SOLENOID VALVE Russian patent published in 2008 - IPC F16K49/00 F16K31/02 

FIELD: electricity.

SUBSTANCE: solenoid valve has locking group, inlet and outlet pipes, heating element and switch. First switch input is connected with common wire of on-board power system. The second switch input is linked with power line for solenoid valve heating and connected to anode of first diode. Cathode of the first diode is integrated with cathode of the second diode and connected to the first winding of solenoid valve. The third switch input is connected to power line for solenoid valve switching on, linked with anode of the second diode, with the first end of the first relay and with triggering input of univibrator. The second end of mentioned relay is connected to common wire. Univibrator output is supplied to the first end of the second relay winding. The second end of this relay is supplied to common wire of on-board power system. Timing input of univibrator is connected with central contact of relay group of the first relay. Temperature transmitter is connected to circuit-opening contact of relay group. It is mounted near solenoid valves windings. Inlet pipe is linked with locking group connected with outlet pipe. The second relay group of contacts for the first relay is connected with common wire of on-board system, with relay group of contacts for the second relay and with the second valve winding. Relay group of the second relay is connected with the first solenoid winding. It is connected to common wore of power supply and to cathodes of the first and the second diodes.

EFFECT: reliability enhancement; reduction of material consumption and improvement of serviceability.

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