Variable cavity fluid power device
US4815432A · kind A · utility
Inventor
Key dates
| Filing date | Jul 5, 1988 |
| Grant date | Mar 28, 1989 |
| Priority date | — |
| Expiry date | Jul 5, 2008 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY02T10/12
- WIPO fieldEngines, pumps, turbines
- WIPO sectorMechanical engineering
Abstract
A piston rotor and a chamber partitioning rotor are continuously rotated unidirectionally about fixed rotational axes intersecting at an acute angle within a spherical chamber enclosed by a housing. Simultaneous rotation of the rotors and relative angular movement therebetween occurs because of a pivotal joint interconnecting such rotors at the intersection of the rotational axes coinciding with the geometric center of the spherical chamber. Pressure cavities formed between the rotors within the spherical chamber are volumetrically varied in response to the relative movement of the rotors. For internal combustion engine operation, port controlling dome segments within the chamber are rotated at a reduction drive ratio to the chamber partitioning rotor through planetary gearing.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.