Piston
AssigneeToyota Jidosha Kabushiki Kaisha
InventorsTakuzo HIRANO, Ichiro YAMAGUCHI, Nobuhiko SODA, Hironori AOYAMA, Kazuya MIKASHIMA, Hiroyuki ITO
Life of this patent
Estimating the term…
Abstract
A piston includes: a piston head; and a piston skirt connected to the piston head, wherein the piston skirt includes wall portions protruding outward from a surface of the piston skirt, the wall portions adjacent to each other in a circumferential direction of the piston skirt are inclined in directions opposite to each other with respect to a direction of movement of the piston in a bore for the piston, and define a tapered portion, and the tapered portions are spaced away from each other in the circumferential direction of the piston skirt.
Claims9
A piston comprising:
- a piston head;
- and
- a piston skirt connected to the piston head,
- wherein
- the piston skirt includes wall portions protruding outward from a surface of the piston skirt,
- the wall portions adjacent to each other in a circumferential direction of the piston skirt are inclined in directions opposite to each other with respect to a direction of movement of the piston in a bore for the piston, and define a tapered portion,
- the tapered portions are spaced away from each other in the circumferential direction of the piston skirt, and
- a distance between lower end portions of the tapered portions adjacent to each other is smaller than a distance between upper end portions of the tapered portions adjacent to each other.
(canceled)
Dependencies are inferred from the claim text.