When I say my prototype is 50cc, I mean the volume of air moving into the cylinder is 50cc (49.5cc actually). Because I'm employing Low Temperature Combustion to prevent formation of NOx, however, my engine runs at now more than 0.48 equivalence (with 1.0 being stoichiometric). That means my effective displacement for comparison with other 50cc engines is 21.2 cc (meaning I'm putting in as much fuel as a 22.2 cc engine running at full stoichiometric). Why does this matter? Everyone regulates scooters to some cc figure (50cc being the lowest common figure) based on the amount of air they consume. As a result, I'm being penalized by the fact that I use Low Temperature Combustion to reduce emissions . Nonetheless, My analysis indicates an 11% improvement in torque, 76% reduction in fuel consumption, and 66% reduction in volume relative to the very popular GY6 engine (http://fixmychinesescooter.com/139qmb-gy6-50cc/) and even greater improvements relative to Honda's 50cc four-stroke (http://engines.honda.com/models/model-detail/gxh50).
Red Flag Submitted
Thank you for helping keep Eng-Tips Forums free from inappropriate posts. The Eng-Tips staff will check this out and take appropriate action.
Reply To This Thread
Posting in the Eng-Tips forums is a member-only feature.
A contactor is an electrical device used for switching an electrical circuit on or off. Considered to be a special type of relay, contactors are used in applications with higher current carrying capacity, while relays are used for lower current applications. Download Now
This research report, based on a survey of 234 product development professionals, examines the current state of Internet of Things (IoT) adoption by product design teams, its perceived importance, and what features and capabilities teams consider important when making decision about adding IoT functionality to their products. Download Now
The term Industry 4.0 denotes a cluster of technologies thatâ€™s poised to
fundamentally reshape manufacturing and bring about a new industrial
revolution. These include 3D printing
(AM), the Industrial Internet of Things (IIoT), artificial intelligence (AI) and
mixed reality technologies, more commonly known as virtual reality (VR) and
augmented reality (AR). Download Now