Piston of an internal-combustion engine
AssigneeMahle International GmbH
InventorsPhilipp Licht, Rainer Scharp
Life of this patent
Estimating the term…
Abstract
A piston of an internal-combustion engine may include a piston head and a piston skirt, a cooling duct circulating in the piston head, a boss for receiving a piston pin, and a feed hopper for supplying cooling oil into the cooling duct. The feed hopper may be fastened to another component of the piston via a retaining lug by at least one of a material closure, a force closure, and a positive closure.
Claims20
A piston of an internal-combustion engine, comprising:
- a piston head and a piston skirt;
- a cooling duct circulating in the piston head;
- a boss for receiving a piston pin;
- and
- a feed hopper for supplying cooling oil into the cooling duct;
- wherein the feed hopper is fastened to another component of the piston via a retaining lug by at least one of a material closure, a force closure, and a positive closure;
- wherein the retaining lug is L-shaped with an L-shank extending in a peripheral direction of the piston.
An internal-combustion engine comprising at least one piston including:
- a piston head and a piston skirt;
- a cooling duct circulating in the piston head;
- a boss for receiving a piston pin;
- and
- a feed hopper for supplying cooling oil into the cooling duct;
- wherein the feed hopper is fastened to an inside of the piston skirt or to the boss via a retaining lug by at least one of a material closure, a force closure, and a positive closure.
A piston of an internal-combustion engine, comprising:
- a piston head and a piston skirt;
- a cooling duct circulating in the piston head;
- a boss for receiving a piston pin;
- and
- a feed hopper for supplying cooling oil into the cooling duct;
- wherein the feed hopper is fastened to another component of the piston via a retaining lug by at least one of a material closure, a force closure, and a positive closure;
- wherein the retaining lug is L-shaped with an L-shank extending in a peripheral direction of the piston;
- and
- wherein the cooling duct has a feed aperture through which the feed hopper protrudes.
A piston of an internal-combustion engine, comprising:
- a piston head and a piston skirt;
- a cooling duct circulating in the piston head;
- a boss for receiving a piston pin;
- and
- a feed hopper for supplying cooling oil into the cooling duct;
- wherein the feed hopper is fastened to another component of the piston via a retaining lug by at least one of a material closure, a force closure, and a positive closure;
- wherein the retaining lug is formed integrally with the feed hopper;
- and
- wherein the feed hopper is a slotted sheet-metal shaped part.
Dependencies are inferred from the claim text.