US917941A - Valve-gear and governing mechanism for explosion-engines. - Google Patents

Description

N. T. HARRINGTON. VALVE GEAE AND GOVEENING MEGHANISM Eon EXPLOSION ENGINES.

APPLICATION FILED JAN.20,1908.

917,941. E PanennedApr.13,19o9.

fin/672 for PATENT OFFICE.

i NORMAN r., HARRINGTON, or LANSING, MICHIGAN.

"vante-cuan mn covnasmc Meenemen son nxrnolsronnxemns,

To all vwhom 'it may concern:

Be it know-n that I, NO RMAN T. EARRING- Ton, `a citizen of the United States of America, residing at Lansing',` in the county of Ingham and State of Michigan, "have incentrifugal governor cooperating therewith.

' vTo this' end the invention consists in the construction of mechanism for simultaneously operating separate air and gas admission va, ves; further in the means by which the relative. movement of'said valves may be adjusted lto vary the ratio of air to gas, and further in the means whereby the amplitude of movement of both val'vesmaybe corres ondingly varied by an automatic governor, al as hereinafter set forth.

Y In the drawings-Fi re 1 is a side elevation. Fig. 2 is a top p an view.

A and B are valves for respectively controlling the admission of air and gas to the mixingchamber of an explosion e ine.

C/is the exhaust valve, and D a ever for operating said exhaust valve -through vthe medium of any-suitable mechanism, such as the rod E and cam F upon the constantly driven shaft G. j

In the operation of explosion engines the amount of air that is mixed with a given vol- -ume of gas to produce the proper explosive mixture depends upon the quality or richness ofthe gas, while the power depends upon the quantity of any given explosive mixture which isadmitted and compressed in the explosion chamber. One of the features ofmy invention is the construction by which adjustment foreither quality (that is, the proportion of air tov gas) or quantity may be readily effected independently of and Without interfering with each other. For ythis purpose, the air andgasadmission valves A and' B are operated through a' duplex mech- Speeication of Letters Patent. I Application mea January 2o, 190s. serial Nb. amas.

Y which operates'the exhaust valverand as shown, is of the following construction:

G is a segmental arm or arms projecting laterally from the lever, and H are radius rods adjustably connected to said segments at one end, and at their opposite ends connected to levers I at a point concentric. with.

the segments'in the neutraf position of the lever D. Each of the levers I is connected to lparallel the rock arms J which are arranged to a rock arm K extending o posite yfrom its fulcrum. vThe rock arms. are arranged to engage with the stems of the valves A and B respectively.

L is a bearing intermediate the rock arms Pateteaajprii 1e, l

J and K through which the movement of the former is -transmitted'to the ,latterf This bearing, whichl is preferably in the form of a v roll, is longitudinally adjustable in relation to therock arms, and the leverage exerted by the one arm upont-he other depends upon the position of this bearing L. The bea L are adjusted b links M attached `to roc arms N on a roc shaft O, the latterbeing preferably controlled by acentriug'al governor P connected to the, rock shaft 0 through the medium of the rock shaft Q and lever R. v

- In operation the cam-l1` will impart a rocking movement 4to the lever D, which will o perate the exhaust .valve C, and through t e medium. of segments G, radius' rods 'I-I, and

rock arms I will im arta rocking movement L rods H in the normal positionof the parts ar'ev concentric with the segments G andV adjustable thereon, they lmay be set in any positlon from a point in line with v'the fulcrum with the lever D, and where no movement will beim- ;parted't'o the rod to a oint at the extreme end of the radius arm Each of the rods II may be adjusted upon its segment independently of the other, and thus the amplitude of movement of each of the rock arms J ma be adjusted independently of the other,

' an to be in any-desired ratio thereto. The

'amplitude ofmovement ofthe valves A and B is," however, dependentnot onl upon vthe adjustment of the radius rods# but also 'I'pon the adjustment of the bearings L. einem, preferably directly from the lever liese bearings may be adjusted' into any polos sitioli Within iixed limits, but as they are simultaneously operated from a common rock shaft O the ratio of movement of the valves Will be the same as that o the rock arms J.

Thus the operation of the governor' which.

controls the rock shaft OA will merely vary the quantity of the explosive mixture admitted by the valves `into the engine, but will not change its proportions. On the other hand, an adjustment of the radius rods Iii will change the relative proportionA of air.

taneously seating and unseating said valves,-

means intermedlate said actuating mechanism and said valves for automatically and correspondingly varying the amplitude of movement of said valves and independent means for adjusting the relative degree of movement thereof.

2. In an explosion engine, the combinal tion with separate. air .and gas admission valves, of a valve operating mechanism for simultaneously seating and -unseating said valves, a lgovernor controlling said valve operating mechanism for correspondingly varying 'the amplitudefo'f movement of, said valves, and independent means of adjustment for varying the relative amplitudes of movement of sald valves. l j i.

3. In an explosion' engine, the combination with separate air and as admission valves, of a valve gear for slmultaneously seating and unseating said valves, a governor automatically controlling said gear to correspondingly vary the amplitude of movement of said valves, and manually operable means for adjusting saidl gear to vary the relative amplitudes of movement of said valves.

4. In an explosion engine, the combination with separate air and gas admission valves, of a common actuating member therefor', andA independently adjustable connections between said actuating-member and said valves, each comprising a radius rod land a coperating segment.

5. In' an explosion engine,y the combination with' separate air and gas admission valves. of a Acommon actuating member therefor, and means for adjusting the relative movement imparted by said member to said valves by a radius rod, and-a coperating segment to which said rod is adjustably secured. j

In an explosion engine, the combination with separate air and gas valves, of a common actuating memberfor said valves, and connections between said common actuating member and both of said valves each comprising a rock arm, aradius rod pivotallv attached thereto, and a segmental roclr arm to which the opposite end of said lrod is adjustably secured. l

7. In an explosion engine, the combination with a plurality of valves for separately controlling the gaseous ingredients of the eX- plosive mixture, of means for simultaneously' seating and unseating said valves, and mechanism'intermedlate saidnieans and each of said valves, including a segmental rock arm,A

a radius rod actuated thereby and adjustably secured to said segment, a rock arm actuated by said radius rod and oppositely parallel extending rock arms, and a shiftable bearing intermediate said rock arms. -4

8. In an explosion engine, the combination With a plurality of valves for separately y controlling the gaseous ingredients of the explosive mixture, of means for simultaneouslyA seating 'and unseating said valves, and mechanism intermediate said means and said` valves comprising a segmental rock arm, a radius rod' actuated by said rock arm., a rock arm actuated'by said radius rod, a parallel and oppositely extending rock arm, a shiftable bearing intermediate said parallell rock arms; automatic governing' means -and manually operable means the one controlling the shifting of said lbearing intermediate'said rock arms and the other for adjusting saidv ments, a. pair of oppositely extending roclr arms and an intermediate shiftable bearing between said rock arms, and a common means for shifting the-intermediate bearing of each of said intermediate connections simultaneously, for the purpose described.

10. Inan explosion engine, the. combination with separate air and gas valves, ofv a valvegear for simultaneously seating and unseating said valves, a governor automatically controlling said gear to correspondingly vary the amplitude of movement of said valves, positive connections between said governor and gear, and manually operable means for adjusting said gear to vary the rela tive amplitudes of movement of said valves.'

11. In an explosionengine, the combina- .tion with separate air and gas valves, of

a common actuating melA ber therefor and independently adjustable connections between said actuating4 member land said valves, each comprising a radius rod and a cooperating segment and positive connections therebetween.

12. In an explosion engine, the combination of separate air and gas admission valves, a common actuating mechanism therefor, means intermediate said actuating mechanism and said valves for automatically and correspondingly varying the amplitude of. movement of said valves, and independent means for adjusting the relative degree of movement of one of said valves in relation to the other, said means comprising a radius rod and segment. l

In testimony whereof I aflix my signature in presence of two witnesses.

NORMAN T. HARRINGTON. Witnesses:

K NELLIE KINSELLA, JAMES P. BARRY.

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