US1274161A - Cylinder for internal-combustion engines. - Google Patents

Description

H. A. HALL.

CYLINDER FOR tNTERNAL COMBUSHON ENGINES.

APPLICAUDN HLED FEB. 9. 19x8.

1 I 337 Patented July 30, 1918.

F/gurv 4 6 A F/gure 1 Figure 3 IN VE N TOR IIAR OLDA-H A LL BY v ATTORNE).

, proportions,

UNITED STATES OFFICE.

HAROLD A. HALL, 01 SAN JOSE, CALIFORNIA. CYLINDER FOB INTERNAL'COMBUS'IION ENGINES.

To all whom it may concern;

Be it known that I, HAROLD A. HALL, a citizen of the United States, residing at San Jose, in the county of Santa Clara and State of California, have invented a new and useful Improvement in Cylinders for Internal-Combustion Engines, of which the following is a specification.

My invention relates to a cylinder for internal combustion engines, and the objects of my invention are:

First, to provide wcylinder for internal combustion engines that -will have four valve ports, two of which are intake valve ports and two are exhaust valve ports; and one in which the valves and valve guides are laced in thehead of the cylinder, and one in which the valves operate parallel with the axis of the cylinder and not at an angle thereto or in additional valve chambers a is commonly the ractice.

Second, to provide a cylinder for internal combustion engines that will have positive cooling water circulation in all parts of the cooling water compartments, and one in which the'water compartments are divided into a plurality of separate water channels.

Third, to provide a cylinder for internal combustion engines that will have no anlar explosion chamber recesses, and one m which the ower loss derived from the explosion will e less than in cylinders now in neral use for this class of en 'nes.

ourth, to provide a cylinder or internal combustion engines that is more readily machined and one in which the cost of manufacture is reduced as compared to cylinders of this tye now in use. 0

A furt er object, of my invention is to generally im rove this class of cylinders for internalcom ustion en es so as to increase their usefulness, dura ility, and ,efiiciency.

Further objects and advantages will appear inthe following description lt being understood that varlous changes in form,

and minor details .of construction may be the appended claims.

For a full understanding of thelnventlon and the merits thereof, reference is to be had to the following description and accompartrlying drawings, in which:

ment in cylinders for internal combustion Specification Letters ratcnt. Application filed February 9, 1918. Serial Ila-16,324.

resorted to within the scope of Lie a plan view of my improve-' Patented July '30, 1918.

ylinder 'to in the followin description and indicated in all the views 0 the drawings by the same reference numbers. V

M improvement in cylinders for internal com ustion engines, forming the subject matter of the present invention comprises a body ortion 1 made of cast'iron or other suitab e metal consisting of a cylinder 2, water coolin compartments 3, water jacket 3 and cylin er head 3".

' At the .upper end of cylinder 2 are the valve seats 4,'valve ports 4, valves 5, and ,valve stems 5". These. valves operate in valve guides 5".

Valves 5 are for the purpose of mechanicall controlling the intake and exhaust of exp osive charges and burnt gases respectively, in and out of cylinder 2 by means of inlet port 6 and exhaust 'port 7, said valves being operated by any suitable mechanism not shown.

Near the upper end of cylinder 2 is shown a plurality of openings 8 for the purpose of attaching any. suitable ignition system, preferably. what is commonly known" as the outer walls thereof, is the circular flange 9 adapted to hold the body portion 1 in place on any. suitable crank case, crank case not shown.

Atthe lower end of coolin water coinartments 3 is shown a plum it of water inlets 10 adapted to be connects to a suitable systm of pump or thermo-siphon sys- "tem of cooling water circulation not shown.

'At the'top of the body portion 1 in the cylinder head 3 is shown a plurality of cooling ateroutlets 11, one of said outlets being, placed 'in the center of the cylinder head 3 and between the four valve uides 3 into a plurality of water circulating chambers is the web 12 which is shown in longitudinal section at 12 in Fig. 2, This web is for the purpose of causing the circulation of the cooling water to be more equal and direct to all parts of the water compartments.

The operation of my improved cylinder is as follows:

Valves 5 bein mechanically controlled, regulate the intaEe of explosive charges and exhaust of burnt gas at predetermined periods through the plurality of valve ports 4*, thereby obtaining a quicker and more efficient change of explosive charges. Cooling water enters the cooling water-compartments 3 through a plurality of inlet ports 10, being kept in proper channels by means of web 12, and is forced up to and around exhaust port 7 and inlet port 6 and valve guides 5 as shown by the arrows. The cooling water is discharged from the compartments 3 through a plurality of outlets 11. This arrangement will cool the cylinder and cylinder head more etliciently than the methods now in use.

Having thus described my invention, what I claim as new and desire to secure by Letbers Patent is:

1. In an improvement in cylinders for internal combustion engines of the class described comprising a cylinder, a plurality ofcoolin water compartments adjacent the walls and ends of said cylinder, said compartments being intercommunicatin a plurality of openings at the lower en of said compartments, adapted to admit water to said compartments, a plurality of-cooling @ports, an exhaust plurality of the va ve ports,

water outlets at the top of the compartments, a centrally located cooling water outlet at the top of the cylinder head, a web or partition, adapted to divide the water compartments into separate water circulating channels, substantially as shown and described.

2. In an improvement in cylinders for internal combustion engines of the class described, the combination of a body portion made of cast iron or other suitable metal, a cylinder, a plurality of cooling water compartments adjacent said cylinder, a water jacket, a cylinder head, a plurality of valve seats in the cylinder head, a plurality of valve ports connecting with said valve seats, valves adapted to engage said valve seals, valve stems attached to the valves, valve guides centrally positioned over each valve seat their longitudinal axis being parallel with the axis of the cylinder, an inlet port connection with a plurality of the valve ort connecting with a a plurality of threaded openings near the upper end of the cylinder adapted to receive spark plugs therein, an outwardly extending circular flange at the lower end of the cylinder, a plurality of cooling water inlets at the lower endof the cooling water compartments, a

plurality of cooling water outlets at the top of the cooling water compartments, a water outlet centrally positioned between the valve guides, a web or partition through the cooling water compartments dividing the compartments into so arate water circulation channels, substantially as shown and described.

In testimony whereof I afiix my signature in the presence of two witnesses.

HAROLD A. HALL. Witnesses:

O. M.- VROOMAN, J. G. MCMILLAN.

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