Subject:- Industrial Fluid Power (IFP)CHAPTER NO: 03

OIL HYDRAULIC CIRCUITS (12 Marks (08) BY

Prof. Kokare A.Y.

BABASAHEB PHADTARE POLYTECHNICKALAMB-WALCHANDNAGAR.

B.P.P. Kalamb-Walchandnagar Prof. Kokare A.Y.

Operating SAC using 3/2 DCV One Directional Motor

using 3/2 DCV

B.P.P. Kalamb-Walchandnagar Prof. Kokare A.Y.

Operating DAC using 4/2 DCV Operating Two SAC using

one 4/2 DCV

B.P.P. Kalamb-Walchandnagar Prof. Kokare A.Y.

Operating only one SAC using 4/2 DCV Operating DAC using 4/3

DCV

B.P.P. Kalamb-Walchandnagar Prof. Kokare A.Y.

Operating Bi-Directional Motor using 4/3 DCV Two Hand Operation of

SAC using Two 3/2 Valves

B.P.P. Kalamb-Walchandnagar Prof. Kokare A.Y.

Two Hand Operation of SAC using Twin pressure Valve Two Hand Operation of

DAC using Two 3/2 Valves

B.P.P. Kalamb-Walchandnagar Prof. Kokare A.Y.

Operating DAC using 5/2 DCV By using Switches and

Double Solenoid 4/2 DCV

B.P.P. Kalamb-Walchandnagar Prof. Kokare A.Y.

By using Limit Valves and Double Pilot 4/2 DCV

B.P.P. Kalamb-Walchandnagar Prof. Kokare A.Y.

Circuit to operate Two SAC in Sequence

B.P.P. Kalamb-Walchandnagar Prof. Kokare A.Y.

Circuit to operate Two DAC in Sequence in one Direction only Circuit to operate Two DAC in

Sequence in Both Direction

B.P.P. Kalamb-Walchandnagar Prof. Kokare A.Y.

Drilling machine Operate DAC and SAC in sequence

B.P.P. Kalamb-Walchandnagar Prof. Kokare A.Y.

Operate Two DAC in sequence Synchronizing Circuit

B.P.P. Kalamb-Walchandnagar Prof. Kokare A.Y.

Hydraulic Shaper Circuit Hydraulic Milling m/c. or Hydraulic surface grinding

B.P.P. Kalamb-Walchandnagar Prof. Kokare A.Y.

Regenerative circuit by using 3/2 DCV

Regenerative circuit by using regenerative type mid-position 4/3 DCV

B.P.P. Kalamb-Walchandnagar Prof. Kokare A.Y.

Regenerative circuit by Pilot to close check valve

B.P.P. Kalamb-Walchandnagar Prof. Kokare A.Y.

Hydraulic circuit for Fast Approach, Slow Cutting and Fast return of Machine Tool

Dual Pump Hydraulic Circuit

B.P.P. Kalamb-Walchandnagar Prof. Kokare A.Y.

Hydraulic Press Circuit using Unloading Valve Hydraulic Circuit using

Counter Balance Valve

B.P.P. Kalamb-Walchandnagar Prof. Kokare A.Y.

Deceleration Circuit or Cushioning Circuit Application of Shuttle

Valve (OR Logic Function)

B.P.P. Kalamb-Walchandnagar Prof. Kokare A.Y.

Application of Twin Pressure Valve (AND Logic Function) Application of Pilot

Check Valve

B.P.P. Kalamb-Walchandnagar Prof. Kokare A.Y.

Hydraulic Time Delay Circuit

B.P.P. Kalamb-Walchandnagar Prof. Kokare A.Y.

Thank youThank you

B.P.P. Kalamb-Walchandnagar Prof. Kokare A.Y.