FUEL CELL CHARGER PROTOTYPE
This 1-watt fuel
cell utilizes variable exposed plate geometry to control power
output for charging personal electronic devices.
University of British Columbia, Clean Energy Research Centre
- Developed a system of
seals between the stack of plates to facilitate sealing in
conjunction with variable geometry
- Optimized effective
plate area to minimize overall size of the unit
- Designed using
FUEL PUMP for TRUCK HEATER
diesel-fired, microprocessor-controlled truck heaters are used to
heat the engine and cab of highway trucks or busses. The
competitor’s product has both supply and return hoses for the fuel,
requiring two connections into the vehicle’s fuel tank.
- Developed a method of automatically
purging air out of the fuel system, eliminating the need for a
fuel return line. The system met the requirements and surpassed
all performance expectations. It gave Teleflex a decided
advantage over the competition.
AIR COMPRESSOR for US ARMY FIELD COOK STOVES
Teleflex Canada Ltd.
Teleflex developed new cook stoves for the US Army to replace
the aging units previously in use. The new stoves were developed
to meet their single fuel mandate. The stoves burn jet fuel,
which is also used in the Army’s tanks, aircraft and trucks. The
burner units fit various appliances, for grilling, baking, etc.,
and are automated with such features as push button start, stop,
- Developed a small modular air compressor
to be used in the Army stove and with some different internals,
in the company’s line of truck heaters. The compressor utilizes
some die cast and injection molded parts.
- The compressor is 10% more efficient
than the previous design, a key feature in a product where low
power consumption is a major selling feature. It is also 4
decibels quieter than its predecessor.
National Research Council
computer workstation was developed that would allow a quadriplegic
to work in an office. File folders are stored in slots at the side
and back of the desk where a robot can access them. The robot
removes a folder from one of the slots and places it on an easel in
front of the disabled office worker. Using voice commands, the
documents can be retyped, printed, stamped and filed for mailing
Designed manufactured and tested the mechanical parts of the system:
- Custom-designed workstation with track
- Easel that opens file folders and
mechanical fingers that hold them in place
- Suction-operated page turning device
- Robot-friendly file storage racks
AIR SYSTEM for FUEL CELL BUS
Ballard Power Systems Inc.
These “clean air” buses for the cities of Vancouver and Chicago
are powered by fuel cells. The fuel cell engine consumes large
amounts of air which is supplied by a sixty horsepower
supercharger and a turbocharger.
- Designed the arrangement of the air
system to be shoehorned into a tight space between the fuel
cells and other engine components
- Modular design so the various parts
can be serviced easily, or removed as a unit for major repairs
ELECTROLYTE MIXING SYSTEM
Ballard Batteries Inc.
Ballard Batteries developed high energy lithium, sulfur-dioxide
batteries and required a mixing system for the electrolyte.
- Designed an apparatus to inject lithium
bromide powder while excluding air and maintaining an inert
atmosphere within the system
- Reduced production time for batteries by
two technician-hours per day
- The cost to design, build and install the
apparatus was 75% less than the alternate method
PNEUMATIC CONTROL SYSTEM for GRAPPLE YARDER
RSI Research Ltd.
Hundred-ton grapple yarders are used to haul felled trees out of
a logged area to where they can be loaded onto logging trucks.
Older machines required a high skill level to operate; having
numerous levers and foot pedals to control the various cables,
open and close the grapple as well as swing and travel. RSI
developed a single joystick to control all functions except
- Designed a proportional pneumatic system
to control clutches and brakes for the cable winches.
- System was designed to override the
older, manual valves but could be bypassed to operate the
machine manually if required.
Copyright © 2007-2012 H. Dasken Mechanical and
Technical Innovations. All rights reserved.
Photo credits: Globe photo courtesy of D. Jensen & Associates Ltd; other
photos by Hugh Dasken.