Pump drive apparatus
US6527662B2 · kind B2 · utility
32Cited by
8References
14Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | May 21, 2001 |
| Grant date | Mar 4, 2003 |
| Priority date | — |
| Expiry date | May 21, 2021 |
Classification
- Technology area (CPC F)Mechanical Engineering; Lighting; Heating
- CPC primaryF16H2037/088
- WIPO fieldMechanical elements
- WIPO sectorMechanical engineering
Abstract
Between a water pump 3 and an electric motor 1, there is interposed a toroidal-type continuously variable transmission 2. By changing the gear change ratio of the toroidal-type continuously variable transmission 2, the water supply quantity can be changed while the electric motor 1 is being operated at a constant speed.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.