Crankshaft with lubrication passages
US5163341A · kind A · utility
Assignee
Inventors
Key dates
| Filing date | Oct 8, 1991 |
| Grant date | Nov 17, 1992 |
| Priority date | — |
| Expiry date | Oct 8, 2011 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY10T74/2185
- WIPO fieldMechanical elements
- WIPO sectorMechanical engineering
Abstract
A crankshaft for a V-type engine comprises an intermediate main journal which is rotatably supported in a main bearing, a primary crankpin, a pair of crankarms, and a second crankpin. The intermediate main journal has a primary boundary plane extending between the longitudinal axis of the intermediate main journal and the outer surface of the intermediate main journal. The intermediate main journal also has a secondary boundary plane extending between the longitudinal axis of the intermediate main journal to the outer surface of the intermediate main journal. A main cross passage extends through the intermediate main journal. The main cross passage is contained in a radial plane of the intermediate main journal. The main cross passage is oriented with respect to the primary and secondary crankpins so that the ends of the main cross passage are between the sides of the primary and secondary boundary planes which face the primary crankpin. A primary connecting passages extends from the main cross passage through the one crankarm to the outer surface of the primary crankpin.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.