2012
Transportation

Why should a car be so expensive? The average annual income in the US is around $47,000. The average price of a new car is around $30,000. This is a problem. This means that many people end up spending a good percentage of their income on a device they use only a fraction of their day. It is time to change this.

There have been good ideas proposed involving sharing of publicly available cars and mass-transit solutions - but these are not good enough. We are Americans and we like having our own stuff. We like defining our own lives and having maximum flexibility in what we do and when we do it. We also need space to do ...

Fossil fuels, in any form, are quite effective in terms of power output. However, they are non-renewable and are getting depleted at an alarming pace due to their usage as the primary source of energy. The world will eventually run out of oil and gas in the near future.

The principles of demand and supply dictate that due to their limited supply and ever-increasing demand, fossil fuels will suffer a gigantic rise in their cost very soon.
While Their high power output makes them our fist choice as a source of energy, fossil fuels contain carbon which leads to the formation of several types of pollutants that are detrimental to our environment. Furthermore, they are the primary source of ...

The crankshaft has been used for over 136 years without any fundamental change to continuously convert linear motion to rotary motion and vise versa. The crankshaft mechanical torque is an asymmetric sinusoidal motion that is acted on or by non-axial and non-tangential force vectors resulting in a work loss of greater than 50%. This inefficiency is recovered with a truly innovative constant velocity (CV) concept that eliminates the crankshaft. The CV concept is a linear piston pair that couples to a rotating power shaft at constant velocity, transfers control to a rotating cam path on the power shaft at constant velocity to reverse the linear motion, transfers the piston pair back to linear motion at constant velocity and repeats ...

As high-power batteries become available, the most significant problem to be overcome for electric vehicles is the disparate systems used to manage batteries (battery management systems, or BMS), charge batteries, traction motor controllers and power auxiliary systems.

The proposed design is comprised of a single part which, when combined with other nodes to establish a flexible and harmonious energy management system (EMS) network. While each node shares the same anatomy, their function can change as required, much like workers in a beehive.

Each cell in the battery pack has the device mounted to its terminal. Individually the device continuously monitors the batteries condition. The device is connected to a low-speed, high-current conductive matrix.

Each node is synchronized via a ...

The CW-RUNABOUT is my attempt at a VTOL PAV concept that would hopefully be cheap to produce and as easy to controll as posible while having as few components as possible.

Using a single engine to provide both thrust and directional control with an innovative double set blade system, coupled with a unique ducting system, the CW-RUNABOUT will hope fully prove to be a fun and easy way to travel.

The image in fig.1 shows how the double set blade system distributes the air passing through it to provide both lift (green arrows) and directional thrust (red arrows). Each blade set, fore and aft, is powered by a single engine (no particular type is set) that turns both blade ...

Based upon an arched decussate (shaped like an X) form from which the chassis is suspended, this is a motor vehicle in which all components are sprung members. This enables a flexible and extremely light-weight bed upon which to mount a propulsive system. As part of the design, passenger loading will never impart uneven stresses upon the vehicle. Furthermore, depending upon the power unit, the vehicle can be lifted by the end to facilitate parking. The proposed model employs either a ceramic replaceable power unit burning fossil fuel, or an electric or hybrid power supply. The advantage of the extreme lightness is such that a 100 cc motorcycle engine is adequate to drive it, even with two ...

Introduction
Today’s world is concerned about the depletion of natural resources and the impact of human activity on the environment. Making automotive transportation more efficient is one of the major goals of engineering research. Ideas in unconventional areas tend to be economically and technologically untested while internal combustion engines still hold significant unrealized potential.

Current limitations
Variable valve timing and lift solutions have been widely employed to gain efficiency. However, existing devices and methods have several limitations, including restricted ranges of adjustments of valve stroke and inability to deactivate valves in the process of engine operation within one revolution of the camshaft. These limitations negatively impact volumetric efficiency, energy conversion efficiency, specific fuel consumption, and exhaust toxicity. Existing mechanisms ...

A classic engine relies on a crankshaft and a rod to transmit the motion from the piston to main axis, with two main problems with energy loss: the piston motion approximating a sine, which is not optimal for energy transmission to the crankshaft, and the swinging motion of the rod.

My entry is an engine design that complements the crankshaft with a secondary shaft, to allow more complex piston motions for better tuning and fuel efficiency. The secondary crankshaft is driven by an internal gear, so the motion depends on the satellite (gear mounted on the shaft) size compared to the internal one, and the offset between the secondary crankshaft axis and the rod axis:

- Case 1: 50% ...

Electric cars are gaining popularity with claims of longer range, low operating costs, etc. Unfortunately the evolution of this technology is slow, as the materials used to build the electric cars are the same or similar materials used to construct a heavy gasoline powered vehicle.

The concept of sitting still in a moving vehicle has not changed in over 100 years.

The method of cooling or heating the vehicle to maintain personal comfort is as silly as trying to push electricity through wood. Air conditioning or air heating requires a significant amount of energy to cool or to heat the air inside the vehicle. Air is a temperature resistor while liquid is a temperature conductor. In Dubai, for example, ...

3 wheel, 300 pound personal 2 person transporter relying on 2 hubmotor traction wheels, electronic/pneumatic suspension to optimize handling and energy characteristics, computer controlled lighting system connected to a personal computer via USB connection. Vehicle may be controlled remotely via the personal computer controller in remote mode.

Electrilite also uses 6oo watt pedal generators and solar panels to extend reange indefinitely with a nominal 1200 watt cruise power.

Electrilite is designed to be fabricated and assembled in the average ...

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