Patent ID: 9746004
Date: 2017-08-29
CPC Classifications: F04B,F15B

Claim:
1. Pulse controlled linear actuator comprising a working cylinder for receiving a medium introduced through a valve system by a compressor/pump, a piston moving freely in the working cylinder, the piston shank of the piston represents the output of the actuator characterized in that said actuator further comprises a central solenoid ( 1 ) and positioned at least above and under said central solenoid ( 1 ) upper and lower iron cores ( 3 ) are arranged in pairs which are moved alternately by means of said central solenoid ( 1 ) and by means of upper and lower solenoids ( 2 ) which are arranged in pairs, said central solenoid ( 1 ) and said iron cores ( 3 ) are arranged between said upper and lower solenoids ( 2 ), said iron cores ( 3 ) form the compressor/pump having two separate medium spaces ( 14 , 15 ), from the space being between said upper and lower iron cores ( 3 ) said first medium space ( 14 ) is led through a first inlet ( 4 a ) of an upper controlled dual inlet valve ( 4 ) into the portion of said working cylinder ( 9 ) which is above said piston ( 10 ), and in addition it is led through a first inlet ( 8 a ) of a lower controlled dual inlet valve ( 8 ) into the portion of said working cylinder ( 9 ) which is under said piston ( 10 ); the second medium space ( 15 ) is separated from the space being between said upper and lower iron cores ( 3 ) by said iron cores ( 3 ), and is led through a second inlet ( 4 b ) of said upper controlled dual inlet valve ( 4 ) into the portion of said working cylinder ( 9 ) which is above said piston ( 10 ), and in addition it is led through the second inlet ( 8 b ) of said lower controlled dual inlet valve ( 8 ) into the portion of said working cylinder ( 9 ) which is under said piston ( 10 ); and said upper and lower controlled valves ( 4 , 8 ) are counter-phase or phase pulse controlled.