Piston displacement device for reciprocating compressor
US7934910B2 · kind B2 · utility
6Cited by
16References
10Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Sep 14, 2005 |
| Grant date | May 3, 2011 |
| Priority date | — |
| Expiry date | Oct 6, 2027 |
Classification
- Technology area (CPC F)Mechanical Engineering; Lighting; Heating
- CPC primaryF04B35/045
- WIPO fieldElectrical machinery, apparatus, energy
- WIPO sectorElectrical engineering
Abstract
A piston displacement device for a reciprocating compressor comprises a piston linearly reciprocated in a cylinder and having a stroke length varied by a reciprocating motor, a plurality of resonance springs for guiding a resonant motion of the piston, and a piston transfer unit for moving the piston forward or backward in a motion direction of the piston according to a capacitance variation of a compressor and thereby maintaining the same top dead center. The piston is moved according to a capacitance variation of the compressor thereby to minimize a dead volume thereof and to increase the efficiency of the compressor.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.