Improvements in or relating to Gas and Oil Motors.
Year: 1897

page_text: Date of Application, 10th July, 1897-Accepted, 28th Aug., 1897
COMPLETE SPECIFICATION.
Improvements in or relating to Gas and Oil Motors.
I, CARL BRACKLOW, of 67 Flammweg, Elmshorn, in the Empire of Germany,
Machine Manufacturer, do hereby declare the nature of this invention and in what
manner the same is to be performed to be particularly described and ascertained
in and by the following statement: —
Tuis invention relates to an improvement in motors for gas or liquid fuels and
consists of a new construction of the working-piston, for the purpose of using the
same simultaneously as pump-piston for cooling air and for giving to the same
a better guiding than in the hitherto known constructions, and further of a new
arrangement of the explosion-cylinder, by which a better and more equal mixing
of the gas with the air is obtained, in order to avoid missing explosions.
In the annexed drawing
Fig. 1 shows a longitudinal section in elevation of a petroleum or benzine-motor
constructed according to this invention.
Fig. 2 is a plan view of Fig. 1 partially in section.
A is the explosion chamber surrounded by a cylindrical sleeve A1; a is the
vaporizer for the liquid fuel, for instance petroleum or benzine; b is the air
admission valve and c is the exhaust valve for the burned gases.
B is the hollow working piston which slides on the sleeve A¹ of the explosion
chamber provided with spring operated tightening rings i and with which a second
shorter cylinder B¹ is connected, which has its guiding in an outer cylinder D.
This second cylinder B¹ serves as pump piston, sucking cold air through the valve v
during the to and fro movement of piston B, in order to pass this air through
openings m into the sleeve A¹ of the explosion cylinder A from where it passes
through the tubes o (in the present case there are shown 4 of such tubes) to the
escape valve s; by means of this arrangement a special air pump for cooling air is
rendered unnecessary.
In consequence of the arrangement of the explosion cylinder in the working
cylinder, without surpassing the usual longitudinal dimension of the engine a
very long channel is obtained for the explosive mixture, in which the gases can
be well mixed with one another, because in consequence of the greater length the
gas column has only a proportionally small diameter.
By the working cylinder sliding on the explosion cylinder there is also obtained
the advantage, that the sliding faces can be kept well oiled without fearing that
the lubricating material will pass into and soil the explosion chamber; the gases
will by means of their pressure prevent the lubricating material from coming out.
It may be also mentioned that in case air is not to be used for cooling, one can
also use cooling water which enters through tubes a from where it passes through
the before mentioned tubes o into the sleeve A¹.
Having now particularly described and ascertained the nature of the invention
and in what manner the same is to be performed I declare that what I claim is:
An improved gas motor with tubular explosion chamber A which is surrounded

page_text: by a sleeve surrounding the cooling chamber on which sleeve the hollow cylindrical
working piston B slides, which piston may be connected with a short ring
cylinder B for the purpose of serving also as a pump piston for cooling air or
water.
1
1007
HERBERT HADDAN & Co.,
18 Buckingham Street, Strand, W.C., Agents to Applicant.