US1067286A - Rotary valve for explosive-engines. - Google Patents

Rotary valve for explosive-engines. Download PDF

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Publication number
US1067286A
US1067286A US50841409A US1909508414A US1067286A US 1067286 A US1067286 A US 1067286A US 50841409 A US50841409 A US 50841409A US 1909508414 A US1909508414 A US 1909508414A US 1067286 A US1067286 A US 1067286A
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United States
Prior art keywords
engines
explosive
rotary valve
shaft
sleeve
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Expired - Lifetime
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US50841409A
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Rolland S Trott
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    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F02—COMBUSTION ENGINES; HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
    • F02B—INTERNAL-COMBUSTION PISTON ENGINES; COMBUSTION ENGINES IN GENERAL
    • F02B75/00—Other engines
    • F02B75/02—Engines characterised by their cycles, e.g. six-stroke
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F01—MACHINES OR ENGINES IN GENERAL; ENGINE PLANTS IN GENERAL; STEAM ENGINES
    • F01L—CYCLICALLY OPERATING VALVES FOR MACHINES OR ENGINES
    • F01L7/00—Rotary or oscillatory slide valve-gear or valve arrangements
    • F01L7/02—Rotary or oscillatory slide valve-gear or valve arrangements with cylindrical, sleeve, or part-annularly shaped valves
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F02—COMBUSTION ENGINES; HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
    • F02B—INTERNAL-COMBUSTION PISTON ENGINES; COMBUSTION ENGINES IN GENERAL
    • F02B75/00—Other engines
    • F02B75/02—Engines characterised by their cycles, e.g. six-stroke
    • F02B2075/022—Engines characterised by their cycles, e.g. six-stroke having less than six strokes per cycle
    • F02B2075/025—Engines characterised by their cycles, e.g. six-stroke having less than six strokes per cycle two

Definitions

  • WITNESSES I N VEN TOR.
  • crank shaft (3 composed oft; fist-members 7 and shaft members 8 and f), is revolubly mounted.
  • the wrists of the crank shaft connect,
  • crank case 5 is providcd with cylindrical extensions 16 for the reception of ball-bearings 15, the runways l3 and 14 of which are respectively mounted within said extensions and secured upon theaxially alined shaft-members 8 and extending therethrough.
  • the open end of the extension 16 through which the member 8 projects, is closed by the correspondingly shaped flange 17 of a sleeve 18 which is rigidly securedt-o said extension by means of nuts 19 screwed upon stud-bolts 20, or analogous fastening means.
  • the sleeve 18 which in conjunction with the therein fitted outer portion of the shaftmember 8, constitutes the intake-valve of the engine, has a laterally projecting branch in perfect 5 agreement with the movements of the crank 21, the outer contracted extremity of which is threaded to connect with a carburetor or Patented July 15, 1913.
  • the length of the port 25 corresponds with that of the opening 26, while its widthis determined by an are which is approximately the supplement of that between the sides of said opening ⁇ vith'the result that during each revolution of the shaft, the valve will be alternately opened and closed for approximately equal periods and the explosive mixture admitted to the crank case 2 and the therewith communicating cylinder during the outward stroke of the piston.
  • a crank-case a hollow crank shaft having inits circumferential surface, a port communicating with its interior, a bearing on said casing for supporting said shaft at a non-ported portion thereof, and a non-bearing sleeve surrounding the ported portion of the shaft and having an opening adapted to register with the said port during apart of each revolu tion of the shaft, said sleeve being detachably secured to said casing.

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  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Chemical & Material Sciences (AREA)
  • Combustion & Propulsion (AREA)
  • Lift Valve (AREA)

Description

R. S. TROTT.
ROTARY VALVE FOR EXPLOSIVE ENGINES.
APPLICATION FILED JULY 19, 1909, 1,067,286, Patented July 15, 1913 2 SHEETS-'SHEET 1.
INVENTOR. 5. 77*072 A TTORNEY.
W I TNESSES R. S. TROTT.
ROTARY VALVE FOR EXPLOSIVE ENGINES.
APPLICATION FILED JULY 19, 1909.
1,067,286, Patented July 15, 1913.
2 SHEETS-SHEET 2.
WITNESSES: I N VEN TOR.
A! IORNEY.
UNITED sTAirEs PATTOFFICE.
\ I Ro LL-Al lD S.'TROTT, OF DENVER, COLORADO.
ROTARY VALVE FOR EX PLOSIVE-ENGINES.
Specification of Letters Patent.
Application filed July 19. 1909. Serial No. 508,414.
To all whom it may concern:
Be it known that I, Romano S. TRO'l'l,
citizenof the United States of America, re-
siding at. Denver, in the county of Denver and State of Col0rado;have invented certain and the therewith connected piston. I attain this object by. the mechanism shown in the accompanying drawings in the views of which corresponding parts are similarly designated and in which Figure 1, represents a-horizontal, central. longitudinal section through thecrank case of an eyplosive engine and the therewith connected parts; Fig. 2, across-section along the line Z -2 Fig. 1, drawn to an enlarged scale, and Fig. 3, a section taken along the line 3-3 Fig. 2.
Referring to the drawings by numerals, let 5 denote the crank case in which a crank shaft (3 composed oft; fist-members 7 and shaft members 8 and f), is revolubly mounted. The wrists of the crank shaft connect,
as usual, with connecting rodslO, the op posite ends of which engage the reciprocating pistons of the engine. The crank case 5 is providcd with cylindrical extensions 16 for the reception of ball-bearings 15, the runways l3 and 14 of which are respectively mounted within said extensions and secured upon theaxially alined shaft-members 8 and extending therethrough. The open end of the extension 16 through which the member 8 projects, is closed by the correspondingly shaped flange 17 of a sleeve 18 which is rigidly securedt-o said extension by means of nuts 19 screwed upon stud-bolts 20, or analogous fastening means.
The sleeve 18 which in conjunction with the therein fitted outer portion of the shaftmember 8, constitutes the intake-valve of the engine, has a laterally projecting branch in perfect 5 agreement with the movements of the crank 21, the outer contracted extremity of which is threaded to connect with a carburetor or Patented July 15, 1913.
other source of motive fluid, and the memher 8 base peripheral port '25 which, by means of an axial bore case and which is disposed to register with the opening 26 made by the branch 21 in the interiorof the sleeve 18, during a part of each revolution. The extremity of the shaftmember 8, protruding beyond the end of the 24 in said member,
t communicates with the interior of the cranlc '60 sleeve 18, carries a fly-wheel 23 for the usual purpose.
The length of the port 25 corresponds with that of the opening 26, while its widthis determined by an are which is approximately the supplement of that between the sides of said opening \vith'the result that during each revolution of the shaft, the valve will be alternately opened and closed for approximately equal periods and the explosive mixture admitted to the crank case 2 and the therewith communicating cylinder during the outward stroke of the piston.
It will be observed that by reason ofthe eontiguity of the ball bearing 15 to the vgalve portion of the shaft, friction between the latter and the surrounding sleeve is reduced to a minimum while the valve to the piston and the absence of separate parts, renders the action of the engine positive and reliable.
\Vhile I have shown and described my improved valve in the best form now known to me, I wish it understood that changes in the proportions and minor details of con struction may be resorted to within the spirit of the invent-ion.
\Vhat I claim and desire to secure by Letters Patent lSZT v 1. In an explosion engine, a crank-case, a hollow crank shaft having inits circumferential surface, a port communicating with its interior, a bearing on said casing for supporting said shaft at a non-ported portion thereof, and a non-bearing sleeve surrounding the ported portion of the shaft and having an opening adapted to register with the said port during apart of each revolu tion of the shaft, said sleeve being detachably secured to said casing.
9.. In an explosion engine, a crank casing,
surface a port communicating with its intefixed relation of the rior, an extension formed ,on said casing, a ably secured to said casing extension, subroller bearing mounted on said extension for supporting said shaft at a non-ported portion thereof, and a non-bearing sleeve 1 surrounding the ported portion of the shaftand having an opening adapted to register with the said port during a partof each revolution of the shaft, said sleeve being detach- StantiaiIy as described. 10
In testimony whereof I have affixed my signature in presence of two Witnesses.
ROLLAND S. TROTT. Vi t-nesses G. J. ROLLANDET, M. L. GEARY.
US50841409A 1909-07-19 1909-07-19 Rotary valve for explosive-engines. Expired - Lifetime US1067286A (en)

Priority Applications (1)

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US50841409A US1067286A (en) 1909-07-19 1909-07-19 Rotary valve for explosive-engines.

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US50841409A US1067286A (en) 1909-07-19 1909-07-19 Rotary valve for explosive-engines.

Publications (1)

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US1067286A true US1067286A (en) 1913-07-15

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