US1790912A - A cobposatioit of - Google Patents

Description

M INVENTOR MflAf/J' JGGLDBERG BY Q PUMP GOVERNOR CONTROL MEANS Original Filed April 19, 1926 Feb. 3, 1931.

ATTORNEY Patented Feb. 3, 1931 UNIT'ED' STAT- s P T NT; OFFICE monnis J. GOLDBERG, or BnLoIT; WISCONSIN, 'Ass enon TO r'nrrtnnnxsgmonsna 00.,

, or CHICAGO, ILLINOIS, A oonronerron or-rLLINoIsruMr-GovnmvoacoNTRon MEANS Original application .filed April 19, .1926, Serial No. 103,034. I Divided and this-application filed J'uly 1,

. 1927. Seria1 No.-202,957.

This invention relates to improvements in pump governor control means,and especially 1 to an improved governor assembly for the control of injection pumps used with solid 5 injection engines. v l V 1 An object of this invention is to produce a simple and reliable governor assembly adapt- I ed forthe speed responsive control of fuel injection pumps. 7 I l V A further object is an improved arrange; ment and mounting of a governor assembly, such as will permit the manufacture and complete assembly of the timing and control mechanism, apartfrom the engine. 7

A still further object is the creation of a governor assembly as a unitary structure, which embodies an easily accessiblemeans for changing the timing of the injection are'used. V I

A still further object of this invention is the-creation of a governor of the rotatablesleeve type, which may bejdesignated asiaf torsional governor, and which was-especially '25 designed for the control of injection pump mechanism, of the type described in my 00- pending application, Serial'N'o; 202,956, dated July 1,192

, Further objects and advantagesof the 1n- '.;the following detailed description. I The subject matter of this applicationconstitutes a division of that originally included tionship, the'proportion andconstructionot the governor parts, they sleeves, cams, andother parts of the assembly, may be varied substantially without departure from the scope and full intendment of this invention; also that the described governor may. be used as a. speed responsive control for .any num-' ber of pump actuating and controlling cams,

and may be used for. the control of other sim ilar mechanism; the specific example illus- I trated being merely a single executional em- 'bodiment of the invention, which is submitted in'response to the statutory requirements re-;

9' lating to applications for Letters Patent.

portion of the governor pumps, relative to the engine on which they" vention will appear from the drawings and I In the vdrawings, Fig. 1 is a fragmentary sectional elevation showing the construction of the governor, the sleeves, andztheir relav tion to the injection pump rockersand tappets. This view shows only a fragmentary 7 case; theremaining mechamsmnot beingmaterial to a descrip tion of this invention. Fig. 2 is an end elevation of the governor, partly insection, in WlllClI is shown the means for effecting aztim mg ad ustment betweenthegovernor assembly and the engine. r In thejfollowing description of thedrawmg, the reference characters usedjin above mentioned c-o-pending application, 'Serial No. 103,034, of which'the present'case is a division, have been preserved inorderqbet ter to co-ordinate the dilie'rent parts and, functions of the mechanism described in tl esetwo C ses. Y r Referring by numerals to the drawings, the present device, and especially the mov ng" parts] thereof, may .be enclosed T in, suitable 1 housings, suchas areshown at 20 and 22., If

desired, a singleenclosing structure may be 5 employed inv lieu of the two separate housings. A suitable leveliof oil maybemaintained in either or both of the housings, 20 and22, by which the moving parts ofv the governor, sleeves,- etc., are lubricated through anordinary splash action; o v flhetwo housings which form the governor case are 'preferably located atone end of the engine to which connected, and about 7 one end of an'engine shaft, suchas the crank V shaft 23. This. provides the source of moo-j tion "for op'erating 'the K governor. and the pumps. YA suggested location and arrange; ment of the governor'and'pump operating mechanism described, may be seen by reference to the drawings accompanying my'application Serial No. 103,034. i

The'entire governor-assembly is, by prefer-e'nce, mounted 'on a sleeve 35, which. is

partof the assembly. The: sleeve is fitted over theend of the crank shafti 23, and adjustably attached thereto a holding. means,- su'ch as bolts 36, threadedinto the end ofthe shaft; The sleeve 35 isjp'rovided r at the closedend with icurved slotsj37, so?

The time of operating the rollers by means of cam 38 will be determined bythe position of sleeve 35 on shaft-23; hence, by making the position of this sleeve'adjustable through the medium of slots and'bol-ts 36, I have provided a simple and accessible means for adjusting thet-iming of the inthe engine. -It will be understood that a single cam 38, in the example described, may serve to operate a number of injection pump plungers. ,7 g d An additional cam 41 is preferably rotatably mounted on sleeve 35, and servesto operate mechanically the suction valves for the injection pumps, by means of tappet-z rollers 4:3. The position of cam 4:1 on sleeve. 3'5 is determined by the'position of the governor'parts, when the engine in operation.

In-this manner the time of closing of the suction valves of the pumps, and hence the amount of fuel ln ected into the cylinders of the engine, are controlled by the governor.

' The governor proper comprises weights ie, preferablypivoted at set, on pro ections which may consist of POltlODS made integral with sleeve '35. The governor weights 14 are preferably connected to cam ll'by meansof links 16. The links engage the cam {L1 by means of pins 4L7. I The centr fugal action otthe governor weights ea 18 pref erably opposed by governor springs 49. An

adjustment'for the tension of the springs, and hence the action of the governor, is provided by nuts-5O and adjustable bolts 51. The'h'ousing 22 may be provided with a removable cap 52, which renders the bolts 51' accessible for adjustment. w I,

The operatlon of the governor, and its action in efiecting a speed-responsive control over the injection pump operation, will be apparent "from the above description of parts. It will be seenthat as the governor weights fiy outwardly under the actionf'ot centrifugal force, they will partiallyrotate cam 41 about the" sleeve 35, and thereby vary the time of contact of cam ll with rollers, This will in turnpvary the time of 4 1'prov'ides ameans forsimply and, posi-i tively controlling the speed of the eng ne closing of the injection pump suot'ionvalves;

in a manner which is fully described in my co-pe nding application, SerialNo. 202,956,

dated July 1, 1927 .1 It will be understood, however, that the governor'and sleeve assembly maybe readily adapted toother flu1d control means in connection with engines or other apparatus. 7 r

The governorthrough its control of cam ing cams-38 and 41, may be removed for inspection or adjustment.

The housmg 20, serves to enclose an oil chamber 30, the level of .011 therein being .de-

termined by a constant'level drain 31. The

housing 22 is by preference kept filled with .oil to approirii-nately the same level as that in reservoir 30, The oil level Within the V j housing 22 is determinedautomatically ectlon periods for the various cylinders of.

revolving w'il-ldip into the oil,'and by splash v and agitation 'will serve to lubricate-the entire governor ine'chanism, as well as the pump and valve operating apparatus.

The essential features of the governor operation will be observed from the fact that cam ll consists of'a'sleeve-like member freely rotatable about the sleeve 35. 1f the cam ll were fixedly mounted on sleeve 35, the cycle of operation of tappet rollers 451 and 43 would remainunaffected by change in speed or load -01": the engine. The governor weights l4 acting through the links 46,- serveto rotate the cam Hand thereby to change the time of closing the suction valves of the injection pumps; The applicability of this movement of cam llrela't-iveto the pump plunger actuating cam 38, will be obvious to those skilled in theart.

- It will be seen that the described governor assembly providesasimple and automatic means for efi'ecting a speed control over solid 1njection' engines 'or like apparatus. The

governor assembly-above outlined in detail,

has been designed as simply as possible, and contains a minim-um number of parts, and requires practically no adjustment over a long period of use. The assembly has proven in'ex' perimentaluse to be entirely dependable in operation, and unusually economical in manufacture- 2 Although my inv ntion consists largely in the constructionand arrangement of parts hereinbefore descrifbed and particularly pointed out in the claims, yet I do not limit my invention tothe precise form or con struction of parts shownor the several parts thereof, inasmuch as various alterations may" be made without changing the. scope of my invention; r

I claim as 'my invention: i 1; In a speed-responsive control device, a rotatable shaft, a sleeveadjustably attached to-said shaft, a control cam rotatably mounted on said sleeve, an actuating cam adapted for I'OttltlOIl by sa1d sleeve, governor m'eoha nism carried said sleeve,and connecting.

2. In a speed-responsive control device, in combination with an actuating shaft therefor, a sleeve for mounting said device on said shaft, a cam carried by said sleeve and adapted to operate associated reciprocating mechanism, a second cam on said sleeve, adapted for the control of such mechanism, means for adjustably positioning the device on said' ing an adjustable sleeve on the shaft, a plu rality of actuating members carried by the sleeve, and governor mechanlsm carried by said sleeve and adapted relatively to displace the actuating members, said governor and control assembly adapted to be splash-lubricated within said housing.

4. In a speed-responsive control device, in

combination with a rotatable shaft of associated apparatus, and a lubricatinghousing for said device, a sleeve adjustably attached to the shaft, a member on the sleeve, for driving associated apparatus, a control cam on said sleeve, and governor mechanism within the housing and carried by said sleeve, whereby the relative positions of said cam and said sleeve may be varied, said sleeve and members carried thereby, being removable and attachable, as a unit, with respect to said shaft.

5. In a pump operating and controlling device, a pump actuating member and pump discharge regulating means including a cam; and a mounting member for the device, by which it is adapted to be adjustably secured, as aunit, to a rotatable driving shaft.

6. In a governing and operating unit for a pump and the like, a pump actuating cam and a discharge governing device, including a valve operating member, movable relatively to said cam, said unit being adjustably. se cured to a substantially plane surface on a rotatable shaft, and adapted to be driven by the shaft.

.7. In a device for controlling andoperating a pump and the like, a driving shaft, a

' pump driving member, adapted to be driven by the shaft, and adjustable with respect thereto, a rotatable pump controlling memher, a governor, connected with'the pump controlling member, and a carrler for said members and governor, adjustably secured to said shaft. 7

8. In an actuating and controlling device, for pumps and the like, a pump operating and governing mechanism, including a plurality of relatively displaceable cams, a one: piece sleeve adapted to carry said mechanism,

1 a shaft adapted to rotate the sleeve, andmeans providing an adjustableconnection between v the sleeve and shaft.

9. In an'actuating and control apparatus for pumps and the like, in combination with a rotatable shaft, pump operating and controlling mechanism including a pair of angularly displaceable pump control members,

and a mounting means'for said mechanism adapted to permit its ready introduction'and removal, as a unit, with respect to said shaft, said means including a hollow, slotted member and a bolt extendingthrou'gh a slot in said member, whereby the mounting means may be adjustably attached to the shaft;

10. In an actuating and control apparatus for pumps and the'like, and associated with an operating shaft therefor, a sleeve adapted to serve as a mounting for pump controlling mechanism, and having oneend sub- I stanti'ally closed and adjustably attached to the shaft, 2. second sleeve mounted on the first named sleeve, a pump-infiuencingmember carried by each of said sleeves, and a governor adapted to effect a relative rotation between the sleeves.

MORRIS J. GOLDBERG.

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