PURPOSE: To facilitate formation of control hydraulic pressure steplessly with compact structure by positioning first and second pressure regulating valves in one valve body and also positioning a linear solenoid valve between both pressure regulating valves so that its axial direction is at right angle to both pressure regulating valves.
CONSTITUTION: A hydraulic pressure control device is provided with a first pressure regulating valve which regulates an input line pressure to a pressure according to a signal pressure and feeds the line pressure to a four-wheel drive vehicle differential limit clutch, a second pressure regulating valve which regulates an input line pressure to a constant pressure and outputs it, and a linear solenoid valve which receives the output oil pressure from the second pressure regulating valve, generates a signal pressure corresponding to an electric signal to be input from a computer side, and feeds the signal pressure oil as a signal pressure for the first regulating valve. Then the first and second pressure regulating valves are positioned in one valve body in parallel with each other, and the linear solenoid valve is positioned therebetween so that its axial direction is at right angle to both pressure regulating valves.
ITO HIROSHI
MORISAWA KUNIO
