Supercharged multi-cylinder reciprocating piston-internal combustion engine with several exhaust gas turbochargers operating in parallel
US4903489A · kind A · utility
Assignee
Inventor
Key dates
| Filing date | Jul 6, 1988 |
| Grant date | Feb 27, 1990 |
| Priority date | — |
| Expiry date | Jul 6, 2008 |
Classification
- Technology area (CPC F)Mechanical Engineering; Lighting; Heating
- CPC primaryF01N13/107
- WIPO fieldEngines, pumps, turbines
- WIPO sectorMechanical engineering
Abstract
During idling or partial load of the reciprocating piston-internal combustion engine, the exhaust gas turbocharger (18) is shut-down and the fuel supply is interrupted with some cylinders (12). An optimum charging air supply matched to the operating condition of the reciprocating piston-internal combustion engine results by a controllable shifting device (32) in the charging air line section (14) of the shut-down cylinders (12). The passage from the charging air line (19) to the charging air line section (14) is closed by the shifting device (32) during operating periods with interruption of the fuel supply to the cylinders (12). At the same time, a passage opens from a suction opening (33) to the charging air line section (14), through which the air requirement of the disabled cylinders (12) is covered. The interconnected exhaust gas turbocharger (17) thereby operates in a favorable operating range.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.