Патент USA US2404960код для вставки
July 30, 1946. |-[_ F_ HANSON ET AL 2,404,960 POWER-PLANT ASSEMBLY AND CONTROL Filed Oct. 14, 1945 / 402: PP-Z '. . I Ply-Z 2/ 30 I ' ‘L2 6.3 , ' ' 34) 6 M) %?\/o%% [2/ // WITNESSES: 4%‘ M4" /8 y @592 \33 7/ 27 ?g! . I - //-0/’0WFHMNVENTOg/S . 0/76'0/7 4/7 Jo/zrgf/?ormm Wham’ ATTORNEY Patented July 30, 1946 2,404,960 UNITED STATES PATENT OFFICE 2,404,960 POWER-PLANT ASSEMBLY AND CONTROL Harold F. Hanson, Wilkinsburg, and John W. Morrow, Edgewood, Pa., assignors to Westing house Electric Corporation, East Pittsburgh, Pa., a corporation of Pennsylvania 1 Application October 14, 1943, Serial No. 506,200 3 Claims. (Cl. 290-4) Our invention relates to multiple-unit power plants, and it has particular relation to trans portable power-plants for linear-motor electric catapults for launching aircraft as described and claimed in a general way in an application of Frank B. Powers, Serial No. 473,843, ?led Janu ary 28, 1943, for Electric towing-car catapult for aircraft, and as more particularly described and claimed in an application of Ruel C. Jones, Serial No. 500,638, ?led August 31, 1943, for Electric catapults and power-plants, and an application of Ruel C. Jones and Maurice F. Jones, Serial No. 500,641, ?led August 31, 1943, for Prime movers 2 unit may be readily hauled into place at the edge of a ?ying-?eld l2. The power-plant assembly also includes a con trol-stand 13, which is shown as comprising a control-pulpit or desk having a slanting top [5, . on which are mounted various controlling and indicating devices, specifically, a throttle-control lever IS, a mixture-control lever I7, and various instruments l8. Of these various control-stand mechanisms 16, I‘! and [8, some of them, such as the throttle-control lever I0 and the mixture-con trol lever ll, require disengageable mechanically movable connections, such as control-cables 2!, leading to the throttle-lever 22 or the mixture 15 lever 23, of both or all of the engines PM—I and PM-Z. Others of the control-stand mechan posed in spaced, side-by-side relation, and Which isms, such as the instruments it, may include are mechanically joined together in predetermin various tubing, for electric cables or for mechani ing spaced relation for mutual bracing against cal connections, as indicated at .25, for leading to overturning. the various power-plant units PP—-l and PP—2. A more speci?c object of our invention is to In accordance with our invention, we provide provide a plurality of portable power-plants, and various disengageable mechanical spacing and a control-stand having common control and in— joining means for connecting together the var strumentation for said power-plants, in combina ious units of the entire assembly, and holding tion with disengageable means for mechanically 25 them together, in predetermined spaced relation. joining them all together in predetermined spaced Preferably, the portable power-plant units PP—I for electric catapults. ‘ An object of our invention is to provide a plu rality of portable power-plants which are dis relation, so that disengageable, mechanically and PP—2 are disposed in spaced side-by-side re movable connections may be utilized between said lation, as shown in Fig. 2, and they are disengage control-stand and the several power-plants, for ably, but rigidly, joined together in this spaced 30 accurate simultaneous operation or control. relation. The illustrated means for accomplish With the foregoing and other objects in view, ing this comprise heavy cross-tubes 30, which our invention consists in the combinations, sys loin the upturned ends H of the two skids W of tems, methods, parts and apparatus hereinafter each of the respective power-plant units PP—| described and claimed, and illustrated in the ac and PP—2. These cross-tubes 30, at the respec companying drawing, wherein Figure 1 is a side elevational view of a power plant assembly constructed in accordance with our invention, and Fig. 2 is a plan view thereof. In accordance with our invention, the entire power-plant assembly is made up of a plurality of power-plant units, any number of which may be utilized. For the purpose of illustration, only two power-plant units are utilized, as shown at tive ends of the two or more power-plants PP—-I and PP—-2, are spaced apart by means of spacer tubes 3|, so that, when the various power-plant units are hauled into place, they may be accu rately positioned by these spacer-tubes 3|. The entire assembly of the two or more power-plants PP—| and PP-Z are then drawn together by means of through-bolts or other tension-mem bers 32, which extend through the tubes 30 and 3| at each end of the assembled power-plant units, whereby the various units of the power plant are rigidly held together. The, control-stand i3 is also held in a ?xed, may be a gasoline-powered engine, and an elec predetermined, spaced relation with respect to tric generator G-| or 6-2, which may be an 80— cycle, three-phase, synchronous generator, each 50 the power-plant units PP-l and PP-Z, by means of a plurality of detachable stringers or spacers generator having its shaft coupled to the shaft 33, which may be conveniently covered by a re at its engine by means of a coupling C—I or (‘2-2. movable platform 34 as indicated in Fig. 1, the Each of the power-plants PP-l and PP-Z is platform being omitted in Fig. 2, for clarity of preferably mounted on a pair of supporting-skids l0 having upturned ends ll (Fig. 1), whereby the " illustration. In operation, it will be observed that all of PP——| and PP-Z in Fig. 2. Each power-plant comprises a prime mover PM-l or PM—2, which 2,404,960 it cal spacing-connection 3l-32 between the vari the units PP-—l, PP—-2 and I3 of the entire assembly, are mechanically linked or fastened to gether in ?xed, predetermined, spaced relation to each other, thereby accomplishing several desired results. From the standpoint of the control ous prime-mover units PP--l and PP--2, is that the units mutually brace each other, both against vibration, and against the danger of overturning. For example, if the generators G--l and G-2 should become short-circuited, very great tor sional forces would be produced, which might well overturn a single unit standing by itself, on stand, some of the connections between the con trol-stand and the power-plant units require pre determined lengths of connections for accurate a base as narrow as the distance between the simultaneous operation. For example, the con trol-cables 2! of the mixture-control lever ll two skids H] on which it is mounted. or the throttle-control lever 16 extend to both or all of the engines PM-—! and PM—2, for si side-by-side relation, and connecting said units together laterally, these several units mutually However, by placing a plurality of power-plant units in multaneously actuating the corresponding levers on both or all of the engines, so that, when the brace each other against overturning, and also against a certain amount of vibration resulting power-demand of the electric generators (3-! and 15 from the insecurity of the foundation which is G-Z is changed, all of the prime-movers PM-—! and PM-2 may be controlled simultaneously. In the illustrated embodiment of our invention, the three-phase terminals 40 of both or all of a?orded by the various skid-members IIJ resting upon the somewhat uneven surface of the ?ying— ?eld l2. while maintaining synchronous engine-operation trol-stand including disengageable, mechanically We claim as our invention: the generators G—| and Cir-2, are parallel-con 20 1. A plurality of portable power-plants, a con nected to a three-phase feeder or supply-line 4!, trol-stand having common control and instru which is diagrammatically indicated, as being rep mentation for said power-plants, and disengage resentative of the load-circuit of the generators, able means for mechanically joining them all to and this load is variable, at di?erent times, so gether in predetermined, spaced relation, each that it is necessary to simultaneously vary the 25 power-plant comprising a prime-mover and an prime-mover controls over a fairly wide range, electric generator driven thereby, and said con through the parallel electrical terminal-connec movable connections to a plurality of said power tions 40 and the common bus 4 l. plants and requiring said predetermined relation 30 As a result of our ?xed mechanical spacing for accurate simultaneous operation. of all of the parts of the entire power-plant as 2. The invention as de?ned in claim 1, char— sembly, it is possible for us to utilize mechani acterized by each power-plant having supporting cal connecting-cables 2! of ?xed predetermined skids having upturned ends. length, which do not need to be separately de vised each time the power-plant assembly is set 3. The invention as de?ned in claim 1, char acterized by a plurality of said electric genera up on a, different flying-?eld, or in a new loca tors being connected in parallel-circuit relation tion on the same ?ying-?eld. The parts are pre to each other. fabricated, and devised for instant assembly and disassembly on the ?eld. Another important advantage of the mechani v 40 HAROLD F. HANSON. JOHN W. MORROW.