| 发明名称 | Capacity modulation system for compressor and method | ||
| 摘要 | An apparatus is provided and may include a control valve that moves a pressure-responsive unloader valve between a first position permitting flow through a valve plate and into a compression mechanism and a second position restricting flow through the valve plate and into the compression mechanism. The control valve may include at least one pressure-responsive valve member movable between a first state supplying discharge-pressure gas to the unloader valve to urge the unloader valve into one of the first position and the second position and a second state venting the discharge-pressure gas from the unloader valve to move the unloader valve into the other of the first position and the second position. | ||
| 申请公布号 | US8807961(B2) | 申请公布日期 | 2014.08.19 |
| 申请号 | US201213426094 | 申请日期 | 2012.03.21 |
| 申请人 | Emerson Climate Technologies, Inc. | 发明人 | Wallis Frank S.;Knapke Mitch M.;Bergman Ernest R. |
| 分类号 | F04B49/22;G05D7/00 | 主分类号 | F04B49/22 |
| 代理机构 | Harness, Dickey & Pierce, P.L.C. | 代理人 | Harness, Dickey & Pierce, P.L.C. |
| 主权项 | 1. An apparatus comprising a control valve operable to move a pressure-responsive unloader valve between a first position permitting flow through a valve plate and into a compression mechanism and a second position restricting flow through said valve plate and into said compression mechanism, said control valve including at least one pressure-responsive valve member movable between a first state supplying discharge-pressure gas to said unloader valve to urge said unloader valve into one of said first position and said second position and a second state venting said discharge-pressure gas from said unloader valve to move said unloader valve into the other of said first position and said second position, said at least one valve member including a bore formed therethrough and a ball preventing flow through said bore when said valve element is in said second state. | ||
| 地址 | Sidney OH US | ||