'Oil Engines' Excerpted from Gas and Oil Engines
(Page 2 of 2)
The characteristic features of the engine may be summarized as
follows:
RELATED CONTENT
American Gasoline Engines...
Dedicated to all Trainmen, particularly from the Age of Steam....
Excerpted from Gas and Oil Engines...
Standard Pump and Engine, 2 HP, Serial Number 4408....
1. It dispenses with a heating lamp or other similar gear; 2.
Only two or three minutes are required for the starting of the
engine, owing to certain features in the design of the vaporizer:
(a) the limited admission of air; (b) its inclusion in the
combustion chamber; (c) the use of non-conducting coverings; and
(d) the use of the very hot gases for heating it; 3. The vaporizer
is not cooled during the suction stroke; or when explosions are
missed for the purpose of economically regulating the speed.
Crossley Engine
This engine is the same as that already described in the section
devoted to gas engines, with the addition of a special type of
vaporizer, which enables a combustible mixture of air and oil
vapour to be used instead of coal gas. The vaporizer consists of a
chamber divided by vertical walls into four canals, through which
the flame from the lamp passes upwards to the exit chimney at the
top, while a single-acting pump driven by a lever forces a stream
of air through a hot spiral passage encircling the lamp chimney.
After its passage through the spiral the heated air comes into
contact with the oil, a portion of which is entrained and carried
over. Instead of the wick customarily used in the heating lamps of
other engines the system of feeding the oil by means of a small
pump has been adopted, and after the engine is well started the
lamp is not required, as the heat of the explosions maintains the
temperature of the vaporizer. Various modifications and
improvements of this engine have been made since its first
appearance, the principal being the reduction of the time required
for the preliminary heating of the vaporizer when starting the
engine, and the simplification of the valve mechanism. Fig. 384
illustrates a moderate-power type of Crossley oil engine in which
any grade of refined or crude petroleum may be readily burned, and
other examples are given in Figs. 385 and 386.
Engines of very similar construction are also manufactured by
Messrs, Crossley for burning petrol or benzene, as in Fig. 387,
which shows an entirely self-contained portable engine of 3?
B.HP.
Page:
<< Previous 1 | 2 |