4results about How to "Stable output pressure" patented technology

The utility model relates to the technical field of hydrogen energy sources, in particular to a 70MPa hydrogen integrated two-stage pressure reduction control device which comprises a valve body, and a gas inlet channel, a high-pressure channel, a first-stage pressure reduction channel, a second-stage pressure reduction cavity and a gas outlet channel are formed in the valve body. The electromagnetic valve is arranged on the side of the valve body, an inlet of the electromagnetic valve communicates with the air inlet channel, and an outlet communicates with the high-pressure channel; the first-stage piston type pressure reducing mechanism is arranged on the valve body, an inlet of the first-stage piston type pressure reducing mechanism communicates with the high-pressure channel, and an outlet communicates with the first-stage pressure reducing channel; the second-stage diaphragm type pressure reducing mechanism is arranged at the top of the valve body, the outlet end of the second-stage diaphragm type pressure reducing mechanism is communicated with the second-stage pressure reducing cavity and can input pressure-reduced gas into the second-stage pressure reducing cavity, and the inlet end of the second-stage diaphragm type pressure reducing mechanism is communicated with the first-stage pressure reducing channel; and the second-stage pressure reducing cavity is connected with the air outlet channel. By means of the unique two-stage pressure reduction structural design, stable pressure reduction output of 70 Mpa hydrogen can be effectively achieved, and the structure is stable and compact.

This utility model discloses an electromagnetic pump for a kitchen appliance burner, relating to the field of electromagnetic pump technology. It includes a pump body with an inlet chamber, a first oil chamber, a pressure-stabilizing oil chamber, and a second oil chamber. The first oil chamber connects the inlet chamber and the pressure-stabilizing oil chamber, and a one-way valve is provided between them. The pressure-stabilizing oil chamber is connected to the second oil chamber. A pressure-stabilizing component is connected to the pressure-stabilizing oil chamber. One end of the outer casing is connected to the pump body, and the other end has an outlet. The electromagnetic component is located inside the outer casing, between the second oil chamber and the outlet. In use, fuel enters through the inlet and flows sequentially through the inlet chamber, the first oil chamber, and the pressure-stabilizing oil chamber, finally entering the second oil chamber. The electromagnetic component pressurizes the fuel in the second oil chamber, and the fuel is then ejected through the outlet. During this process, the pressure-stabilizing component in the pressure-stabilizing oil chamber within the pump body effectively reduces pressure fluctuations and minimizes the interference of the inlet pressure on the outlet pressure, thereby making the output pressure more stable and meeting the high-precision control requirements of combustion power.

This invention provides a dual-mode propulsion system in the field of space propulsion technology, combining xenon propellant electric propulsion and cold gas propulsion. The system comprises a gas storage module and a pressure regulation module connected in series, with an electric propulsion module and a cold gas propulsion module connected in parallel downstream. These modules are controlled by a control and power module, which is shared by both electric and cold gas propulsion. Its advantages include solving the problem of insufficient control torque compared to a single electric propulsion system. Furthermore, because xenon is used as the working propellant, the xenon required for cold gas propulsion and electric propulsion serves as a backup for each other, resulting in high system integration. This meets the stringent limitations of satellite propulsion system size and control resources. Compared to an independent cold gas propulsion system, it achieves stable adjustment of the cold gas thruster's thrust over a wide range. Additionally, the system employs isentropic expansion decompression, reducing energy loss during decompression and lowering the power consumption required for temperature control.

The invention discloses a wide-flow continuous mixing system, which comprises: a mixing tank, the top, the side surface and the bottom of which are respectively provided with a feed inlet, a liquid inlet and a liquid outlet; an outlet of the liquid inlet pipe communicates with the liquid inlet through a first branch pipe, and a flow meter is installed on the liquid inlet pipe and used for measuring the flow in the liquid inlet pipe; the liquid outlet pipe is arranged below the mixing tank and penetrates in the liquid outlet direction to form a liquid outlet front end and a liquid outlet rear end, an inlet is formed in the middle of the liquid outlet pipe, and the liquid outlet pipe is communicated with the liquid outlet through a liquid outlet branch pipe; the second branch pipe is communicated with the liquid inlet pipe and the liquid outlet front end; the two control valves are installed on the first branch pipe and the second branch pipe respectively, and any control valve is used for adjusting the flow in the corresponding branch pipe; and the controller is electrically connected with the flow meter and the control valve. According to the invention, a liquid inlet shunting structure is combined with an active grading adjusting mode, so that the flow adjusting capability of the mixing system is effectively improved, and the continuous, uniform and stable mixing requirements of sand liquid in a wider flow range are adapted and met.