The frequency will be the greater t

The frequency will be the greater the stronger the suction, and may,
under certain conditions, reach hundreds and even thousands per
second. It scarcely need be stated that instead of one, several explosion
chambers may be used for cooling purposes and also to increase the
number of active pulses and the output of the machine. Apparatus as
illustrated in Fig. 4 presents the advantages of extreme simplicity,
cheapness and reliability, there being no compressor, buckets or
troublesome valve mechanism. It also permits, with the addition of certain
well known accessories, the use of any kind of fuel and thus meets the
pressing necessity of a self- contained, powerful, light and compact
internal combustion motor for general work. When the attainment of the
highest efficiency is the chief object, as in machines of large size, the
explosive constituents will be supplied under high pressure and provision
made for maintaining a vacuum at the exhaust. Such arrangements are quite familiar and lend themselves
so easily to this improvement that an enlargement on this subject is deemed unnecessary...
The high efficiency of the device, irrespective of
the character of the pulses, is due to two
causes: first, rapid reversal of direction of flow
and, second, great relative velocity of the
colliding fluid columns. As will be readily seen
each bucket causes a deviation through an
angle of 180 degrees, and another change of 180 degrees occurs in each of the spaces between two
adjacent buckets.
That is to say, from the time the fluid enters or leaves one of the recesses to its passage into, or exit from,
the one following a complete cycle, or deflection through 360 degrees, is effected. Observe now that the
velocity is but slightly reduced in the reversal so that the incoming and deflected fluid columns meet with a
relative speed, twice that of the flow, and the energy of their impact is four times greater than with a
deflection of only 901, as might be obtained with pockets such as have been employed in asymmetrical
conduits for various purposes. The fact is, however, that in these such deflection is not secured. the pockets
remaining filled with comparatively quiescent fluid and the latter following a winding path of least resistance
between the obstacles interposed. In such conduits the action cannot be characterized as "valvular" because
some of the fluid can pass almost unimpeded in a direction opposite to the normal flow. In my construction,
as above indicated, the resistance in the reverse may be 200 times that in the normal direction. Owing to this
a comparatively very small number of buckets or elements is required for checking the fluid.
A NEW ADVANCE IN TESLA TURBINE THEORY
Observant students of the disk turbine design might have wondered why some of Tesla's engines do not
appear to use a labyrinth seal between the end disks and the corresponding engine casing end plates. After
all, the patent drawings clearly show these seals and the accompanying text describes them at length. At the
same time, photographs of the dual 200 H.P. turbine installed at the Edison Waterside plant in New York
reveal an absence of this feature.
http://www.frank.germano.com/teslaturbine.htm (3 of 15)2004/11/22 09:47:13 AM
Tesla's Turbine: The Tesla, Bladeless Boundary Disk Turbine
It is believed the answer lies in the design of the engine's inlet nozzle. (click on image - left
- for larger view) It has been proposed that the slot shaped nozzle might have been
constructed in such a manner that the propelling gas was never allowed to enter directly
into the two interdiscular spaces nearest to the ends of the rotor.
In other words, it is believed the nozzle slot was narrower than the overall width of the rotor, by slightly more
than two spaces. It might be said that the total number of disks was greater by two than the number of active
disks. For example, a turbine with 25 disks, including the thicker end disks, might be described as having 23
active disks. This would allow any of the propelling gas which did get past the outermost active disks to pass
through the two outermost interdiscular spaces rather than between the end disks and the engine's end
plates.
Tesla's two variations of inlet nozzles
In FIG #4, Tesla used a variable inlet nozzle #12, and
controlled the amount of gas entering by a movable
"block" - #13.
Note that also, in FIG #4, the inlet and exhaust port size
was increased, to allow for more power, on demand.
Tesla, in FIG #5 used a diverging inlet nozzle -
#15, controlled by a "butterfly" valve, #16 .
This design was to be incorporated into Tesla's
''flying machine'', with two 10'' turbines, rated at
400 HP.
REF: Tesla Patent # 1,655,114 of 1928.
From the "New York Herald Tribune", Oct. 15th 1911
Tesla's New Monarch of Machines