Improvements in and relating to Hydrocarbon Engines.
Year: 1899

page_text: Date of Application, 4th Aug., 1899
Complain Onnnifination Latt And Mov 1000
1000
PROVISIONAL SPECIFICATION.
Improvements in and relating to Hydrocarbon Engines.
I, HUGO WEGELIN, of Oberhausen, near Augsburg, in the Empire of Germany,
Engineer, do hereby declare the nature of this invention to be as follows:-
This invention relates to hydro-carbon engines and has for its object to pro-
vide simple and effective means for permitting of the partial discharge of gas
and air in the compression stroke when starting, or at any other time when it
is required to reduce or regulate the power of the motor by such means.
The invention consists in providing a hand relief valve cam surface for con-
tact with the exhaust valve operating lever, which surface is tapered so that
upon movement of the sleeve by which it is carried into any particular posi-
tion the exhaust valve operating lever may be caused to be open in various
degrees or fully on the compression stroke, or be entirely closed, so that thereby
the gas and air mixture may be in a measure discharged from the cylinder on
the compression stroke or the whole charge of gas and air compressed as deter-
mined by the position of the sleeve.
In carrying the invention into effect a sleeve is provided having formed there-
upon a cam part of relatively great width for the depression of the valve operat-
ing lever on the exhaust stroke, the lever being so disposed in relation to the
sleeve that in no matter what position of the sleeve the lever shall be in contact
with the exhaust cam surface. Upon the same sleeve a relief cam surface is
provided in a position immediately opposite to the exhaust cam surface, the
relief cam surface being provided tapered so that in one position upon the sleeve
the exhaust valve operating lever shall only be uplifted on the exhaust stroke,
while in other positions of the sleeve the exhaust valve operating lever
shall be in addition uplifted on the compression stroke, and in the furthest
position of the sleeve the exhaust valve operating lever may be uplifted so as
to completely open the exhaust valve on the compression stroke.
The sleeve is fitted to a shaft mounted in the frame of the engine and rotated
from the crank shaft by a two to one gear. The sleeve may be secured to the
shaft by means of a key fitted within a keyway so as to be capable of lateral
movement upon the shaft while yet rotating with the shaft no matter what its
particular longitudinal position.
The adjustment of the sleeve may be effected by suitable means such as by
hand lever having a forked extremity engaging within a groove upon the sleeve.
In the use of the invention springs are dispensed with and the sleeve is
capable of being adjusted and maintained in the position required.
1
1
1 1800
MARKS & CLERK,
18, Southampton Buildings, London, W.C.,
13, Temple Street, Birmingham, and 25, Cross Street, Manchester,
canta

page_text: ing any desired amount of opening of the exhaust valve during the compression
stroke of the engine and thereby regulating the discharge of combustible mix-
ture, before ignition, to the required degree in starting the engine. If desired
the device might also be employed to regulate the power developed by the engine
the movement of the sleeve being effected automatically by means of the
governor.
Having now particularly described and ascertained the nature of my said
invention and in what manner the same is to be performed, I declare that what
I claim is--
1. An adjustable device for the valve gear of hydro-carbon engines consist-
ing of a sleeve or its equivalent fitted to the gear shaft and provided with cam
surfaces constructed and operating substantially as described, and illustrated
in the accompanying drawings.
2. In a device such as claimed in Claim 1, the construction of a valve operating
cam G substantially as for the purpose described, and illustrated with reference
to the accompanying drawings."
Dated this 2nd day of May 1900.
MARKS & CLERK,
18, Southampton Buildings, London, W.C.,
Agents.