Connecting rod lubrication recess
AssigneeMahle International GmbH
InventorsMichael T. Lapp, Dan Dinu, Roger A. Krause, Alan Stephen McEwan
Life of this patent
Estimating the term…
Abstract
Exemplary connecting rods and methods of making a connecting rod are disclosed. A method of making a connecting rod may include the step of providing a connecting rod blank, where the connecting rod blank includes a crankshaft end and a piston pin end. The method may further include forming a crankshaft pin recess in the crankshaft end of the connecting rod blank and a piston pin recess in the piston pin end, and forming at least one lubrication recess in the piston pin end of the connecting rod blank. The lubrication recess and the piston pin recess may both formed concurrently.
Claims15
A method of manufacturing a connecting rod, comprising:
- providing a connecting rod blank, where the connecting rod blank includes a crankshaft end and a piston pin end;
- and
- forming a crankshaft pin recess in the crankshaft end of the connecting rod blank, a piston pin recess in the piston pin end, and at least one lubrication recess in the piston pin end of the connecting rod blank;
- and
- wherein the lubrication recess and the piston pin recess are both formed simultaneously.
A method of manufacturing a piston assembly, comprising:
- making a connecting rod, including:
- providing a connecting rod blank, where the connecting rod blank includes a crankshaft end and a piston pin end, and
- forming a crankshaft pin recess in the crankshaft end of the connecting rod blank, a piston pin recess in the piston pin end of the connecting rod blank, and at least one lubrication recess at an inner surface of the piston pin recess, wherein the at least one lubrication recess includes an outer profile having a final predetermined configuration;
- wherein the lubrication recess and the piston pin recess are formed simultaneously
- assembling the connecting rod to a piston, the connecting rod including the predetermined final configuration of the outer profile;
- and
- substantially defining the predetermined final configuration of the outer profile of the at least one lubrication recess during the forming of the lubrication recess step.
Dependencies are inferred from the claim text.