Insulated port liner assembly
US5593745A · kind A · utility
Assignee
Inventors
Key dates
| Filing date | Feb 24, 1994 |
| Grant date | Jan 14, 1997 |
| Priority date | — |
| Expiry date | Feb 24, 2014 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY10T428/1393
- WIPO fieldEngines, pumps, turbines
- WIPO sectorMechanical engineering
Abstract
The design and construction of past exhaust port liners with heat insulation capabilities have had to become more simple in order to reduce costs. However, less costly exhaust port liners may have inferior heat insulation capabilities. The present invention overcomes this and other problems with a means for encapsulating an insulating layer of material. The encapsulating means is composed of fiberglass cloth with the ability to withstand high temperatures. A blanket is formed when the fiberglass cloth encapsulates the insulating layer. The blanket is stitched in a quilted pattern to form a plurality of individual pockets. The blanket is wrapped around a ceramic body of a port liner. The quilted stitching pattern, due to separating the insulating layer into the plurality of individual pockets, protects the pockets individually. If damage should occur to one of the plurality of pockets, the insulating layer would remain intact within the remaining plurality of pockets. Therefore, the surrounding pockets retain their individual insulating layer increasing the durability of the blanket and prolonging the life of the insulating layer. The ability to protect the insulating layer from cat…
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.