Back to results
US 2020/0347798 A1Published application
Annular ring groove of a piston
AssigneeAi Alpine US Bidco Inc
InventorsRichard John Donahue, James Richard Zurlo
Life of this patent
Estimating the term…
Abstract
A power cylinder system for a reciprocating engine includes a piston configured to move within a cylinder of the reciprocating engine. The system also includes a groove extending circumferentially about the piston and configured to support a ring. An axially-facing surface of the groove has circumferential undulations at ambient temperatures that are configured to compensate for distortions to the groove caused by operation of the reciprocating engine.
Claims20
A system, comprising:
- a piston, comprising:
- a top surface;
- a sidewall disposed about a central axis;
- and
- a first groove disposed in the sidewall and configured to receive a first piston ring, wherein the first groove comprises a first axially-facing surface having first surface variations that vary unevenly at least partially about a circumference of the piston at an ambient temperature.
2 more elements
A system, comprising:
- a controller configured to control a tool to:
- form a first axially-facing surface in a first groove of a piston, wherein the piston comprises a top surface, a sidewall disposed about a central axis, and the first groove disposed in the sidewall and configured to receive a first piston ring, wherein the first axially-facing surface has first surface variations that vary unevenly at least partially about a circumference of the piston at an ambient temperature.
A method, comprising:
- forming a first axially-facing surface in a first groove of a piston, wherein the piston comprises a top surface, a sidewall disposed about a central axis, and the first groove disposed in the sidewall and configured to receive a first piston ring, wherein the first axially-facing surface has first surface variations that vary unevenly at least partially about a circumference of the piston at an ambient temperature.
Dependencies are inferred from the claim text.