US 11,655,911 B2
Linear drive
Tobias Gehrig, Ahorn (DE)
Assigned to WITTENSTEIN SE, Igersheim (DE)
Filed by WITTENSTEIN SE, Igersheim (DE)
Filed on Dec. 7, 2021, as Appl. No. 17/544,173.
Claims priority of application No. 102020132793.5 (DE), filed on Dec. 9, 2020.
Prior Publication US 2022/0178463 A1, Jun. 9, 2022
Int. Cl. F16K 31/53 (2006.01); F16K 31/52 (2006.01)
CPC F16K 31/53 (2013.01) [F16K 31/523 (2013.01)] 13 Claims
OG exemplary drawing
 
1. A linear drive having a crank mechanism, the linear drive comprising:
a first crankshaft associated with a piston rod via a first connecting rod,
a second crankshaft associated with the piston rod via a second connecting rod, and
a planetary gear for rotationally driving the first crankshaft and the second crankshaft,
wherein the first crankshaft is associated with an internal gear of the planetary gear, and wherein the second crankshaft is associated with a further internal gear of the planetary gear.