| 摘要 |
The valve assembly according to the present invention includes two valves, an inner valve and an outer valve that cooperate to control the fluid flow in fluid-containing member such as a vehicle tire. The outer valve cooperates with the inner valve to control the flow of fluid in and out of the fluid-containing member. The valve assembly includes an energy source such as a battery between the two valves. During normal operation, the outer valve is closed and prevents the flow of fluid out of the fluid-containing member. If the outer valve is opened, the inner valve is also open to permit the fluid flow in the fluid-containing member. If the energy source is removed, the inner valve component is closed and prevents fluid flow out of the fluid-containing member. The energy source in the valve assembly can be conveniently replaced without the need to deflate or otherwise dismantle the fluid-containing member. This is particularly advantageous when the fluid-containing member is a vehicle tire. By being located inside the valve assembly, the energy source is protected from hazards such as water, dirt, and physical forces. The energy source can be replaced without deflating the tire. The tire can be filled in the normal manner since the inner valve is opened when the outer valve is opened. The valve assembly and energy source are typically part of an electric circuit that can be mounted on a support plate that is attached to the base of the inner valve. |
