US1417730A - Gas engine - Google Patents

Description

T. w; HAINLINE.

GAS ENGINE.

APPLICATION FILED MAY 11. 1920.

Patented May30,1922.

2 SHEETS-SHEET I.

T. W. HAINUNE.

GAS ENGINE.

APPLICATION FILED MAY 11, 1920.

. Patented m 30, 1922'.

2 SHEETS-SHEET 2.

3 T m w W UNITED STATES rATENT oerce.

THEODORE W. HAINLINE, 0F PORTLAND, OREGON, ASSIGNOR OF ONE-HALF TO ROBERT S. 'WITTMEIER,

6F DENVER, COLORADO.

GAS ENGINE.

Application filed May 11,

To all whom it may concern:

Be it hereby known that I, THEODORE W. HAINLINE, a citizen of the United States, and resident of Portland, in the countyof Multnomah and State of Oregon, have invented a new and useful Improvement in Gas Engines, ofwhich the following is a specification.

.My invention relates more particularly to the reciprocating type of gas engines.

The objects of my invention are mainly to eliminate the excessive high speed required by the usual types of two and four cycle engines; to provide a means for dissipating the heat resulting from the combustion of the gases; to render possible the use of a. heavier oil for fuel purposes, and to economize on space and weight in the design of the engine.

I attain these results in the manner described in the following specifications and illustrated in the accompanying drawings, in which:

Figure 1 isa side elevation of the engine of which Figure 2 is a sectional plan through the cylinder and valve portion along the line 2-2 1n Figure 1. Figure 3 is a diagrammatic View showing the eccentric settings. Figure 4 is a plan showing the means for operating the various valvesj Figure 5 is a diagrammatic view of'the ignition system.

Similar numbers of reference refer to the same or similar parts throughout the several views.

Referring in detail to the drawings, 1 have constructed my device upon a base 6 in whose bearings 7 is journaled the crank shaft 8 on which are secured the fly wheels 9 and the belt pulley 10. The usual form of crank 11 and counter weights 12 are also employed, together with a cross-head 13 and a connecting rod 14 as are now used in some types of steam engines.

For the purpose of this invention I have illustrated an air cooled cylinder 15 from which excess heat is radiated through the fins 16. The cylinder 15 is closed on the end facing the crank shaft by means of the cylinder head 17 through which a piston rod 18 passes and with which it forms a compression tight fit through the action of the packing 19 and the gland 20. The piston rod 18 is joinedito the connecting rod 14 by means of the cross-head pin 21. The opposite end of the cylinder 15 is closed by Specification of Letters Patent. Patented May 30, 1922.

1920. Serial No. 380,690.

the cylinder head 22. Each of the cylinder heads 17 and 22 carries a spark plug 23 joined by the wires 24 to the commutator brushes 25 which ride on the commutator 26 which is secured on the crank shaft 8. The 80 current passes from the commutator 26 through a master vibrator 2.7 and the battery 28 to the plugs 23.

Near each end of th cylinder 15 I have provided an exhaust port 29 both of which are controlled by the same slide valve 30 which is actuated by the eccentric 31 by means of the connecting rod 32. I have illustrated the exhaust as passing into the open air through the pipes 33.

On the opposite side of the cylinder15, and near each end of same, I have provided the intake ports 34 controlled in a similar" manner to the exhaust ports by means of the slide valve 35 which is actuated by the eccentric 36 through the rod 37. It will be noticed that both of-the exhaust ports and the intake ports are arranged to be actuated in pairs in the manner that when one intake port is closed, the other is open, and a 30 similar action is ports.

The piston 38 is mounted on the piston rod 18 and provided with piston rings 39 and a central groove 40 which is joined by the 35 hole 41 to the hollow portion 42 of the piston rod 18. This terminates in the cross-head pin 21 into which lubricant is forced from provided for the exhaust the lubricator 43 which is actuated by the arm 44 which engages the slot 45 in the connecting rod 14.

I will now describethe portion of my device which, in substance, constitutes an addition to a steam engine which is capable of converting it into a gas engine. This consists of an auxilaryhigh pressure cylinder 46 whose plunger 47 is attached to the rod 48 and is actuated by the eccentric 49 through the connecting rod 50 which transfers the motion from the eccentric 49 to the rod 51 and the arm 52 which is attached to the plunger rod 48 which serves to actuate a high pressure cylinder 46 at each intake port of the main cylinder 15. y

The eccentrics 31, 36 and 49 are so positioned onthe crank shaft that as the p ston 38 moves from the dotted line position shown in Figure 2 towardthe full line position shown in said figure, the valve 35 will be in position closing the inlet port 34 at the 1 "right hand end ofthe figure, and the charge compression piston 47 at the right hand end of the figure will move from the dotted line position to the full line position, compressing the charge which has been admitted pastthe valve 55. In the meantime the valve 30 re mains in a position uncovering the exhaust port 29 at the right hand end of the figure until the moment when the piston 38 has reached nearly the full line position shown in the said figure at which moment the valve 30 will be moved to closed position while the piston is completing its stroke and simultaneously with, and during and immediately following the movement of the said valve 30 to closed position the valve 35 will be momentarily opened to admitthe compressed charge into the scavenged end of the cylinden As regards the period of the opening of the intake valve 35, the port 34 remains uncovered until the moment when both the working and the charge compression pistons have reached the limit of their strokes, when the valve is immediately closed. As the clearance in the main cylinder 15 is more than that'of the high pressure cylinder 46 it will be seen that the confined gases expand in volume with a resulting reduction in temperature, which tends to dissipate the heat caused by the previous combustion. The proper brush 25 now comes in contact with the segment of the commutator 26 and causes an ignition of the gas, thereby sending the piston 38 to the opposite end of the cylinder 15 where a similar operation takes place.

In illustrating my device it will be observed'that l have carried the connecting rods 37 and 50 ,below and above the horizontal center line of the engine, but solely for the purpose of better illustrating the working of the various parts.

Additional cooling properties are also secured by the hollow piston construction and a perfect lubrication for the cylinder walls provided by applying the lubricant to the center of the piston from which it flows outward in both directions, thereby tending to keep the working faces free from any foreign matter or carbon deposits.

1 have not illustrated means'for lubricating the various working parts, such as the crank shaft, connecting rods, high pressure cylinder, etc. since any of thesemay be taken care of by the drip feed systems now in common use.

It will be observed in the operation of my device that I employ slide valves wherever a port is subjected to firing, as this tends to wipe away any carbon deposits which may be formed, and that in theposition where l have used the spring-operated valves that no combustion takes place and the valve is.

kept cool by the constant passing of cool gm the cylinder, the cylinder having an inlet and an exhaust ort at each end, firing means at each end of tiie cylinder, charge compress ing means operating tocompress and de liver a charge alternately to the opposite ends of the cylinderthrough the inlet ports, valves controlling the inlet and exhaust ports, and means operating to actuate the said valves in timed relation to the reciprocation of the piston and acting to maintain the exhaust port at either end of the cylinder open and the corresponding inlet port closed during the period of movement of the piston in the direction of the corresponding end of the cylinder and until it has reached approximately the'limit of its stroke, to then move the exhaust valve to closed position, and, simultaneously with and during and immediately following the movementof the exhaust valve to closed position, move the .inlet valve momentarily to open position.

2. In an internal combustion engine, a combustion cylinder, a piston working in the firing means at each end of the cylinder, charge compressing means operating to compress and deliver a charge alternately to the opposite ends of the cylinder through the inlet ports, valves controlling the inlet and exhaust ports, and means operating .to actuate the said valves in timed relation to the reciprocation of the piston in a manner to relatively gradually close the exhaust port at eitherend of the cylinder as the piston approaches the end of its stroke in the direction of the corresponding end of the cylinder and to momentarily open and then close the corresponding inlet port while the exhaust valve is completing its movement to closed position whereby to permit the incoming charge to pass across the cylinder from the inlet to the exhaust side by the time the piston has reached the limit of its stroke.

3. In an internal combustion engine, a combustion cylinder, a piston working in the cylinder, the cylinder having an inlet and an exhaust port at each end, firing means at timed relation to the reciprocation of the means operating to actuate the said valves in pistons, the actuating means for the exhaust valve operating to idle the valve in opening and closing, and actuating, means for the inlet valve operating to effect relatively uick opening and closing thereof and idling vt e valve in closed position, the actuating:

means being effective to maintain the exhaust port at either end of the cylinder open and the corresponding inlet port closed during the movement of the piston in the direction of the corresponding end of the cylinder and until it has reached approximately the limit of its stroke, to then move the exhaust valve to its closed position, and, simulf taneously with and during and immediately following movement of the exhaust valve to closed position, move the inlet valve momentarily to open position.

4. In an internal combustion engine, a combustion cylinder, a piston Working in the cylider, a cylinder having an inlet and an exhaust port at each end, firing means at each end of the cylinder, a charge compression "cylinder located exteriorly of and at each end of the combustion cylinder, the charge compression cylinders at their relatively remote ends being in communication with the combustion cylinder by way of the respective inlet ports, an intake manifold having communication with the relatively remote ends of the charge compression cylinders, check valves for controlling the supply to the charge compression cylinders, pistons working in the charge compression der, valves controlling the inlet and exhaust.

ports of the combustion cylinder, and means for actuating the said valves in timed relation to the reciprocation of the first mentioned piston.

THEODORE HAINLINE

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