5 results about "Magnetic valve" patented technology

A braking system for farm tractors and similar vehicles, has a differential braking system and a hydraulic system for the braking assistance forming a system unit (H) which includes two circuit branches (H1,H2), each circuit branch operating the braking with respect to one side of the vehicle. To the system unit are applied, through connection interfaces (36,37), two control units (C1,C2), each control unit including an electrovalve (20) and a distributor (24) operated by the electrovalve, each distributor controlling the operation of the system unit (H) with respect to one of the circuit branches, and each electrovalve being singularly controlled by an electronic control circuit (EL) provided with sensors of the main vehicle parameters, such as a sensor (V) of the vehicle speed, sensors (R) of the speed of singular wheels, sensors (P) of the positions of the braking pedals and a sensor (A) of the position of the accelerator pedal.

The invention discloses a self-coupling step-down compensation integrated soft start device which couples the two functions of a self-coupling transformer and a magnetic-valve type controllable reactor together through an ingenious circuit and magnetic circuit design, and relates to the start-up of an extra-high/ultra-high capacity high-voltage motor. A high-voltage side magnetic core and a low-voltage side magnetic core are completely the same in structure, the high-voltage side magnetic core is composed of a first iron core, a second iron core and a first side yoke, a first coil and a second coil are wound on the first iron core, a third coil and a third coil are wound on the second iron core, and the other end of each of the first coil and the third coil is connected with the other end of each of the second coil and the fourth coil in parallel; one end of a high-voltage side winding is connected with the positive pole of an input power supply, the other end of the high-voltage side winding is connected with the input end of a low-voltage winding and accessed to one end of a motor, and the other end of the low-voltage side winding is connected with the negative pole of the power supply and the other end of the motor. The self-coupling step-down compensation integrated soft start device is capable of smoothly changing the impedances of a high-voltage side and a low-voltage side, low in start current, small in size, stable in start performance, fast in response speed, and long in service life.

The invention belongs to the technical field of injectors, particularly to a natural gas and diesel injector of a novel control mode. The natural gas and diesel injector of the novel control mode comprises an injector shell body, a natural gas magnetic valve, a diesel magnetic valve and a valve body. The injector shell body is provided with the natural gas magnetic valve, the diesel magnetic valveand the valve body. Joint of valve body and injector shell body is provided with a middle body. The valve body is internally provided with a needle valve and a gas valve. The injector shell body is provided with a diesel high pressure oil inlet, a natural gas high pressure inlet and a diesel return channel. The natural gas high pressure inlet is communicated with a ring belt through a connectingair passage and an air passage in the shell body pass through a middle body air passage and a valve body air passage on the middle body. The natural gas and diesel injector of the novel control mode has the beneficial effects that control flexibility is wide, independent control and independent injection of double fuel of diesel and the natural gas can be achieved, lengths of the needle valve andthe gas valve are reduced in design and is convenient to machine , meanwhile a coupled structure and synchronous movement which a gas valve guide sleeve drives the gas valve are introduced to avoid complicated technology and improve production consistency and reliability of products, and cost is reduced.