2results about How to "Reduce inlet pressure" patented technology

The utility model discloses a gear box off-line filtering device and a wind power generation device. The gear box off-line filtering device comprises a filtering mechanism, a flow control valve and a controller, the filtering mechanism is provided with a liquid inlet and a liquid outlet, the liquid inlet is communicated with a lubricating system of a gear box through a liquid inlet pipe, the liquid outlet is communicated with an oil tank of the gear box through a liquid outlet pipe, and the flow control valve is communicated with the liquid inlet pipe. The controller is arranged between the filtering mechanism and the lubricating system, electrically connected with the flow control valve and used for controlling opening and closing of the flow control valve and flow adjustment. According to the technical scheme, the flow control valve and the controller can be additionally arranged on the basis that the gear box is provided with the lubricating system to achieve the filtering function, components such as an oil pump and a motor do not need to be installed, system configuration is simplified, the installation size is reduced, and cost is reduced.

This utility model relates to a welded water pressure reducing valve. The valve body contains a piston cylinder and a piston that cooperates with the piston cylinder. A main spring is located inside the valve cover, and a valve seat is located on the valve stem. A pressure plate that cooperates with the valve seat is located above the valve seat, and a secondary spring is located below the valve seat. A lower pressure cover is located at the bottom of the valve body, and a secondary spring base is located on top of the lower pressure cover. The secondary spring is positioned between the valve seat and the lower pressure cover. The diameter of the main spring is larger than that of the secondary spring. In use, the thrust of the piston and the action of the various springs push the valve stem up and down, changing the opening of the piston cylinder outlet, causing a change in flow resistance, weakening the influence of the inlet pressure, and playing a pressure stabilizing role. This makes it more suitable for high-pressure pressure reduction applications and extends its service life.