F - Mech Eng,Light,Heat,Weapons – 04 – B
Patent
F - Mech Eng,Light,Heat,Weapons
04
B
103/142
F04B 9/06 (2006.01) F04B 9/04 (2006.01) F04B 13/00 (2006.01)
Patent
CA 1255153
ABSTRACT OF THE DISCLOSURE A driving arrangement for a pump, especially a liquid metering pump, includes a pump tappet mounted on a support for displacement in and opposite to a predetermined direction dur- ing a pumping and a return stroke thereof, respectively. A re- storing spring member urges the pump tappet opposite to the predetermined direction. There is further provided a mechani- cal energy storage device which includes a storage tappet mounted on the support spaced from the pump tappet for dis- placement in and opposite to the predetermined direction, and an elastically yieldable storage member urging the storage tap- pet in the predetermined direction. The tappets are alternat- ingly displaced against the forces exerted thereon by the re- spective spring and storage members by a motor-driven eccen- tric member interposed between the tappets and having an outer surface which acts on the pump tappet at least during a pre- determined part of each of the strokes to displace the pump tappet against the force of the restoring spring member in the predetermined direction, and on the storage tappet to displace the same opposite to the predetermined direction with atten- dant storage of mechanical energy in the compressible storage member for transmission of such stored mechanical energy to the pump tappet during subsequent movement of the storage tappet in the predetermined direction. - 22 -
520658
Cillichemie Ernst Vogelmann Gmbh & Co.
Kirby Eades Gale Baker
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