Bearing cap of internal combustion engine
US10267352B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Oct 3, 2014 |
| Grant date | Apr 23, 2019 |
| Priority date | — |
| Expiry date | Oct 3, 2034 |
Classification
- Technology area (CPC F)Mechanical Engineering; Lighting; Heating
- CPC primaryF05C2251/042
- WIPO fieldMechanical elements
- WIPO sectorMechanical engineering
Abstract
A bearing cap (1) is attached to a bulkhead (22) of a cylinder block (21) made of a light metal through a pair of bolts (24). The bearing cap (1) has a frame (2) made of an iron-based metal and a cast light-alloy part (3). The frame (2) has a pair of pillar parts (9) through which the bolts (24) extend and a circular-arc-shaped arch section (10). At high temperatures, the span of the pair of the bolts (24) increases due to thermal expansion of the light-alloy material, and the pair of the pillar parts (9) expand. This causes the middle part of the arch section (10) to shift upward, thereby suppressing an increase in bearing clearance.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.