US1712861A - Internal-combustion engine - Google Patents

Description

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INTERNAL COMBUS TI ON ENGINE Filed Aug. 10, 1920 5 Sheets-Sheet l May 14, 1929. H. WEISS 1,712,861

INTERNAL COMBUSTION- ENGINE Filed Aug. 10, 1920 5 Sheets-Sheet 2 )5 l6 10 w 2 w 2 l f I Z) E i a 4 m l 1 7 i: i 6 a .@1

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INTERNAL COMBUSTION ENGINE Filed Aug 10, 1920 5 Sheets-Sheet 3 Patented May 14, 1929.

UNITED *STATES HOWARD WEISS, OF NORTHAMPTON, PENNSYLVANIA.

INTERNAL-COMBUSTION ENGINE.

Application filed August 10, 1920.

My invention relates to internal combustion engines of the sleeve valve type.

The invention consists in a new and improved type of sleeve and improved means for operating the sleeve, whereby the sleeve will regulate the inlet and exhaust and at the same time may be readily removed for cleaning or replacement.

Other features of my invention will be more fully brought out in the following de scription.

Referring to the accompanying drawings in which I have illustrated my invention,-

Fig. 1 is a side elevation of an engine, partly in section.

Fig. 2 is a vertical section. atQ, Fig. 1.

Fig. 3 is an elevation of the complete sleeve,

Fig. l is a section through the sleeve showing a bracket for the sleeve actuating mocha nisni.

Fig. 5 is a perspective view of one of the sections of the sleeve.

Fig. 6 is an enlarged sectional view of a detail of one of the combined oiling and cooling devices.

Fig. 7 is an enlarged section on line 7-7 Fig. 6.

The engine is provided with a crank case 0. upon which is bolted a cylinder block b containing the four cylinders it provided with suitable water jackets 14. A crank shaft carrying a fly wheel d is mounted in suitable bearings e in the crank case. Pistons are connected with the crank shaft by rods 9. l/Vithin the cylinders 7a are placed the valve sleeves 73, extending into the valve chambers 15, and in which the pistons reciprocate, made in two sections, the upper section hav ing the L-shaped ports 7', the lower section being provided with oil grooves 70 and oil holes Z. The sections are morticed together as at r, allowing a perfectly flush surface at the joint both inside and out. An annular oil ring at fits in the lower part of the sleeve and has a cutaway portion on at one side in alignment with a hole a in the lower part of the sleeve. The bracket 0 [its on the outside of the sleeve and is provided with a tongue 39 projecting through hole a and filling the cut-away portion of the oil ring. Bolts 9 pass through the bracket and sleeve and en gage the oil ring.

The valve chambers 15 are provided with intake ports 8 and exhaust ports 25', with which the ports in the sleeves are adapted to regis- Serial No. ,102,684.

ter in the operation of the engine. The in take and exhaust manifolds a and '0 are bolted to the cylinder block adjacent to the respective ports. The bolts in the upper line are made with a central passage w which connects with passages through the cylinder block and provided at their outer ends with radial ports m. A valve 12 having ports .2, adapted to register with ports a, is adapted to lit into the ends of the bolts to and are provided with the lovers 9. connected by means of a rod 3 leading to any convenient point, by which the valves may be manipnlated. By this means, ports 00 can be adjusted for the passage of air to and from the valve space 15. Oil also may be supplied for lubricating the sleeve through the hollow bolts.

The bracket 0 is provided with ears 4; to which blocks are trunnioned. Shafts 6 carried by bearings 7 are provided with cranks 8 and 9. The crank pins of cranks 8 turn in blocks 5, while the crank pins of cranks 9 are connected by side rod 11. Rod 11 is connected to the timing gears 12, of the engine, by bevel gears 13.

In operation, the shafts 6 will be rotated by the rod 11 through the cranks 9, causing the cranks 8 to rotate. The rotation of cranks 8 causes the sleeves z' to be alternately rotated and raised and rotated and lowered, in a spiral motion, causing the ports y to register with the intake port on the intake stroke of the piston and with the exhaust port on the exhaust stroke, the ports being so arranged as to be closed during the compression and power strokes. In. the engine shown, two of the cranks extend in line with cranks 9 and the other two in the opposite direction, insuring the proper operation of the valve sleeves.

During the operation of the engine, the valves 1 have been set to the required opening, the sleeves in their descent draw air into the valve chambers through the hollow bolts to and allow the hot air in the cooling chamber 10 to be replaced through openings 16, which afford communication between chambers 10 and 15 by the cool. airentering through bolts to, which cools the sleeve. As

the sleeve rises, air displaced by it and passes out through the hollow bolts. Oil introduced into the ports in the valve 11/ will be drawn into the valve chambers as the sleeve descends.

on the inside of the sleeves at their lower passes through the oil holes Z into the oil grooves 70 to lubricate the sleeves.

It will be seen that should the upper part of the sleeve become warped or scored, it may be readily replaced without the necessity of renewing the entire sleeve. At the same time, means, in addition to the usual water jackets, are provided for directly cooling the upper portion of the sleeve and the valve chamber adjacent the combustion chamber, where the heat of the engine is greatest.

Further, the sleeves are positively driven from a single set oi? bevel gears, and any one of them individually may be readily disconnected from the actuating gear by disconnecting block 5 and bracket 0 and removed through the cylmdcr head, Without m an wadisturbin the iston assembl i or .i .V a: v

their actuating'gear.

Having now fullydescribed my invention, what I claim and'desire to protect by Letters Patent is:

1. An internal combustion engine having a cylinder with a piston therein, a sleeve valve between the'piston and cylinder, the innerand outer diameters throughout the length of the sleeve being such as to pass between the cylinder and the piston, a ring engaging the inner wall of the valve at the lower end thereof, a bracket connected to the outer wall of the sleeve by bolts passing through the bracket into the ring, and a valve actuating device connected to the bracket.

2. An internal combustion engine having a cylinder with a piston therein, a sleeve valve between the piston and cylinder, the inner and outer diameters throughout the length of the sleeve being such as to pass between the cylinder and the piston. a. ring engaging the inner wall of the valve at the lower end thereof having a cut-away portion therein, a bracket having a tongue extending through an opening in the sleeve valve into the cut-away portion of the ring and connected to the outer wall of the sleeve by bolts passing through the bracket into the ring, and a valve aetua ting device connected to the bracket.

In testimony of which invention, I have hereunto set my hand, at Northampton, Penna, on this 30th day of July, 1920.

HOWARD WEISS.

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