US899569A - Governor. - Google Patents

Description

R. SIEGMUND.

GOVERNOR. APPLICATION FILED JAN.22,190 6.

2 SHEETS-SHEET 1.

. NI/ENTOR i Bf j f y TTORNEY.

' Pausented Sept. 29, 1.908.

-WITNESSES:

R. SIEGMUND.

GOVERNOR. l .APPLIGATION FILED JAN. 22, 1906.

Patentd Sept. 29, 1908.

WHEN l l TTORNEf.

all thut occurs when but slight movement of li the movement oi the'governor be of seine ment et the driven member' 1.

' piston beiifgwmedisl, 'as at Astarting end as the passage 25.

will cause relative Amovement between the piston 14 and the shell. l5, und the shell l5` will automatically move upward und close This operation due to the conithe valve 6. pensetingdevice es place iu. a very slmrt period oi time, und es iluid connectimis solely are used, th c is no opportuni y .i or lost molui-v or 'reversal operation sur. l

The .movement o'lthe valve as described, is

the governor' takes place,the.t is, the governor may be verysensitive, the "hunting l may occur and still not transmit the undesirable slight variations to the riveli member. These slightmovements` do not actuute the driven member owing to the very small movement of the valve permitting` such a small quantity oi fluid to pees, end the brief time which the valve is open. ilowevcr, should the governor fluctuate more decidedly, the larger movement of block 1.7 and shell l therewith would, ofcourse, open the l te a greater extent and il. J driven nier operated. Considering taken piace end thet th speed reduced below ne-, then the l of the overnor will move inwurd.- This cause tie floating lever te mcve'the block .l J upward, and, es on each side of the ")iston ls'- is en incompressible iluid the she will be lifted and Wlth it the vulve 6. This will sult in fluid pressure entering the valve atl, being. transmitted through passage and duet 'l2 to the lower side of the piston le, which piston 14 is below its medial or normal position. Simulteneously the upper side oi the piston le is connected with the exhaust through duct ll, passage e. and opening Q.

consequence, the vulve would be opened suliciently to cause proper .amount of movellowever, ii the movement of the governor were slight, `the driven .i einher l would. not be actuated, in which instance, nevertheless, the piston 4l would have movement relative to the shell 15 vend in this instance would move the shell to yclose the valve 6, the resulting position of the shown in Fig.

Referring to' Fig. 2: The driven*` member 21 has lthe piston 22' in the chamber `23. Communicating with one end of the chem-I ber 23 is the passage 24. Communicating 'with the opposite endvof the chamber 23 is The flow of lluid through these passages is controlled by the valve 26 in the chamber 27. Between'the seat 'portions ofthe double-actin valve 2there is an o ening at 28 in the chamber 27 through whic fluid under pressure may enter. 'Near one end of the chamber 27.is the exhaust o ening 29. Near the opposite end of the' 'on the stem o the piston 34.

e amber 27 is the exhaust-opening 30. @Gonii seems municating with the same end of the chember23 as the pussage 24,is the duct 31. (lommunicating with the same end of the chumber 23 as the passage 25, is the duct 32. Duets 3l und 32 lead to annuler passages in the guide 33 und communicate with the piston 34. mounted in the shell 35, movable in the guide lt is to he noted in this construction wherein the euxiliary valve moving device is in tandem with the driven momber, the duct connections are oppositely arranged to that shown in Fig. l, wherein the auxiliary valve movin device is in tandem with the valve. The s ell 35has un upward extension 36, and between this extension 36 and the shell roper is mounted the block 37 i Engaging the block 37 is the floating lever 38, which at one end is connected by the link 39 with the valve 26. At its opposite end the lever 38 is connected to a fly ball governor. i

Operation of the'decice shown in Fig. 2.-- Should the s eed 'rise above normal, the fly balls would 1y outwsrd, liltin the end of the floating lever 38 engage therewith. flhis would cause the lever to move about. whe block 37 es a iulcrum and force the vulve downward," thereby admitting pressure through opening 23, passage 24 to lower side visten 22, throu h. duct 3l. to lower side of p on 34. Likewise this movement of the va ve 26 connects the upper side of the pistou 34 by ineens of the duct 32, u )per side of the chamber 23, passage with t e exhaust opening 3.0,A Accordingly the piston 34 will i .ve movement 'relative to its shell 35 and il move the floating lever 38 about the end the lever connected' with the governor :is ilcrum, lifting the valve 26 to close the ,tseages 2li and 25. Should-'the movement OL enough luid would have been permitted to pass to actuate the driven member 21. lin the event of the s ed falling, the il f ballsl would move inwur and actuate the eating lever 38 about the block 37 es a fulcrum. to lift the valve 26. Considering this second operation to take place after the one already described due to excessive speed, th'e piston 34 would be above medial position 1nthe shell 35. The upward movement of the valve 26' will permit fluid under pressure entering at opening 28, to ass through passage 25 into the up er end of chamber23`, through duet 32 to t y e upper side of the piston 34. Simultaneously the,lower side of the piston 34 is connected through duct 3'1, lower side of chamber 23 and assage 24, with the exhaust opening 29. rIlliis permits movement of the 'piston 34 ydownward in relation to the'shell 35 and moves the floating lever'38 about its connection with the governor 40 as a fulcrum,to move the valve 26 to closed position.`

Referring to Fig. 3': The driven meinber'f the ily balls have been cousiderable,

llO

' 41 has the iston 42 exposing the op passage 44. Communicating with the upper l .g end of the chamber 43 is the .passage 45. The flow of fluid through these passages 44 fand `45 is controlled by the 'double-acting I chamber 47, permitting the entrance of fluid' valve 46 in'chamber 47. Between the seats of the valv`e 46 is the opening 48 in the Near one end of the cham- Near the oposite end of thechamber 47 is the outlet 50.

under ressure.

' v ommunicating with the same end df the chamber 43 as the passage 44, is the duct 51. Communicating with the oppositeend of the chamber 43 is the duct 52. These ductsv51 and 52 communicate lwith annular passages in the guide 53 and therethrough conduct shown in Fig. 3.

lluid under pressure to the differential pistbn 54 inthe-shell 55 mounted in the guide 53.` The shell 55 `has an upward extension 56 serving as a guide to the stem of the piston 54. Mountedon the stem' of the piston 54, jbetween the shell 55 and the extension 56, is the block 57. Pivoted on the block 57 is the floating lever 58, connected at one end by a link 59 with' the drivenmember 41. The opposite end of the lever l58 is connected with the governor 60.u v

The operation of the device shown in Fig. 3 is lsimilar to that described as for Fig. 1, except that the floating lever 58 has its movement about the link 59 `as a fulcrum. i

.Referrin to Fig. 4: The driven member 61 has adi 'erential piston 62, similar to that This piston is in the chamber 63. Communicating With one end of the 'chamber 63 is the passage 65, control of fluid through which assa e is effected -by the single-acting valve `6 in the chamber 67, which has the inlet openingl 68 andthe outlet opening 70. A ductI 72 leads from the same end of the chamber 63 as the passage 65. This duct transmits-fluid pressure through a passage in the guide73 piston 74` in the shell 75. The op osite side of the piston 74 than that exposed) to fluid pressure has' the spring 71" operating Ibetween the shell 7 5 and t e piston 74. The shell 75 has anextension 76 serving as a guide for "the stem of the -piston 74 and also to limit theupward movement thereoQthrough the block1 .7 7."mounted. on 1the storni-'of the iston 74. Piv'otedonv the block77 is the oating lever 78 having connected vat one end thereof the link 79 at- .tached to thewdriven memberll. Engaging -ernor 80.

the opposite end of the lever 78 isthe gov- Operation of the' device shown in Fig. 4.-

Should the speed exceed normal, the governor 80 will move the iloatin lever about the link 79 as a fulcrum, liftin t e block 77, and, through the resistance of t e spring 71, move theshell 75 and the valve 66 to open position. This will permit fluid under pressure i entering at 68 to pass through passa e 65 and duct 72 to move the shell 75 in re ation to the piston '74, thereby closing the valve 66.

againstA the resistance of the spring -71. S ould the movement of the governor have been excessive, -suflcient fluid wouldhjave been permitted to enterthe chamber 63 before the valve66 had closed, so that the ldriven member 61 would have been proportionally moved. Assumingv now that the lso speed falls below normal, the `balls of the governor will move inward, the floatin -lever 78, moving about the link 79 as a fu crum, will 4cause the block 77 to move downward, which movement will be transmitted through the incompressible fluid at the lower side of the piston 74 and cause the valve 66 to move downward. This will permit the fluid at the lower side of the piston 74 to flow through the duct 72 and-passage 65 out through the exhaust openin 70, the spring 71 operating meanwhile to c ose the valve 66 as soon as the piston reaches the normal or medial position in the shell 75. l

Referring to Fig. 5: The flow of fluid through passages 4 and 5 is 'controlled by the double-acting poised valve 6 in the chamber 7. Fluid under pressure is admitf ted to f'the chamber 7 through the opening 8. Outlet lopenings 9 and 10 from thc valve 6 communicate with the vexhaust 7. .Communicating with the passage 4' is the duct 11 Communicating with the passage 5 is the duct4 an upward extension 16:l .v Mounted between These ducts 1 and 12 communicatev with annular-passages inthe guide 13 Vand the upward extension 16 and the shell 15 is the adjustable yieldable device -17 'mounted on the stem of the valve 14. This yieldable device l nits the extreme movements of the shell' relative tothe 'piston and serves as an aid in bringingthe elements into normal relation, that iswiththe piston 14` in a medial position in theshell 15 Of the pair of movableelements 1,14 and 1'5, theelement 15. has nogpositivej mechanical connection with i in 6e.

the otliei parts.

controlled by a fluid cou iling. The valve 6 1s pressure poised, the giadualiy passing` throii h the opening 6' into chamber 6b, from w iich chamber 6b it may ass through openings 6 into chamber 6d *rom the chamber is the o ening 6e into the passage 7 u leadin to the Aex aust 7 The opening c is' control of the shell i5',

The operation of the device shown in Fig. 5 is as follows: Fluid under pressure-entering at 8 seeps through opening 6 and open This fluid under pressure poises the va ve upward towardthe head 15g, but the continual seepiii of the' li uid through the opening 6a is ta ren care o by a like area, being an annular opening about the head 15xl in the -o ening 6B. Assuming that the governor ba ls move to force the stein of the piston 14 downward, a very slight movement might4 be taken up through the cataract opening 13". More pronounced movement would cause the incoin ressible fluid in the shelllI to force the she ldownward and the head 15a to its seat in the opening 6e. The fluid under ressure in the chamber 6l? would pass out to tile chamber 6 ,and this area bein somewhat larger than the opening 8', wouli cause the valve 6 to move downward from the head 15 sufliciently to give an opening about the head 15a equal in area to the opening 6a. This movement downward of the valve 6 would permit fluid under pressure to pass thiouvh duct 11 to the upper side of. iston 14 and at the same time the fluid beistoii 14 would be connected up through uct 12 with opening 10 'to the eX- haustf7. Relative movement between the piston 14 and the shell 15 would th'en take place and the shell 15 be moved u ward against the resistance of the yieldab e device 17. This would increase the size of the uid under pressureannular opening about the head 15, `relieve theI pressure in the chamber 6b, and permit the pressure at 8 to force the valve 6 up into such position that the opening about the head 15a will be equal in area to the opening 6.a, thereby seating the valve 6. Should the fluctuation of the governor be considerable, the movement. of the valve 6 would have been pro ortionally greater and sufficient fluid,r Wou d have4 ,been permitted -to' ass through the duct 4 to operate the driven member.' Considering the loperations described to have taken lace,- and the piston 14 to be below media position in the shell 15f, and that the governor operates in the reisis verse' direction to lift the piston 14,-this will cause the head. 15EL to move away from the opening 6, relieving the pressure in the ed by the head 15.**` i 'to the differential piston 54 ceases f i it the prescause relative movement between the piston.

and shell, the shell moving downward to close the opening 6. This would cause the pressure to rise in chambers -Gb and 6d, and y the valve 6 to move into seated or closed position, the movement of the valve of course being only iust sufficient to croate rn annular o )ening about the head'ltof area equal to t e opening f.

Referring to Fig. 7: The ducts and 52" communicate -wit i, annular ifiasfwge" in the guide 53. Between these pass of the guide is the controllable opening 53 operable as a cataract device. Fluid passim through the ducts 51 and is conducto in tlfe shell .55. rllie shell 55 has the upward extei'ision 5o serving as a guide for the stem of the piston 54. lhe stem of the piston has the eye 54 for engagement with the iloating lever, Mounted the stem of the piston Eid is the yieldable device 57". In the owe-r portion of message 47 leading to the exhaust. rlhe she. i5 has the heiic 55th The structure shown in Fig. 7 is designed for iluid coupling with the valve similar to the showing in liig 5'.

What is claimed and it is desired to secure by'Letters Patent 1. The combination in a governor, ci a fluid actuated driven member, a chaniier provided with a port .to which a ed to be admitted to actuatc sasl driven memberf ,a valve for controlling the ilo-vf oi fluid through said port,`a iloating lever having connection to said governor,'said valve, and said driven member, a fluid acti; ated expaisible member forming a part of said "vom nections, and means whereby any )rossore existingin said chamber automatically has a corresponding pressure developed to actuate said ex aiisiole member.

2.' Tlie combination with a governor, of a driven member adapted to be actuated by a fluid, a chamber rovided with a port to which a fluid is a apted to be admitted to operatesaid driven member, a valve adapted to control the flow of a l'uid through seid port, a floating lever connected to said governor, said valve, and said driven member in such a [luid isailapt- .i

iin

manner' as to include a mutually slidable shell vand piston therein, and a duct connecting the chamber and shell.

.3. The' combination with a' driven member provided wit a piston, a

overnor, of a chamber inclosing said piston and provided I' with ports on opposite sides of said piston,

chamber, and a loatin throu h which ports fluid is adapted to be introu'eed within said chamber to operate said driven member', a valve controlling said ports, ashell connected to said valve, a piston in said shell, said Vshell being provided withl ports on opposite sides of saidpiston, duets adapted to place said ports in said shell in communieetion with the interior of said 0' lever to which said piston, said driven member and said governor are each connected.

.4. The combination with a governor, of a driven member provided with a piston, a chamber inclosing said piston, said chamber being rovided Withiorts on opposite sides of saldi-)piston adapte to admit a Huid thereto, a valve adapted to admit the How of a Huid to,or the exhaust of a fluid from, said chamber, a shell secured to said valve, a piston inclosed by said slieli, seid shellbeing provided Wi'th ports on op o'site sides of said pis' ton, ducts adapted to orm a communication between said ports and said chamber-on opposite sides of said piston, a oating'lever, said valve, driven member and governor each being connected with said fioating lever in such a manner that movements of the governor are transmitted to said piston, thereby causing' said valve to move and admit fluid to said chamber on that side of said piston which is in communication with the port in said Shell away from which said piston tended to be moved by-said governor.

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

RUDOLPH SIEGMUND.

.Witnessesz i i GEO. E. KIRK, G. F. DnWmN.

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