Pressure wave supercharger with vibration damped rotor
US4646704A · kind A · utility
Assignee
Inventors
Key dates
| Filing date | Jan 16, 1986 |
| Grant date | Mar 3, 1987 |
| Priority date | — |
| Expiry date | Jan 16, 2006 |
Classification
- Technology area (CPC F)Mechanical Engineering; Lighting; Heating
- CPC primaryF04F13/00
- WIPO fieldEngines, pumps, turbines
- WIPO sectorMechanical engineering
Abstract
A pressure wave supercharger for internal combustion engines, particularly those in motor vehicles, has a rotor, driven in proportion to the engine speed, with a plurality of rotor cells oriented parallel to its axis of rotation. The cells are connected, at one end, in the exhaust gas flow between the exhaust manifold and the exhaust system and, at the other end, in the intake air stream between the air intake and the intake manifold. Placed on the rotor and concentric therewith is a rigid vibration damping ring, which is contacted by a support, firmly attached to the rotor, so as to create friction. The friction produced by sliding of the rigid ring on the support, acts to absorb a large part of the vibration energy of the rotor and thereby, correspondingly, to eliminate the production of annoying noise.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.