3results about How to "Reduce pressure loss" patented technology

The present application relates to closed pump control hydraulic technology field, especially to a kind of closed pump control hydraulic circuit, adaptive flow compensation system and control method thereof.The closed pump control hydraulic circuit includes the piston assembly of two synchronously movable piston rods, which is installed in main hydraulic cylinder and adaptive flow compensator to form an integrated unit, and the main hydraulic cylinder and adaptive flow compensator are connected by the third electromagnetic switch switching valve, which can form a compensation hydraulic circuit for closed pump control main hydraulic cylinder, and when working in four-quadrant operating condition, it forms the absorption and compensation of asymmetric flow in the main hydraulic cylinder.The present application solves the structural problem of asymmetric flow of single-outlet-rod hydraulic cylinder in closed pump control hydraulic system from the root, without relying on complex auxiliary devices or high-difficulty special pump body design, thus having important significance in improving system reliability, reducing cost and optimizing control performance.

The utility model relates to medical equipment field, concretely for a pressure detection device for breathing balloon safety valve, including three -way connection main part, the first end of three -way connection main part is the mask interface end, the second end is balloon connection end, the third end is detection airway, the pressure detection module includes pressure gauge and electronic alarm, the pressure gauge is passed through the communication of Bourdon tube and detection airway, the electronic alarm fixed mounting is in the outer wall of detection airway, and the gas pressure in detection airway is passed through Bourdon tube and is delivered to mechanical pressure gauge, and real -time display pressure value, the pressure of pressure -resistance type sensor synchronous detection airway, if exceeds the preset threshold value through the setting button setting, immediately triggers the buzzer and LED warning light alarm, realizes the sound and light double warning, ensures the medical staff in the first -aid fast identification abnormal high pressure (such as airway obstruction or excessive ventilation), significantly reduces the risk of gas pressure injury.

The utility model provides a fuel cell humidifier, which relates to the technical field of fuel cell auxiliary equipment, and comprises a shell, a humidifying cavity is arranged in the shell, a membrane component is arranged in the humidifying cavity, one end of the shell is in threaded connection with an outlet end cover, the other end of the shell is in threaded connection with an inlet end cover, and the inlet end cover is in threaded connection with an air inlet. A dry gas outlet is formed in one end of the outlet end cover, a dry gas inlet is formed in one end of the inlet end cover, a wet gas inlet is formed in one end of the bottom of the shell, and a wet gas outlet is formed in the other end of the bottom of the shell; six groups of small gas guide plates and a group of large gas guide plates are uniformly distributed on the inner walls of the moisture inlet and the moisture outlet in the circumferential direction, the humidifier is compact in overall structural design, each component is reasonable in layout, the size is effectively reduced, the gas guide plates are additionally arranged in the humidifier, the humidifying efficiency is improved, and the wet side gas pressure loss is reduced; and the device is convenient to install and use in a fuel cell system with limited space.