US1638852A - Cylinder for gasoline engines - Google Patents

Description

1,638,852 Aug- 1927' w. B. HILGER CYLINDER FOR GASOLINE mamas Filed March 31, 1924 4 Sheets-Sheet 1 Es 2/ /7 7 22 Z Z 7 Aug. 16, 1927.

W. B. HILGER ,CYLINDER FOR GASOLINE ENGINES Filed March 31. 1924 4 Sheets-Sheat 2 F76.4 2 2/ 7 o f 2 k j Z M 53 K 2 V 24 f7 .6; A; i t

' 1,638,852 1927- w. B. HILGER CYLINDER FOR GASOLINE ENGINES Filed March 31, 1924 4'Sheets-Sheet 3 Aug. 16, 1927.

v 1,638,852 I w. B. HILGER CYLINDER FOR GASOLINE ENGINES Filed March 51, 1924 4 Sheets-Sheet 4 7 2 v I Z 2 5 any 7 X q lllfllln: /Z T 221:: f

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Patented Aug. 16 1927.

UNITED STATES WILLIAM B. HILGEB,

or 3mm, IOWA.

CYLINDER ron easouxa mamas.

Application filed March 31, 1924.. Serial Io. 708,014.

This invention relates to improvements in cylinders for gasoline engines and the primary object is to provide sleeves to slidingly operate within the walls of the cylinders 5 relative to the position of the pistons and actuated by means of cams mounted upon the cam shaft located at the side of the cylinders. Another object is to provide sleeves of such design and construction as to per- 10 mit mounting the spark plugs in their heads.

A still further object is to fire the compressed gasoline after the piston rods have passed the dead center upon the down stroke, so as to save the power which is exerted upon the piston while the piston is passing over dead center and to minimize the friction created by the explosion u on the piston during the vertical position the piston rod and thus give the greatest amount of power obtainable from the least amount of combustible material. These and other objects will be apparent from the accompanying drawings and specification.

Inthe drawing Figure 1 is side elevation of an engine equipped with this improvemet showin the cam shaft, spring set valve stems and the spring set sleeve actuating rods;

Figure through the water jacket and staggered valves, a section being broken away to show the intake and exhaust ports of the sleeves; NFigure 3 is a vertical section of, cylinder 0. 1; NFigure 4 is a vertical section of cylinder 0. 3; x Figure 5 is a vertical section of cylinder No. 4.

Fig, 6 is a vertical section of cylinder N0. 2;

Figure Figure 8 mechanism;

Figure 9 is a detail of a cam that operates the sleeve actuating mechanism;

Figure is adetail of the staggered intake and exhaust valves;

Figures 11, 12, 13, 14, and 16 are diagrammatic viewsshowing the relative position of the sleeves and sleeve operating mechanisms with the pistons and the crank shaft.

In carrying out this improvement upon a gasoline englne, I provide sleeves 1 having intake and exhaust ports 2 and ears 3. The sleevesl are adapted to engage the walls of the cylinders 4. Threaded holes 5 are pro- 7 is a detail of a sleeve.

is a detail of a sleeve actuating 2 is a longitudinal vertical sectionv vided in the heads 6 oi the sleeves 1 to ermit the mounting of spark plugs 7. istons 8 slidingly en age the inner periphery of the sleeves 1. taggered intake valve 9 and exhaust valves 10 are located in the upper portion at the side of the cylinder block 11' and communicate with the inside of the sleeves 1 throu h valve chambers 12 and the intake an exhaust ports 2. A cam shaft 13-having valve stem cams 14 ri idly secured thereto, is journaled at "the side of the cylinder-block 11 below the staggered intake valves 9 and exhaust valves 10. Spring set valve stems 16 engage the valve stem cams 14 to operate the staggered intake valves 9 and exhaust-valves 10. Cams 15 are rigidly secured to the cam shaft 13. Rises 24 are incorporated in the cams 15 and so designed to time the vertical motion of the sleeves 1 in relation to the revolutions of the crank shaft 25. Brackets 17 are incorporated in the upper portion of the cylinder block 11 on the side of the staggered intake and exhaust valves 9 and 10. Adjustable spring set rods 18 having eyelets 19 incorporated in their upper portions and rollers 20-mounted in their lower ortions engage the cams 15 of the cam "shag 13. Primary links 21 engage the eyelets 19 vof the adjustable spring set rods 18 and the ears 3 of the sleeves 1. Secondary links 22 engage the primary links 21 and the brackets 17 of the cylinder block 11. An insulated copper rod 23 is mounted upo the top of the cylinder block 11 opposite he sta gered intake and exhaust valves 9 and 10 %or providing the spark plugs 7 with electricity for ignition purposes.

In operation, the sleeves 1 are actuated by the cams 15 throughthe medium of the adjustable spring set rods 18 and the primary links 21. The relative positions of the sleeves 1 with the pistons 8 are as follows: Upon the intake of gasoline into the sleeves 1, the said sleeves 1 are at the top of the cylinders 4 and remain there unt l the pistons 8 have reached the'top of the compression stroke, whereupon the sleeves 1 begin to move downward with the pistons 8 at a slightly faster rate and gaina trifle on the pistons 8, thereby increasing the compression of the compressed gasoline until the spark plugs 7 mounted in the heads 6 of the sleeves 1 come in contact with the insulated copper rod 23 to ignite the compressed gasoline At the beginning of the exhaust stroke the sleeves 1 raise a trifle, thereby completely opening the valve chamhere 12 of the valves 10 to permit the. exhaust gases to escape, and remain in that position until the pistons 8 are within approximately one-half of an inch of the sleeve heads, so as to force practically all of the exhaust gases out of the sleeves whereupon the saidsleeves 1 raise to the top of the cylinders 4 to permit the intake of gasoline through the valves'9 upon the downward stroke of the said pistons 8 as illustrated in Figures 11, 12, 13, 14, 15 and 16.

While I have herein described a certain specific method of constructing and assembling the elements of my invention, it is understood same may be varied in minor details, not departing from the spirit of my invention as defined in the appended claims.

I claim:

1. In a device of the kind described embodying in conjunction with the cylinder block of a combustion engine, sleeves engaging the inner periphery of the cylinders of said block, said sleeves being provided with peripheral apertures near their heads adapted to communicate with staggered intake and exhaust valve chambers; and a cam shaft and cam means for reciprocating said sleeves.

2. In a device of the kind described, a

sleeve formed with a head engaging the inner periphery of the cylinders of an internal combustion engine, said sleeve being provided with peripheral apertures for communcatingv with the intake and exhaust chambers of said engine; and a cam shaft and cam means operated by said engine for depressing said sleeve at the time of compression for holding compression to enable delaying the firing of the compressed combustible material until the crankshaft has passed dead center.

3. In a device of the kind described, a movable cylinder sleeve formed with a head adapted for internal engagement by the piston, said sleeve being formed with lateral peripheral apertures adapted to communicate with staggered intake and exhaust valves; a cam shaft and cam means for depressing said sleeve upon the compression stroke of the piston and holding said com-' pression to facilitate retarding the igniting of the compressed combustible materials until the crankshaft has passed dead center, and then raising said sleeve in the proper time for communication with the staggered Valves thru the peripheral apertures of said sleeve.

In testimony whereof I affix my signature.

WILLIAM B. HILGER.

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