Back to results
US 10,094,325 B2Granted
Cylinder liner
AssigneeZynp International Corp.
InventorRodrigo Favaron
Life of this patent
Estimating the term…
Abstract
Cylinder liners, methods of forming the same, and outer surface designs of a cylinder liner having as-cast projections with certain functional shapes are provided. The as-cast projections increase the clamping performance of the cylinder liner and do not result in any air gaps between a cast aluminum block and the cylinder liner.
Claims25
A cylinder liner comprising:
- a plurality of as-cast projections formed on an exterior surface thereof, the plurality of as-cast projections including the following portions of projections:
- (a) projections having a lightbulb-like shape, each of the projections having a lightbulb-like shape including a first diameter adjacent to the surface of the cylinder liner, a second diameter spaced apart from the first diameter and terminating at an end of the projection, and a third diameter therebetween less than the first and the second diameters;
- (b) conjoined projections, each of the conjoined projections including a plurality of peaks, each peak sharing a shoulder with another peak;
- and
- (c) vermicular projections, each of the vermicular projections having a non-circular cross-section substantially planar to the exterior surface, the vermicular projections including one of a C-shaped non-circular cross-section substantially planar to the exterior surface and an S-shaped non-circular cross-section substantially planar to the exterior surface.
2 more elements
A cylinder liner comprising:
- a plurality of as-cast vermicular projections formed on an exterior surface thereof, each of the as-cast vermicular projections having a non-circular cross-section substantially planar to the exterior surface, the as-cast vermicular projections including one of a C-shaped non-circular cross-section substantially planar to the exterior surface and an S-shaped non-circular cross-section substantially planar to the exterior surface;
- wherein the as-cast vermicular projections have a substantially similar height from 0.25 mm to 0.75 mm.
A cylinder liner comprising:
- a plurality of as-cast vermicular projections formed on an exterior surface thereof, each of the as-cast vermicular projections having a non-circular cross-section substantially planar to the exterior surface, the as-cast vermicular projections including one of a C-shaped non-circular cross-section substantially planar to the exterior surface and an S-shaped non-circular cross-section substantially planar to the exterior surface;
- wherein the as-cast vermicular projections include from 10 as-cast vermicular projections per square centimeter to 100 as-cast vermicular projections per square centimeter.
Dependencies are inferred from the claim text.