Low-noise-level internal combustion engines
US4343271A · kind A · utility
Assignee
Inventors
Key dates
| Filing date | Jan 16, 1980 |
| Grant date | Aug 10, 1982 |
| Priority date | — |
| Expiry date | Jan 16, 2000 |
Classification
- Technology area (CPC F)Mechanical Engineering; Lighting; Heating
- CPC primaryF02B2275/20
- WIPO fieldEngines, pumps, turbines
- WIPO sectorMechanical engineering
Abstract
In an internal combustion engine with an engine unit support (1) comprising parts directly affected by body resonance as, e.g., cylinder block (2), cylinderhead (3), crankshaft (7) and crankshaft bearings (6), the engine unit support is connected to the crankcase (8) by means of several vibration absorbing and power transmitting elements (29) whereby the crankcase is insulated against body resonance. A sealing element (40; 44) is arranged between the engine unit support (1) for the crankcase (8) and sealing a lower oil-wetted part (15) of the engine oil-tightly against an upper dry part. The vibration absorbing elements (29) are mounted on the one side at the walls (25, 26) of the crankcase (8) and on the other side at the main bearing walls (20, 21) of the engine unit support in the region of the crankshaft axis (22). Thereby, undesireable great deflections of the engine unit support in the region of the crankshaft axis can be avoided and the stressing of the elastic coupling between the flywheel and the gear unit or the elastic sealing elements, respectively, is considerably decreased.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.