A hydraulically-powered bicycle having a frame, handle bars, a front tire, and a hydraulically powered drive wheel. The drive wheel is powered by oil from a sump which is pressurized by a pair of foot-operated pumps. An accumulator selectively stores and releases energy stored in a spring under the control of a control valve. When released the stored energy provides an energy boost to the bicycle. The pumps are dual piston devices that selectively couple a second piston to a first piston. The pumps implement a power control using the dual pistons. Coupling the pistons together is performed by a linkage assembly having linkage arms and linkage pivots.
Hybrid hydraulic-operated bicycle
21.03.2017
Patent
Elektronische Ressource
Englisch
Bicycle hydraulic operating device and bicycle hydraulic device assembly
Europäisches Patentamt | 2015
|Bicycle hydraulic operating device and bicycle hydraulic device assembly
Europäisches Patentamt | 2015
|