is substantially a negative image of said piston upper dome including the first and second diametrically opposed and identical concave channels and the concave downward sloped channel,
- wherein the first and second diametrically opposed and identical concave channels are equally spaced from a second reference plane that is perpendicular to the first reference plane, and
- wherein the concave downward sloped channel is proximal to the exhaust port relative to the first reference plane and longitudinally bisected by the second reference plane.
6 more elements
An internal combustion engine comprising:
- an engine cylinder;
- an engine cylinder head having an intake port substantially diametrically opposite to an exhaust port;
- a piston disposed in said engine cylinder, said piston having a lower skirt portion and an upper domed portion, said upper domed portion proximal to the engine cylinder head and terminating at an upper-most point at an apex;
- first and second channels formed in said upper domed portion in relative proximity to the intake port as compared to the exhaust port, and formed on respective first and second sides of the upper domed portion,
- wherein said first and second sides of the upper domed portion are defined by a reference plane that extends between the intake port and the exhaust port and that bisects the upper domed portion;
- and
- a third channel formed in said upper domed portion between the first and second channels, and formed in relative proximity to the exhaust port as compared with the intake port, and
- wherein the engine cylinder head has a complementary and negative shape to that of the upper domed portion including the first, second and third channels.
5 more elements
Dependencies are inferred from the claim text.