Exhaust blockage system for engine shut down
US6401590B1 · kind B1 · utility
Assignee
Inventors
Key dates
| Filing date | Jul 24, 2000 |
| Grant date | Jun 11, 2002 |
| Priority date | — |
| Expiry date | Jul 24, 2020 |
Classification
- Technology area (CPC B)Performing Operations; Transporting
- CPC primaryB63H21/34
- WIPO fieldEnvironmental technology
- WIPO sectorChemistry
Abstract
A flow blocking device is lowered by cable from a helicopter for insertion into the exhaust gas stack of a fuel burning combustion engine propelling a marine vessel under full engine speed. The wall of the exhaust stack are engaged upon entry of the flow blocking device to insure its retention within the exhaust stack and to initiate in sequence ejection of cooling water into the outflow of the exhaust gas followed by pressurized gas expansion of a flexible hose portion of the flow blocking device into sealing contact with the walls of the exhaust stack to stop exhaust gas outflow and cause back pressure build up to a high engine shut down level.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.