US1088714A - Valve for explosive-engines. - Google Patents

Description

J. W. MEAKER. VALVE FOR EXPLOSIVE ENGINES. APPLICATION FILED MAY 13, 1912.

Patented Mar. 3, 1914.

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APPLICATION FILED MAY 13, 1912.

1,088,714. Patented Mar. 3, 1914.

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J. W. MEAKBR.

VALVE FOR EXPLOSIVE ENGINES.

APPLICATION IILED MAY 13, 1012.

Patented Mar. 3, 1914.

4 SHEETS-411E181 3.

(J11 uewtoa J. W. MEAKER.

VALVE FOR EXPLOSIVE ENGINES.

APPLICATION TILED MAY 13, 1912.

4. SHEETS-SHEET 4.

Patented Mar. 3, 1914 through its. wall near the explosion "head UNITED JOHN W. MEAKER, 013 DETROIT, MICHIGAN.

VALVE FOR EXPLOSIVE-ENGINES.

for Explosive-Engines. of wlfich the follow-- ing is a specification, reference being had therein to the accompanving drawings.

In the operation of explosive engines, it is desirable, in order to obtain the greatest etliciency, that the inlet and exhaust ports of the cylinders be opened as rapidly as possible. It is also desirable that the valves or like means controlling the ports operate with as little noise as possible and that the driving mechanism for such valves or thelike be positive in its action to insure proper timing of the valves in relation to the engine cycle.)

This invention relates to explosive engines and especially an arrangement of the valves thereof whereby the inlet and exhaust ports of the cylinders are rapidly uncovered and wherehv positive action that is practically noiseless \S imparted to the valves by mechanism which insures the proper timing of the valve movement in relation to the piston movements.

The invention consists in the matters hereinafter set forth and more particularly pointed out in the appended claims.

In the drawings Figure 1 is a view partially in side elevation and. partially in section, of a portion of a multi-cylinder ex-. plosive engine provided with a valve and valve gear that embodies feattu'es of the invention; Fig. 2 is a view in transverse section through a pair of motor cylinders; Fig. 3 is a view in vertical section through one of the cylinder on line III-III Fig. 2, the section line II-II on which Fig. 2 is taken being indicated; Fig. 4 is a view in section showing a modification of the device; Fig. 5 is a view in ection 'on line. IVIV of Fig. 4; Fig. 6 is a view in detail of an expansion packing member; and Figs. 7 and 8 are 'iews in detail showing the application of the member to a cylinder with a single closure.

. The invention as herein shown, is illustrated as applied to an explosive engine having a plurality of cylinders 1 and a main shaft 2 operated by pistons 3 in the cylinders. Each cylinder has anintake port 4 Specification of Letters Patent. Application filed May 13. 1912.

Patented Mar. 3, 1914.

Serial No. 696,816.

and a similar exhaust port 5. An inner annular valve closure 6 is journaled concentrically on the head of the cylinder and is provided with an opening 7 adapted to be brought into successive registration with the ports 4; and 5 when the sleeve is turned. An outer valve sleeve 8 is journalcd concentrically on the inner sleeve and is provided with an opening 9 which may be brought sin'iultaneously with the port I of the inner sleeve into registration with the ports 4 and 5' of the cylinder successively. The relative areas of the ports -t and 5 and of the sleeve openings T and 9 are so proportioned as to leave the ports 4 and a uncovered a sutlicient time for the successful operation of the inotor, such ports being re-' spectively connected with-intake manifold openings. and exhaust manifold outlets in the cylinder wall. For syrmnetry of ar 'angement and ease of construction the manifold openings of each pair of cylinders are preferably disposed as shown in Fig. '2 so as to be readily coupled to the manifold.

The outer sleeves are positively driven in unison by gears 12 formed on or secured to flanges 13 on the lower portions of the sleeve. the gears of the adjacent sleeves intermeshing and being driven in common by a pinion 14 that is geared or otherwisesecured to a shaft 15 operated through beveled gears 16 or the like from a counter-shaft that in turn is rotated by any suitable mechanism from the engine shaft. The inner sleeves (i are likewise provided with driving gears 18 on or secured to flanges if) on the sleeves, the gears being in train and operated by a driving pinion 20. The latter is secured to a spindle 21 that is operated by a pair of beveled gears 22 or the like that couple it to the countershat't to turn in oppositedirections to the spindle or shaft 15. As a convenient detail of construction the shaft 15 may be hollow and form a bearing sleeve for the spindle 21.

In the construction shown the ports 4 and 5' of the cylinderare in the same horizontal )lane. It sometimes isadvisable to place tieni in different planes and such constructionis indicated in Figs. 4 and 5 in which a cylinder 23 has an intake port 24, and arched or crowned head 25 converging to or forming a guide for gases to an exhaust 26 above the plane of the intake. 'In such constructionjan inner sleeve 27 ha a' port 28 which may be brought int 1.- regisremoved and repaired as needed without the time required by Inboth constructions suitable expansion rings, such as those indicated in aregused" to prevent leakage when the ordi-' Fig. 6,

nary provisions for cooling the cylinder Walls and cylinder heads are emplo' ed. In preferred form these consist of an inner .pair of segmental sections 33 whose corresponding ends are united by cross:- bars 34, and an outer pair of segments 35, united by ends bars 36. When in place withthe end bars on opposite sides of the ports in appropriate channels, they form a perfect seal against the escape of gases around the ports. By thisvform of construction and the proper disposition of theports the oppositely rotating sleeves uncover each port in half the a single sleeve and as the ports of the cylinder may be made very narrow the necessary area being obtained by lengthening the ports, it is possible to obtain extremely rapid action of the valves. As the motion of the valves is continuous and not reciprocatory they are practically noiseless in action and the driving gear which is positive is likewise quiet in its movements so that the motor runs with greater freedom from noise than motors of the usual type. Furthermore as there is no pounding or battering of the valves the latter; will wear evenly and cannot leak as the packing rings obviate this and are readily necessity of regrinding or refilling the valve closures proper.

Obviously, changes in the details of con 'struction may be made without departing from the spirit of the invention and I do not care to, limit myself to any particular form or arrangement of parts.

What I claim is 7 1. In an explosive engine, a cylinder having a lateral intake and a lateral exhaust port, an inner expansion ring consisting of a pair of segmental sections extending circumferentially around the cylinder wall in grooves there iffrom one port to the next with end bars connecting the adjacent endportions of, the segments and lying in grooves in the Wall ad acent a longitudinal port an outer expansion ring margin of the having a pair of segmental sections encircling the cylinder wall from port to port in connecting the adjacent end portions of the -.sections and lying in grooves each adjacent the other longitudinal mar in of a port, and an annular valve closure ournaled on the cylinder around the ports, and'rings and provided with an opening adapted to register with either port.

2. In an explosive engine,- the combina-- tion with a cylinder having a later-ataxhaust port and a lateral inlet port, andzan annular valve closure journaled on the cylinder over the ports and provided with an opening that with either of the cylinder from the mouthsof the ports consisting of a pair of expansion members,the inner: one havin tions extending circumferentially, of the cylinder From port to port in. channels in the cylinder wall with the end portions thereof connected by end bars lylng invigrooves parallel to the ad'acent longitudinal margin. of the ports, t a pair of segmental sections abutting the the channels of the cylinder, the end porgrooves parallel to the other longitudinal margins of the ports.

3. In an explosive engine, a cylinder having a lateral intake and a lateral exhaust port, an inner expansion ring consisting of cumt'erentially around the cylinder wall in grooves thereof from one port to the next with end bars connecting the adjacent end portions of the segments and lying in grooves in the wall adjacent a longitudinal margin of the port, having a pair of segmental sections encircling the cylinder wall from ,port to port in thegroove of the inner ring with end bars connecting the adjacent end' portions of the sections and lying the other'longitudinal margin of a port, a pair of annularvalve closures journaled concentrically on the cylinder around the in presence of two witnesses.

JQHN 1V. MEAKER.

my signature lVitnesses:

C. R. STIOKNEY,

ANNA M. Donn.

may be brought to registerports, of means for preventing 1eakage' between the closure anda pair of segmental a pair of segmental sections extending cir-' ports and rings and each provided with anopening, these openings being adapted to the groove ofthe inner ring with end bars eouter member having outer faces of the inner member sections in tions being united by end bars lying in I an outer expansion ring in grooves each adjacent

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