VIBRATION PUMP Russian patent published in 2010 - IPC F04F7/00 

FIELD: engines and pumps.

SUBSTANCE: pump includes housing 1, electromagnet with shell-type magnetic circuit consisting of cores 2 and 3, electrical coil reel 5, yoke 4 and armature connected to shock absorber, cover plates 15 and 17, working chamber, suction valve 21 and outlet connection pipe 18. Magnetic circuit and yoke are made of electrical steel strap as a solid part. Armature is made in the form of bobbin 6 of electrical steel strap, the inner and outer diametre of which corresponds to inner and outer diametre of cores 2 and 3 and which is rigidly fixed in metal washer 7. Armature is rigidly connected through a stock to two rubber-metal shock absorbers. Metal insert of one of them is made in the form of plain washer with external and central discs and elastic part between them. On central disc there installed and rigidly attached to it is bushing with blind thread and transverse grooves. Insert of the other one is provided with central bushing with closed thread and transverse and longitudinal grooves. One of them is installed on upper edge of housing and fixed on it through top cover 15 so that working chamber 16 is formed, in connection pipes of which there arranged at one and the same level are working planes of supply 22 and suction 21 valves, and the other one is installed on its lower edge and fixed through lower cover.

EFFECT: increasing operating and technical characteristics of pump owing to effective use of magnetic field energy and owing to total stiffness of rubber-metal shock absorbers.

3 cl, 2 dwg