US847086A

US847086A - Combined air and gas admission valve for explosive-engines.

Info

Publication number: US847086A
Application number: US29295405A
Authority: US
Inventors: Hugo Lentz
Original assignee: Individual
Current assignee: Individual
Priority date: 1905-12-22
Filing date: 1905-12-22
Publication date: 1907-03-12
Anticipated expiration: 1924-03-12

Description

PATENTED MAR. 12, 1907.

H. LENTZ. GOMBINED AIR AND GAS ADMISSION VALVE FOR EXPLOSIVB ENGINES.

' APPLICATION FILED DEC. 22, 1905.

2 SHEETS+BHEET l.

Fig. IV

Fig-.2"

w/r/vfssts rromvms:

ge-62W PATENTED MAR. 12, 1907.

I H; LENTZ. COMBINED AIR AND GAS ADMISSION VALVE FOR BXBLOSIVE ENGINES.

APPLICATION FILED D3122, 1905.

2' SHEETSSHEBT 2.

Fig.4

8 1% m mm 1 v M u Z f a.

2 7/ M, Mm a -.L 4W R Win 33m r %;/A.

a subject of Berlin, Germany,

HUGO LENTZ,. or BERLIN. GERMANY. J COMBINED AlR AND GAS ADMISSION-VALVE FOR, EXPLOQIVEENGINES.

Specification of Letters Patent;

Patented March 12. 1907.

Application filed iDece nber 22,1905. Serial llo. 292.964.

To all whom' it may concern:

Be it known that I, Hooo LEN'r-z, engineer, iwith any lift "of the,valve an explosive mixt-he German Empire, residing at ture of invariable have invented new and? geous to depart from the rule generally In orderthat it may be possible to obtain' composition, it is advantszuseful Improvements in and Relating to Dis- I adopted,'cons1sting in givingto the horizontributing Members for Explosibn,Motors, of i tal passage-sections of the valve surfaces proportionate t the volumes of the components I of the mixture and to give to the valve diwhich the following'is a'full, clear, andexact description.

This invention relates to admission-valves of explosion or internal-combustion engines mixture ofair and gas or hydrocarbon vapors; and the object of the in-' vention isto provide an admission-valve con-i sisting of a smglememher'combmmg n one part the air and gas admission valves.

One ofthe special features of the invention also consists-in giving to the combined admission-valve and toits seats forms which byway of example'these-two valves are here The lower seat c 'invention. 'Fig. 3 shows joints the seat of the insure theconstancy of'the mixture under the best conditions whatever the lift of this valve may be.

In the accompanying drawing, Figures 1 "and 2 are two sections,"in' elevation and in respectively, of a constructional form of plan, the admission member in accordancewith this another constructional form'of this part. Fig. 4 is identical with Fig. 3, except that in it the valve is shown lifted from itsseat.

4 The admissionmember according to this invention is characterized by the fact that,

on the one,hand,:in order to permit of the operation of this part, with an exceedingly small lift the air-valve is lven a tubular form with] double seat by com ining it With'the gas-admission valve, and, on the other hand, for the purpose of obviating thefharmful effect of unequal expansions upon the tightness of the as-valve ,is' arranged approximately in theplane of the lower seat of the air-valve.

Air-exceedingly simple means for combining thejair'and gas valves' 'consists in casting themtogether,

I InfFig..1', a designates-theftubnlizrdouble-seated air-valve,';and b the gas valve, and

united in a single-castingof'the airvalve is situated in the as the seat (Lof the gas-valve. The boss or hub; e of this combined double-seated valve, which hub serves for its attachment to the valve-rod s, at thesame time serves as the gas-valve.

the. hubof thedouble tubular. air-valve then servingas, a plate-valve for the of'the two seats of the air-valve .are to the- I 1 the volume of air is to the volume of gas in the mixture. The various magnitudes of the lifts of the valve do not in thiscase in any wayvary the They merely'alter the quantity of the mix-. ture admitted- If, however, circumstances render it; necessary to give to the horizontal passage-sections values corresponding to the proportions of the. mixture, the same ratio of the sections of the ports would be obtained by reducing the lift of one of the valves. This condition is realized'in the most simple manner by surrounding the gas valve with a flange or collar f, the'section of which is such that'the' section of the port the gas remains,

giving accesszto. for all possible lifts of the contour of the gas-valve in the same ratio as proportions of the mixture.

valve, proportionate to the total section of the port of theair-valve, Fig. 3. The flange or collar f, shown in Figs. 3 and 4 as being cast in one piece with the valve-seat, may

also be made as an interchangeable conical ring-- 1t 1s possible to largely diminish the effort required by'the distributing-gear'by adopt-' ing [for the admission-seat of the valve the constructional -form represented-in Fig. 4.

The connected seat cast with the valve then turned in the lathe permits of introducing a valve the two seats of which present the same diameter perfectly balanced, or else with the inner seat larger than the outer seat. In these figures the air amigas admission sockets are designated by i. and 2, respectively. The advantages of these'methods of constructing the admission member are as follows: This double member .in a single piece operates with small liftsf and all its parts are acted upon in the same manner by the governor; the employment of the slidevalve, with ports andcombine'd" with the id- 'ission valve, which is but iii-adapted for this purpose, is dispensed with; all the variations of the admission-sections are formed y" t with different lifts of the valvere- ICO fire

sulting, for example, from the action of the governorthe admission-sections for the gas and air remain proportionate to the constituents of the mixture; expansions produced by heat exert no influence upon the tightness of the gas-valve, and, finally, the

pressure of the gas which is produced during the explosion invariably tends to close the valve, wherebytlie initial load of the valveclos ing springs isreduced and the safety of working is increased, 7 v

f In the case'of a motor with suction gasgenerator for the purpose of permitting of the certaine the nature of my invention and in seat of the latter is approximately'or comwhat -manner it may be performed, I declare thatwhat I claim is e 1. An admission member for explosion-motors consisting of a tubular double-seated valve, serving as air-valve, in combination with the gas-valve in such a manner that the pletely in the corresponding plane of the seat of the air-valve. v

2. An admission member for explosion-motors consisting of a tubular double-seated valve, serving as air-valve, in combination with and cast in one piece with the gas-valve, in such a manner that the hub of the doubleseated valve serves at the same time as gasvalve.

3. An admission member for explosion-mos tors consisting of a tubular double-seated valve, serving as air-valve, in combination with and cast in one piece with the gas-valve, in such a manner that the ratio between the contour of the gas-valve, and the-sum of the contours of the seats of the air-valve, ,corre sponds to the ratio of the volumes of the constituents of the explosive mixture. 4. An admission m'emberfor explosion-motors consisting ofa tubular double -seatedvalve, serving as air-valve, in combination with and cast in one piece with the gas-valve,

zontal passage-sections of the air and gas valves are proportional to the ratio of the in such a manner that the surfaces of the hori-l volumes of the constituents-of the explosive mixture.

5. An admission member for explosionmo tors consisting of 'a' tubular double-seated valve, serving as air-valve,-in combination with andvcast in one piece with the gas-valve,

in such a manner that the surfaces of the hori- .zontal passage-sections of the air and gas valve are proportional to the ratio of the vol-' umes of the constituents of, the explosive mixture, the gas-valve being surrounded by a collar of appropriate cross-'section'in order tomalntain constant the ratio of the passages a to the ports'. 7

6. In a gas-engine, the combination of a tubular double-seated air-inlet valve, a gasvalve coa'cting therewith, and seats for the valves lying in approximately the; same plane. o

7. In a gas-engine, the combination of a tubular inlet-valve, two annular seats with which the ends of said valve respectively coact, a gas-valve supported within and centrally coincident to the air-inlet valve, and a seat with which the gas-valve coacts, the gasvalve seat and one seat of the air-inlet valve being in approximately the same plane.

In testimony whereof I have hereunto placed my hand, 'at Berlin, this 7th day of December, 1905, a i v p HUGO LENTZ. In presence of HENRY HASPER, IWOLDEMAR HAUPT.