| 摘要 |
This invention relates to expansible chamber positive displacement pumps, motors, and engines and includes variable displacement features. It provides a different method of making vane, piston, and roller abutment pumping devices which has benefits in sealing, porting dynamic and pressure balancing, and increased rotational speeds; resulting in better performance and higher efficiency. Since this is a technology that is parallel to existing technologies, this application is complex. Although this invention involves a simple change in the function of parts of common machines, this can result in large benefits in energy consumption due to increased efficiency. In general liquid pumping, the industry is dominated by centrifugal pumps. Although these pumps are "user friendly" and convenient, they are notoriously inefficient, especially at higher head pressures. Variable displacement positive displacement pumps can be much more efficient. Run as hydroelectric motors, these devices can utilize the potential energy only on demand with very high efficiency and also provide the utilization of low head sources. The use of these devices as combustion engines could be very productive, especially as automotive engines. An improvement in efficiency in this area can have a large impact on the environment through the reduction of greenhouse gases. The use of the heat engine as an air cycle Brayton refrigeration system could benefit the ozone layer by replacing organic refrigeration with air. |
