New water hydraulic proportional directional control valve

Uporaba vodne hidravlike je zaradi vse večje ekološke osveščenosti čedalje bolj pogosta. Ker vodna hidravlika v razvoju še zaostaja za oljno, je razvoj novih sestavin ključnega pomena. V okviru diplomske naloge smo izboljšali koncept že obstoječega proporcionalnega potnega ventila za vodno hidravliko. Ventil je zasnovan za delovne tlake do 35 MPa in pretoke do 60 l/min pri tlačni razliki do 2 MPa. Izboljšali smo ohišje in krmilne bate ter razvili nov proporcionalni magnet. Nov ventil smo tudi izdelali. Izvedli smo še simulacijo pretoka, numerične izračune in meritve na ventilu. Uspelo nam je znatno izboljšati obstoječi ventil.Use of the water hydraulics is becoming more common, because of the increasing environmental awareness. Water hydraulics are behind in development from oil hydraulics. That is why the development of new components is essential. In this thesis we improved the concept of existing proportional directional control valve for water hydraulics. The valve is designed for operating pressures up to 35 MPa and flows of 60 l/min at the pressure difference of 2 MPa. We improved the design of the housing and control pistons. We also developed a new proportional magnet and manufactured the new valve. We did flow simulations, numerical calculations and measurements on the new valve. We have succeeded in improving the previous valve