Cam 1, designed as a circular disk, rotates about fixed axis A eccentrically located with respect to the geometric axis of the cam, and is driven by two gears, 4 and 5. The cam is enclosed in slot a of slider 2, reciprocating in fixed guides b and having at its ends plates 6 which contact and deform elastic diaphragms 3. This alternately increases and decreases the pressure in the chambers beyond the diaphragms and is used as the pumping action.
$4119$EHP,RP$