Crankless reciprocating steam engine
US7765803B2 · kind B2 · utility
2Cited by
7References
5Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Feb 27, 2007 |
| Grant date | Aug 3, 2010 |
| Priority date | — |
| Expiry date | Feb 27, 2027 |
Classification
- Technology area (CPC F)Mechanical Engineering; Lighting; Heating
- CPC primaryF02B75/32
- WIPO fieldEngines, pumps, turbines
- WIPO sectorMechanical engineering
Abstract
We present a high-efficiency crankless reciprocating steam engine that loses only a small amount of energy when the rectilinear motion of its piston is changed into the rotary motion of its driveshaft. The present invention continuously rotates a valve in one direction while alternately introducing steam into two piston housing chambers to generate the rotary force of the driveshaft. Therefore, engine efficiency is greatly increased because the inertial force losses in the valve are much smaller compared to the case when the valve rotation stops or changes direction.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.