Boot seal for variable compression-rate engine
US8936248B2 · kind B2 · utility
Assignees
Inventors
Key dates
| Filing date | Feb 29, 2012 |
| Grant date | Jan 20, 2015 |
| Priority date | — |
| Expiry date | Feb 24, 2033 |
Classification
- Technology area (CPC F)Mechanical Engineering; Lighting; Heating
- CPC primaryF16J3/042
- WIPO fieldMechanical elements
- WIPO sectorMechanical engineering
Abstract
A boot seal for variable compression-rate engine includes a boot-seal element, and a reinforcement member. The boot-seal element includes an inner layer, and an outer layer. The inner layer is disposed on the inner face of the boot-seal element, and is composed of a fluorinated rubber. The outer layer is disposed on a more outer side of the boot-seal element than is the inner layer. Moreover, the boot-seal element is formed in a circumferentially developed state so as to have circumferential ends, and is then completed by joining the circumferential ends with each other. Thus, the boot-seal element makes an elastically deformable cylindrical bellows shape having a root that dents inward diametrically. In addition, the reinforcement member is disposed in the root of the cylindrical bellows-shaped boot-seal element at least.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.