Back to results
US 2020/0049193 A1Published application
Main bearing cap stud configuration & assembly method
AssigneeCummins Inc.
InventorAndrew P. Perr
Life of this patent
Estimating the term…
Abstract
The present disclosure provides a stud assembly insertable throughout a base block. The stud assembly includes a retention ring to engage with the base block and provide ease in assembly of the bearing cap stud assembly in an engine configuration without compromising load carrying characteristics of the design.
Claims20
An engine assembly comprising:
- a base block including a first cavity configured to receive a first crankshaft and a second cavity configured to receive a second crankshaft;
- a stud assembly receivable through the base block, the stud assembly including:
- a sleeve encircling the stud assembly, the sleeve configured to create a cooling annulus for the stud assembly;
- and
- a first ring encircling the stud assembly, the first ring configured to retain the stud assembly onto the base block by engaging with a groove in the base block.
2 more elements
A method of assembling a bearing cap stud configuration comprising:
- installing a first stud assembly and a second stud assembly within the base block;
- coupling a first bearing cap onto a first end of the first stud assembly and a first end of the second stud assembly;
- coupling a second bearing cap onto a second end of the first stud assembly and a second end of the second stud assembly;
- partially torqueing the first bearing cap onto the first ends of the first and second stud assemblies;
- fully torqueing the second bearing cap onto the second ends of the first and second stud assemblies;
- and
- fully torqueing the first bearing cap onto the first ends of the first and second stud assemblies.
4 more elements
Dependencies are inferred from the claim text.