US1033911A - Explosion-engine. - Google Patents

Description

" W. s. LEB:

EXPLOSION ENGINE.

APPLICATION FILED JAN. 26, 1911. 1,033,91 l. Patented July 30,1912

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W. S. LEE.

EXPLOSION ENGINE.

APPLICATION HLBD 11111.26, 1911.

Patented July 30, 1912.

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Sme/Mofo "onrrV WILLIAM S. LEE, 0F DETROIT, MICHIGAN.

EXPLOSION-ENGINE. l

Specicaton of Letters Patent.

Appncation filed January 2e, 1911. serial No. 604,724.

plosion engine wherein the waste ofexplosive mixture, because of improper timing of the exhaust relative to the intake, shall be eliminated, and in which a sleeve-'like valve shall V,positively control the passage of the gases into and out of the explosion, -storage and compression chambers. f

In the accompanyingI drawings, Figure 1 is an elevation of the engine. Fig. 2 is a central vertical cross section at right angles to the shaft. Fig. 3 is a similar crosssection on the line of the shaft.

Similar reference characters refer to like, parts throughout the several views.

The stationary portions of the engine shown inthe drawings are a base 1 having bearings 2A for the crank-shaft 3, the combined frame and cylinder 4, and the cylinder head 5. The head and cylinder have the usual water passages 6 and -72 The cylinder has an intake opening f8 whichy communicates with the carbureter and with an anf nular intake passage 9. Itis'also provided 4with an exhaust opening 10 which connects to the annular exhaust passage 11. A spark plug 12 may screw into the threaded hole 13 in the head. An annular storage chamber 14 surrounds the cylinder at the joining line between its smaller or explosion portion 15 and the larger or compression portion 16. Slidable within thetwo portions 15 and 1G of the cylinder is thetwo-diameter valvesleeve, formed by the connected cylinders 18 and 19. This valve-sleeve is provided withthe discharge ports 20,the inlet-ports 21, and the compression Acontrol-ports 22, which will bc termed compression ports. The cylinder 15 has exhaust ports 23, while the cylinder 16 hasv intake ports 24 and transfer ports 25. These ports will all be spaced .around the cylinders and valve-sleeves, and their number, dimensions and proportions will vary according to the engineduty and the fuel.

The crank shaft 3 hasV eccentrics 28 se-v cured to it on either side of the crank 29, and eccentric rods 30 connect to the pins 31 carriedl by the ears 32 which extend down l from the valve-sleeve 19. Any other desired device to operate the valve sleeve may be employed.

rlhe piston is formed in two parts, a working piston 33 which fits the smaller part y18 of the valve-sleeve, and the compression piston 3.4 which tits the larger part 19 of the valve-sleeve.y The piston carries a pin 35, which passes through the upper end` of the connecting rod 36, the lower end of which engages the crank pin 37.

The lead of the eccentric may vary, dcpending upon the duty and the fuel of 'the engine. In the drawing, a lead'of about twenty two degrees is shown. With the parts as shown in Fig. 3, it will be noticed that the storage chamber, and thetransfer port are in communication with the compression chamber 38' above the piston Set, at the beginning of the down-stroke. All the compressed vapor has therefore had a chance Patented July 3o, i912..

to pass into the storage chamber which may l be of,y any desired size. As the movement of the valve sleeve is vquite rapid at this period, 4the transfer port `will be closed immediately after the piston begins to descend.

For practically the first one-third of the working stroke, the piston 34 travels at about ther'speed` of the valve-sleeve, but during practically the next one-third of thestroke, vthe piston travels much faster than the valve-sleeve. As a result, by the time the compression-port registers with the intake-port, the compression4 chamber rapidly increasing in size, and ,when the ports do register, a partial vacuum will be present and the explosive mixture uwill rush in from the carbureter, until the lead of the eccentric causes the compression port and the intake port to separate which occurs at about the time the piston reaches the bottom of its stroke". =The upward movement of the piston will then compress the chargein the.

compression chamber 38 until the compression port registers with the` transfer port as shown in Fig. 3. The compressed charge will pass into and remain in this storage port 23, which is at about the time the pis.

ton has passed through three fourths of its 1 working stroke, The exhaust occurs slightly before the inlet port opens so-.that l5y there will be no pressure in the working cyl# inder vlwhen the inlety port opens. The exhaust ceases just before the yexplosive mix-` ture has had time to fill the working c,yl`

' inder whereby loss of the mixture is prevented. The proportionsbetween the diameters 1of the two pistons 33 and 'lilwillJ depend upon the duty, they speed/and the fuel, and primarily upon the compression pres- .sure desired. t i

Many changes in the ldetails of construction of these engines'may be made-by those skilled in the art without departing from the spirit of my invention. l

Having now explained my'- construction, what I claim as my invention and desire to secure by Letters Patent -is:-

1. In nexplgsion engine, the combination of a, cylinder having bores of two diameters, a slidable valve-,sleeve mounted there-` in and having corresponding external diametersand a bore'of two diameters, and av v piston within the valve-sleeve having vdiameters corresponding to the bores of the valve a crank shaft, a 'connecting rod between thel shaft andv piston, and means connected to said crank-shaft for actuating the valvei 2. In an explosion engine, the combination ofa' cyllnder having bores of two diameters, a slidablevalve-sleeve `mounted therein --and' having' corresponding external v diameters and .a bore of two diameters, and.

a piston within the valve-sleeve. having vdiameters corresponding tothe bcres ofthe *.valve, a crank-shaft, a connecting rod between the shaft and piston, and means conn'ected tosaid .crank-shaft for actuating the valve-sleeve,`said cylinder and valve-sleeve having ports to permit the passage of fuel vapor and burned gases. e

v3. In an ex losion engine, thecombination of a cylin er, a valve-sleeve anda piston, each formed with two diameters, said cylinder having a chamber' in its wall for the storage of fuel vapor, said valve-sleeve andc linder havingpo-rts for the passage of fue vapor and vburned gases, avshaft, and means connected to said shaft whereby the piston may 'actuate the valve sleeve.

4. In an explosion engine,'th'e combination of a cylinder'having/bores of two diamy eters, la slidable valve-sleeve mounted there- 'in and having corresponding-external diameters and a bore of two diameters, and a piston within'the Valve-sleeve having diameters corresponding tolthe'bores of the valve, and means to actuate thel valve-sleeve, said cylinder having intake and exhaust ports controlled by said valve-sleeve and avstorage chamber and an annular passage for ex` plosive mixtures formed in itswalIS, said walls having ports controlled by the large-r portion of the valve-sleeve and adapted-gto communicate with anannular space within the larger bore of the,valve-sleeve and surrounding the smaller diameter ofthe piston.

5. In an explosion engine,` 'the combina-V tion of a cylinder'having exhaust ports at its end farthest Vfrom the crankshaft and intake ports at its end nearest the crank shafty and an inlet' passage and storage chamber in" its wall lat its end lnearest the crank shaft, a valve-seeve slidable therein and havinginlet and exhaust ports and orts to connect alternately with openings mto 'thevi'nlet passage and into the storage chamber, ,af piston slidablewithin the valvesleeve, a orankfshaft," a conn l tween ythe piston and cran -shaft, and means connected to the crankfshaft qfor' actuating the valve sleeve. l Y

In testimony. whereof I-haye 'signd-this ting rod bescribing witnesses.

" Witnesses; v

EDWARD N PAGELSEN, v y ELIZABETH lStL/Baowrnf' l

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