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Pi Electric Bicycle with Semi-Automatic 8-Speed Transmission

TheFuture — Thu, 03 Jul 2008 07:00:32 +0000

The Pi electric bicycle uses a semi-automatic 8-speed transmission to downshift into a lower gear for climbing hills, then up shift for rapid acceleration to a maximum of 20 mph on flats and allows you to pedal normally because the motor automatically disengages when not in use. Powered by a 750-watt electric motor housed in the horizontal chain and motor assembly, the Pi electric bicycle is capable of three modes of operation: electric motor power, human power, or the human-electric hybrid power combination. The electric motor and rider utilize the same 8 speed semi-automatic transmission making rapid acceleration from a stop or lower gears available for steep inclines possible (but with slower acceleration.

The motor automatically disengages from the pedals when desired so as to preserve battery life. Construction begins with a 12’ foot straight piece of 3⁄8-gauge, aircraft aluminum 6061 alloy that is roll-formed and annealed for uniform wall thickness into a complete 6′ diameter circular tube with a 4″ exterior diameter (the NiMH batteries reside within the tube from the front fork to the seat), which is then bisected to make a 6′ long arc for the bicycle’s frame. The sturdy frame supports riders up to 300 lbs.

The top of the arc provides a 26″ stand over height, allowing you to place both feet on the ground. The padded ergonomic gel seat provides for comfortable, relaxed riding. It attaches to the frame via a gas strut assembly that raises and lowers like a pneumatic office chair, accommodating riders between 5-7′ tall in a semi-recumbent position for ideal pedaling or powered coasting. A dynamo in the front wheel’s hub provides power for auxiliary lighting.

The bicycle has a range of up to 30 miles at 20 mph before requiring a five-hour re-charge from its AC adapter. Precisely tuned hydraulic disc brakes provide sure stops, and the wheels are made of dual-walled aluminum alloy and stainless-steel spokes; the 26″ semi-slick tires are ideal for roads or paved trails and use Presta valves. The bicycle is wet-painted in Rossa Corsa red using the same PPG color specification as high performance sports cars and treated with a clear coat finish for a luster that will last.

Designer : Marcu Hayes

Capsule Fire Extinguisher with Oxygen Tank and Powder Capsules

TheFuture — Fri, 14 Mar 2008 07:51:12 +0000

Equipped with oxygen tank and powder capsules, this fire extinguisher called capsule comprises the crucial factors when it comes to life saving in fires. The oxygen tank is embedded in the body of fire extinguisher and also several fire-suppressed powder capsules. People who are trapped in fires are having difficulty to breath, the oxygen tank is a big help for them. The amount of oxygen available can be seen through a gauge, when the tank is running out of oxygen, user can charge the mini oxygen through valves which are located in both sides of the handle.

Powder capsule can be used by pulling down the cover from the extinguisher’s base and throw it towards the fire. It will explode when it reaches the fire, so user need to stay away from it. The elasticized body of the capsule enables it to absorb shock when it is thrown. Smart concept.

Designer : Woo Seok Park

Renovatio Concept by Confederate Motor Company

TheFuture — Mon, 20 Aug 2007 13:00:19 +0000

I’m a little bit confused with this motor design, where do I sit ? This renovation concept by Confederate Motor Company uses minimal machine, using the fewest pieces, moving parts and systems to accomplish its dynamic mission. The word “Renovation” itself means rebirth, which also represent the rebirth of their headquarters company after destroyed by Hurricane Katrina. The Driving concept was the creation of a conceptually flexible foundation to allow a place for growth and further iteration; a utilitarian modular flexible foundation.

Conceived by the leader of our conceptual design team, Mr. Ed Jacobs, the motorcycle is at once primitive, bohemian, and yet highly technical. Renovatio is un-compromised, light weight, possesses enormous torque, is capable of extreme performance, yet has maximum real world streetable active safety. It is graceful in motion, yet potentially brutal. It exudes inner beauty through absolute follow through of truth of concept. Renovatio has great proportions, holistic brand gestalt, is original, impactful, alluring and elegant

Specification :

Dimensions:
Weight: 340lbs.; Wheelbase 60″; Seat Height 30″; 27 degree rake.

Engine:
103 cubic inch Confederate Water cooled 90 degree utilitarian modular platform
150 HP normally aspirated – 190 HP optional supercharger

Transmission:
Confederate design; six speed, close ratio.

Primary:
Internal gear driven

Front End:
Girder-type aircraft aluminum and titanium multi-link with
shock centered on steering axis; Carbon fiber struts.

Swingarm:
Single sided aluminum cast piece.

Suspension:
Rear-Penske coil over shock with remote reservoir multi adjustable; Front-Penske coil in shock, multi adjustable.

Lighting:
Forward LED headlight and blinker system; integrated into girder.

Fuel Cell:
Confederate design, one piece composite fiber cell;
Fuel Capacity 4.5 gallons with integrated air box.

Gauge:
Single integrated tachometer and speedometer.

Wheels:
Blackstone structural carbon fiber.

Identification:
Engine & Neck contain ID numbers.

Preliminary Engine Specifications:
Type: V-twin

Displacement: 1686 cc (103 cu. in.)

V-angle: 90 degrees

Compression ratio: 11.0:1

Valve configuration: Over head valves, 2 per cylinder

Valve lifters: Hydraulic roller

Bore x stroke: 108 x 92mm (4.252 x 3.622 in.)

Fuel system: Sequential fuel injection

Fuel Type: Premium unleaded

Horsepower: 135 hp (SAE Certified)

Torque: 125 lbs-ft (SAE Certified)

Fuel shut off: 7800 rpm

Block: 356-T6 Sand cast aluminum

Cylinder bores: Liner-less Nicom coated parent aluminum

Cylinder head: 356-T6 Sand cast aluminum

Intake manifold: Carbon runner, dual throttle body

Exhaust manifold: 321 Stainless steel headers

Crankshaft: Billet 4340 steel

Camshaft: Billet 8620 VAR steel

Connecting rods: Forged Powder Metal Titanium

Pistons: Forged 4032 Aluminum

Valves: Forged titanium