Improvements in the Means of Heating the Charge in Gas and like Engines.
Year: 1892

page_text: COMPLETE SPECIFICATION.
Improvements in the Means of Heating the Charge in Gas and like
Engines.
A communication to me from GUSTAVE PETIT and ELISÉE BLANC, both of
Voiron, in the Republic of France, Engineers.
I, EDMUND EDWARDS, of the firm of Edwards and Co., Patent Agents and
Engineers, of 35 Southampton Buildings, Chancery Lane, in the County of
Middlesex, do hereby declare the nature of this invention and in what manner the
same is to be perforined to be particularly described and ascertained in and by
the following statement and accompanying drawing, that is to say :-
This invention relates to improvements in apparatus for heating uniformly and to
a sufficient degree, a mixture of air and gas or inflammable vapour, in order to form
a readily explosive mixture in gas engines or other apparatus of the like kind in
which such explosive mixture is employed. The accompanying drawing is in
illustration of the invention,
Fig. 1 being a vertical section through the cylinder of an engine,
Fig. 2 a horizontal section through the same, and
Fig. 3 an end view partly in section of the inner chamber and casing.
Supposing the apparatus to be applied to an ordinary gas engine having a
piston B working in a cylinder M, the outer end of which forms a combustion
chamber D, in such chamber D is arranged a smaller chamber C of cast iron or
other suitable material provided with a number of partitions 1, 2, 3 &c. a, b, c, d, &c.
(the number and size of which may be varied as found desirable,) round which the
explosive mixture circulates between the pipe by which it is introduced, and
through the pipe or passage H, the valve K by which it is admitted to the
combustion chamber. The inner chamber C is made to project for a considerable
distance behind the combustion chamber and is surrounded by another chamber or
casing E through which the exploded mixture is made to pass and circulate after
having actuated the piston, an exhaust valve L operated in the usual way being
arranged between the combustion chamber and the chamber last described.
By the novel arrangement described the explosive mixture of gas or carburetted
air before entering the combustion chamber D and whilst passing round the several
partitions in the inner chamber C, is highly heated by the burning mixture round
that part of the chamber C which enters the combustion chamber, as well as by the
passage of the burned mixture which surrounds the end of the inner chamber which
projects outside the combustion chamber, as such burned mixture passes to the
exhaust pipe, and in this way great efficiency and economy are attained.
The improved apparatus described may be of any suitable dimensions, shape, and
materials.
Having now particularly described and ascertained the nature of the said inven-
tion and in what manner the same is to be performed, 1 declare that what I
claim is :-
:-
1. The application to engines of all kinds working by the explosion of a mixture
of gas or inflammable vapour and air, of the interior and exterior heating
chamber C substantially as described and shewn.
2. The method of exposing the chamber containing the explosive mixture to the
heat caused by the explosion, substantially as described and shewn.
EDWARDS & Co.,
35, Southampton Buildings, London, Agents for the Applicant.