393000M024 EXCVATOR HYDRAULICUS SALENDIS solenoid CALVLA RATIONALIS Solenoid (MMMDCCLXVIII) CCCXVII

Differentia electrica proportionalem valvae et solenoidal valvae

Valvae potestate fluxus potest dividitur in duo genera:
 

Unum est switch imperium: aut plene aperta vel plene clausit, fluunt rate est vel maximam vel minimum, non est medium rei publicae, ut Ordinarius electro per valvae, electro vicissim valvae, electro, hydraulicis vicissim valet. The other is continuous control: the valve port can be opened according to the need of any degree of opening, thereby controlling the size of the flow through, such valves have manual control, such as throttle valves, but also electronically controlled, such as proportional valves, servo valves. So the purpose of using proportional valve or servo valve is: to achieve the flow control by electronic control (of course, after structural changes can also achieve pressure control, etc.), since it is throttling control, there must be energy loss, servo valve and other valves are different, its energy loss is greater, because it needs a certain flow to maintain the work of the pre-stage control oil circuit.
Electromagnetic valvae (electro valvae) est usus electromagnetic

Opus principium proportionalem solenoid valvae
   

Electro-hydraulic proportional valve is the proportional electromagnet input voltage signal in the valve to produce corresponding action, so that the working valve spool displacement, valve port size change and complete the pressure and flow output components proportional to the input voltage. Spool obsessio can quoque pasci retro mechanice, hydraulically vel electrically. Electro-Hydrau proportionalis valvae habet varietatem formarum, facile ad uti electrica et computatrum imperium variis electro-hydrau systems, princeps imperium accuratam, flexibile et usu, et fortis anti-coinquinatione, et aliis commoda, et applicationem agrum est expanding. In annis, in progressionem et productionem ex obturaculum-in proportionalis valvulae et proportionalem multiiue valvulae plene considerans characteres constructione machinatione, cum gubernator potestate, onus sensu et pressura ultrices munera. Est magni momenti significationem ad amplio altiore technica gradu mobili hydrau machina.