| 发明名称 |
METHODS AND APPARATUS TO BIAS SPOOL VALVES USING SUPPLY PRESSURE |
| 摘要 |
Methods and apparatus to bias spool valves using supply pressure are disclosed. An example apparatus includes a housing of a spool valve, the housing including a first port to receive a fluid at a supply pressure. The example apparatus further includes a spool within the housing. A position of the spool is to be selectively controlled via an input force acting on the spool, the position of the spool to define a path of a flow of the fluid through the spool valve from the first port to a second port of the housing. A biasing force is to bias the spool opposite the input force, the biasing force to be generated from the supply pressure applied to an end of the spool. |
| 申请公布号 |
US2015129070(A1) |
申请公布日期 |
2015.05.14 |
| 申请号 |
US201314075804 |
申请日期 |
2013.11.08 |
| 申请人 |
FISHER CONTROLS INTERNATIONAL LLC |
发明人 |
Winkler Richard Jay;Metschke Christopher Steven;Busse Bradley Dale |
| 分类号 |
F16K11/07;F16K31/128;F16K31/124;F16K31/126;F16K31/122 |
主分类号 |
F16K11/07 |
| 代理机构 |
|
代理人 |
|
| 主权项 |
1. An apparatus comprising:
a housing of a spool valve, the housing including a first port to receive a fluid at a supply pressure; and a spool within the housing, a position of the spool to be selectively controlled via an input force acting on the spool, the position of the spool to define a path of a flow of the fluid through the spool valve from the first port to a second port of the housing, wherein a biasing force is to bias the spool opposite the input force, the biasing force to be generated from the supply pressure applied to an end of the spool. |
| 地址 |
Marshalltown IA US |
