US112058A - Improvement in engine-governors - Google Patents
Improvement in engine-governors Download PDFInfo
- Publication number
- US112058A US112058A US112058DA US112058A US 112058 A US112058 A US 112058A US 112058D A US112058D A US 112058DA US 112058 A US112058 A US 112058A
- Authority
- US
- United States
- Prior art keywords
- engine
- governors
- weights
- improvement
- steam
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Expired - Lifetime
Links
- 238000010276 construction Methods 0.000 description 6
- 210000001503 Joints Anatomy 0.000 description 2
- 230000015556 catabolic process Effects 0.000 description 2
- 230000001808 coupling Effects 0.000 description 2
- 238000010168 coupling process Methods 0.000 description 2
- 238000005859 coupling reaction Methods 0.000 description 2
- 230000000994 depressed Effects 0.000 description 2
- 230000003292 diminished Effects 0.000 description 2
- 230000003313 weakening Effects 0.000 description 2
Images
Classifications
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F01—MACHINES OR ENGINES IN GENERAL; ENGINE PLANTS IN GENERAL; STEAM ENGINES
- F01B—MACHINES OR ENGINES, IN GENERAL OR OF POSITIVE-DISPLACEMENT TYPE, e.g. STEAM ENGINES
- F01B25/00—Regulating, controlling, or safety means
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F01—MACHINES OR ENGINES IN GENERAL; ENGINE PLANTS IN GENERAL; STEAM ENGINES
- F01D—NON-POSITIVE DISPLACEMENT MACHINES OR ENGINES, e.g. STEAM TURBINES
- F01D17/00—Regulating or controlling by varying flow
- F01D17/10—Final actuators
- F01D17/12—Final actuators arranged in stator parts
- F01D17/14—Final actuators arranged in stator parts varying effective cross-sectional area of nozzles or guide conduits
- F01D17/141—Final actuators arranged in stator parts varying effective cross-sectional area of nozzles or guide conduits by means of shiftable members or valves obturating part of the flow path
- F01D17/145—Final actuators arranged in stator parts varying effective cross-sectional area of nozzles or guide conduits by means of shiftable members or valves obturating part of the flow path by means of valves, e.g. for steam turbines
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
- Y10T—TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
- Y10T137/00—Fluid handling
- Y10T137/0971—Speed responsive valve control
- Y10T137/1044—With other condition responsive valve control
- Y10T137/1062—Governor drive failure responsive
Definitions
- 'ihe object of this invention is .to produce a governor for steamecugines which, in its moyements, shall bc'niore sensitive, ⁇ more immediate in its action, and thcrebymore evenly regulate the motion of the engine, irrespective of its load.
- the governing-valve is equally balanced under any and varying pressures of steam, and at any'pbint of opening from the minimum to the maximum extent.
- the centrifugal weights are so arranged in connec' tion with the springs that the Aleast change in thc cngines speed will immediately be compensated for by a diminution or increase of the steam allowed to cuter into they, steam-cylinder, and thereby measure ont the power in the exact ratio to the demand andl uniform speed of the engine under various degrees of steam-pressure and resistance.
- Figure l of the drawing represents the spring-case, with apart cut'out to exhibit a portion ofthe spring C.
- Figure 2 is a sectional view of the case, containing. springs (l and c, with the rod D.
- the weights S shown in a horizontal position, -areV suspended on the arms B of the weights A by branch arms, so that, when theweights A extend outward by centrifugal force, the weights S are raised above the periphery of motion, and serve not only to steady the working of the governor, but, being carried above the central line ot' motion, when the speed of the engine slackens, the partial diminution of the very centrifw.
Description
@tutti della.
JOHN D. LYNDE, OF PHILADELPHIA, PENNSYLVANIA;
Letters Patent No, 112,058, dated February 21, 187,1.
IMPROVEMENT IN ENGINEGOVERNORS.
The Schedule referred to in these Letters Patent and making part of thev same.
To all whom, it 'may concern p Be it known that I, JOHN D. LYNDE, of Philadelphia,Pennsylvania, have invented Va newand useful Improvement in Governors for Steam-Engines.; and I do hereby declare that the following is afull and exact'description ofthe construction and operation of thesame, reference being `had to theannexed drawing forming part hereof.
'ihe object of this invention is .to produce a governor for steamecugines which, in its moyements, shall bc'niore sensitive, `more immediate in its action, and thcrebymore evenly regulate the motion of the engine, irrespective of its load. v
The governing-valve is equally balanced under any and varying pressures of steam, and at any'pbint of opening from the minimum to the maximum extent. The centrifugal weights are so arranged in connec' tion with the springs that the Aleast change in thc cngines speed will immediately be compensated for by a diminution or increase of the steam allowed to cuter into they, steam-cylinder, and thereby measure ont the power in the exact ratio to the demand andl uniform speed of the engine under various degrees of steam-pressure and resistance.
The construction of the brake and its arrangement, whereby to instantly and yeffectually arrest the ingress of steam to the steam-cylinder when the governorbclt runs off its pulley or breaks, is an essential object /oi this invention in preventing a break-down or other accident.
To obtain'thc best results from a governor it is imperiously necessary that the centrifugal weights be acted ou by no power other than the motion of the engine, while-they should be so suspended and in such a position as to expand m'ost readily and with greatest power vat a sudden start of the engine, and which position should also be that from which they will be the quickest depressed' at any diminution of the speed of the engine. Many governors work well one way,
'while thc'other they are too slow.
Figure l of the drawing represents the spring-case, with apart cut'out to exhibit a portion ofthe spring C.
Figure 2 is a sectional view of the case, containing. springs (l and c, with the rod D.
Figure this an exhibit of another method of construction and arrangement of thc weights A and S,
possible from the center (if/'motion without loss of leverage, they are suspended Abyarms B,Awhich are curved at any desired point lbetween the fulcrums H -in the various joints ot' connection, so that immediate action isobtained in making tile-changes required.
p By tightening or loosening the springs O and c, by means of the nut W, the speed of the engine may be increased or diminished. y
Now, in order `to guard against any possible weakening of thesprings C c the upper one is made much weaker than the other,aud may be closed before the' other one will be pcrceptibly compressed, which will occur about the time the weights A have expanded one-half their range ofoutward movement. The
upper spring is coiled quite finely, occupying about one-haii' the usual space of spiral springs made of the same size of wire, and always being closed when in use, 'its elasticity will be permanent. Whilethe lower spring is compressed so little the change in its strength will be of little, if' any, importance, whereas, if it performedthe duty offboth, or that due to the necessary action of a single spring moving the whole distance, it would be less efficient in large governors. In small governors the distance the'spriug will be compressed is so little that one may be sucient.
The weights S, shown in a horizontal position, -areV suspended on the arms B of the weights A by branch arms, so that, when theweights A extend outward by centrifugal force, the weights S are raised above the periphery of motion, and serve not only to steady the working of the governor, but, being carried above the central line ot' motion, when the speed of the engine slackens, the partial diminution of the very centrifw.
, gal force which raised the weights S renders available the weights Ain instantly allowing them to depress, and thereby a'c'tuate, thegovernor-valve, so as to measurel ont' the steam to the engine in such quantity aswill cause a uniform motion, irrespective of sudden changes of resistance to the engines power.
rlhe devices connecting the arms B ,with the valverod D are of the most simpleconstrnction, and the 4bearingslei'ng allstecl, the friction is reduced to the lowest possible amount.v
A A crosseheadis secured to the valveestem D by the hollow-pointed set-screw O.
lo -pmvide forwear the top of the column P 1s pro- 4vided with a movable collar, F, which may be moved .up as thebearing of the head Gr wears away and then held in place by a-,set-screw.
- The `'valve-rod, coupling, and lever are. similar to
Publications (1)
Publication Number | Publication Date |
---|---|
US112058A true US112058A (en) | 1871-02-21 |
Family
ID=2181526
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
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US112058D Expired - Lifetime US112058A (en) | Improvement in engine-governors |
Country Status (1)
Country | Link |
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US (1) | US112058A (en) |
Cited By (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US2454913A (en) * | 1944-09-27 | 1948-11-30 | Marco Louis De | Centrifugal governor |
US2479764A (en) * | 1946-03-18 | 1949-08-23 | Morton William | Transmission governor |
US2843351A (en) * | 1955-01-31 | 1958-07-15 | Hughes Aircraft Co | Balanced servo valve |
US20050234568A1 (en) * | 2004-04-19 | 2005-10-20 | Lg Electronics Inc. | Home network system and method for operating the same |
-
0
- US US112058D patent/US112058A/en not_active Expired - Lifetime
Cited By (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US2454913A (en) * | 1944-09-27 | 1948-11-30 | Marco Louis De | Centrifugal governor |
US2479764A (en) * | 1946-03-18 | 1949-08-23 | Morton William | Transmission governor |
US2843351A (en) * | 1955-01-31 | 1958-07-15 | Hughes Aircraft Co | Balanced servo valve |
US20050234568A1 (en) * | 2004-04-19 | 2005-10-20 | Lg Electronics Inc. | Home network system and method for operating the same |
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