Slam Valve Motor, supplying
efficient steam engines for homeowners and professional solar installers
torque car engine on earth. Brought to you by the
reincarnation of Abner Dobie
Plug hybrid vehicles
hybrid vehicle is a vehicle with two different types of power plant
working together to give performance which better than either power
system could provide individually. The hybrids available
are gasoline engines working in parallel with an electric
motor/generator/battery system. The smaller gasoline engine
better efficiency, the electric system provides additional
acceleration to simulate the performance of a larger engine.
Most of the hybrids available today feature regenerative
Regenerative braking uses the generator to store energy in
battery when decelerating. This is energy which would
have been wasted in the brakes. Use of regenerative braking
reduces the energy needs of the vehicle and improves efficiency in
situations where braking is used often such as city driving.
hybrids can be modified to allow the battery pack to be plugged in to
charge as opposed to only charging from the gasoline engine.
is called a 'plug hybrid', and it allows the user to achieve very low
zero fuel consumption for short trips while still allowing long trips
at normal fuel consumption.
Steam powered vehicles are not a
true hybrid, they just do what a hybrid does. In the steam
powered vehicle, there is only one power plant to drive the vehicle.
This power plant has four modes of operation. The
a low torque high efficiency mode. The second is a moderate
torque moderate efficiency mode. The third is a very high
low efficiency mode. The fourth is a negative torque mode
for regenerative braking. Modes two and three are enabled by
porting the motor, see
the page on ported motors. Mode 4 is
a special feature of the slam valve head which will add some complexity
and therefore cost to the head. The accelerator has control
authority over the vehicle in modes 1,2, and 4. In the
torque mode (3) the accelerator will not affect the torque since the
motor is maxed out. Backing off on the accelerator from mode
causes the motor to drop to mode 2 then 1, which allows control over
powered vehicles can run from any source of heat. One popular
source of heat is to combust gasoline and air. Gasoline is
available everywhere and if a catalytic combustor is used the vehicle
will produce very low nitrous oxides which are a key pollutant.
Gasoline fired boilers provide an option for very long range.
Another source of heat is a thermal battery. A
battery stores heat. The battery is charged by plugging in a
heating element within the battery while the vehicle is parked.
The energy density of the thermal battery makes a range on
electricity of up to 100 miles practical. The current thermal
battery design stores 250 usable watt hours per kilogram and uses no
exotic, toxic, or expensive materials. Lithium ion batteries
currently store around 120 watt hours per kilogram depending on which
type, and are filled with toxic and dangerous materials.
paralleling the two sources of heat, we achieve the effect of
plug hybrid vehicle. The vehicle can run entirely on
for short trips. The vehicle can run on a mix of electricity
gasoline for long trips. The vehicle can feature regenerative
braking to improve efficiency in city driving. It is going to
create some language issues since its single power plant is not truly a
hybrid, and its one cell battery is not truly a battery.
we have to use words that we know.
The conversion from a
gasoline powered vehicle to steam requires some labor but is
straightforward. For ported motors the engine must usually be
pulled from the car. The cylinder block is removed and
re machined, then reinstalled. The gasoline head with its
and manifolds is discarded. Much of the equipment under the
may be discarded. A slam valve head machined for this
engine is installed on top of the cylinder block. A gasoline
fired boiler is installed on top of the engine. The engine is
insulated thermally. Waste steam is plumbed to the existing
radiator, supplemental radiators may be added to improve efficiency.
The throttle cable is routed to the slam valve head(s).
the center to rear of the vehicle as low as possible while being
isolated from the passenger compartment, a thermal battery is mounted
if desired. An insulated heat pipe leads energy from the
to the slam valve head. Water pump, vacuum pump, water and
are mounted under the hood.
applies to ported motors as well at low torque
feature extremely high peak torque
This is the power
to stay below to get optimal
This gasoline powered generator was converted to a ported