US994400A - Rotary motor. - Google Patents

Description

H.y E; HoLT. vROTARY MOTOR'.

APPLICATION FILED APB.. 13, 1909. A' 994,400, Patented June 6, 1911.

, L n w WN s UNITED STATES PATENT oEEioE.

HARRIS B. HOIiT, F PITTSBURG, PENNSYLVANIA, ASSIGNOR, BYIDIRECT AND MESNE ASSIGNMENTS,` TO THE LAGONDA MANUFACTURING COMPANY, OFSPRINGFIELD,

OHIO, A CORPORATION or OHIO.

ROTARY MOTOR.

Specification of Letters Patent.

Patented June 6,1911.I

Application filed April 13, 1909. Serial No. 489,652.

certain improvements iii rotary motors which while capable of general use is especially adapted 'for driving the tools einployed in cleaning boiler tubes, etc.

, The invention is hereinafter more fully described and claimed.

In the accompanying drawing forming a partof this specification, Figure 1 is a sectional elevation of a motor embodying the ,invention described herein; Figs. 2, 3 and 4 Vare transverse sections on planes indicated' respectively by" the lin'es II--IL III-III and IV-IV Fig. 1; Fig. 5 is a longitudinal section of one end of the motor, the plane of section being indicated by the line V-V,

Fig. 3, and Fig. 6 is a similar View of the opposite end of the motor, the plane of sec.

tion being indicated by the line VI-VI Fig. 4. 4

The shell or cylinder 1 has its ends closed by caps 2 and 3, preferably screwed onto the ends of the shell. The inner Walls of the shell adjacent to its ends aremade coiicentric with each other and the` axis of the shell, while the inner Wall of the intermediate portion of the shell is made eccentric. Journal blocks Lland 5 having dowel pins a are arranged in recessed concentric portions of the ends of the shell for supporting the journals 6 and 7 of the rotary member 8, one of said journal blocks, as 5, being annular toY permit of the journal 7 projecting beyond the cap 3 for attachment to the tool or other device to be driven. The portions of the journal blocks in which the journals are 45 mounted are provided with remoyable bushings 9, and between the inner ends of said bushings and tfhe. shoulders at the end of thel rotary member 8, bearing rings 10 are arranged, `so that in case of Wear only the bushings and rings need be renewed.

lIlie blades 11 are arranged to move freely 1n radial slots in the rotary member and are pressed outwardly by fluid pressure so that their edges will bear against the inner periphery of the shell, such periphery being eccentric to the axis of the rotary member, as clearly shown in Figs. 1 and 2. The journal block L1 is formed With a chamber 12 adapted to be connected to the tiuid pres' sure supply, by a pipe 13, and is connected by a port 14 to a longitudinal vpassage 15 leading to the eccentric chamber in which the rotary member operates. An outlet `from the opposite end of the chamber, is

formed by passage 16 in the otlierjournalblock` 5, said passage being located preferably at a point more than one hundred and eight degrees from the inlet port 15, meas-A uring in the direction of rotation.

An axial passage 17 is formed in the rotary member, vextending from the end adjacent` to the supply chamber to a point Where it Will intersect theradial slots lin which the blades 'or vanes 11 are arranged. This passage is connected .to the Huid pressure supply so that such pressuremay be employed for exerting a yielding outward pressure on the blades or vanes. This passage is also utilized for introducing a lubricant into the radial slots, and the Working chamber, such lubricant being introduced With the streani of fluid into the passage 17, preferably as shown and described in Patent No. 951234, granted F. M. Cannon, March 8, 1910, in which construction a reservoir for the lubricant is connected to the partto be lubricated by a lieXible tube independent of the tube for conducting the fluid under'pressure to the motor, the lubricating tube being preferably arranged inside of the fluid pressure tube. Fluid pressure is admitted to the reservoir for the lubricant so that the latter is under a forced feed, and is also preferably subjected to an atomizingaction. This lu bricating apparatus can be conveniently used in connection with the motor described herein, the fluid pressure supply pipe 1,3 being .connected as described to the chamber 12,

vand the tube 18 for the lubricant passing through the chamber 12 and being connected by a port 19 With the space in thej'ourr'ial block, in which the journal 6 rotates. The

lubricant being atomized and carried along by the fluid flowing under pressure at least equal to that in the pipe 13 will be forcedr between the surfaces to which the lubricant should be applied.

In order to p-revent the caps 2 and 3 from becoming loose, they are locked by suitable means as against rotation, as for example by spring actuated pins 2O arrzinged 1n sockets in the ends of the journal blocks and adapted to engagehol'es in the caps 2 and 3. IVhen it is desired to remore the caps, the

pins can be forced in by a suitable tool. It has been found that if the chamber in the journal block 4t into which the atomized lubricant passes be made large compared to small port 21 through which the mixed lubricant and fluid under pressure flow into said chamber there will be a sudden expansion of the uid producing a suiicient reduction of ten'lperature as to prevent any heating of the adjacent parts.

I claim herein as my invention: l; IIn a rotary motor, the combination of a shell having concentric vend portions and an intermedia-te eccentric portion, independcntiblocksgseatedin said concentric end portions" nv'ith-nieans to prevent their rotation,y

a rotpii journaled in said blocks, independent caps Ysgrrex'v-tfllreaded to the ends of said shell and adapted to holdv said blocks from longitudinali: movement, and means to lock said caps against rotation, substantially as described.4

Q. f'In ay rotary inotor, a shell having an admission rjjport, ajournal block seated in said shell,',l1a,`\iing an admission chamber formed therein and further adapted to form with said shell a port ,connecting said chamber `ith-thc admission port of the shell, a cap y',"secured"fjt'o said shell to hold said bloclr in l-place anda supply connection to said admission `chamber secured to said block and ex tending through an opening in said cap, sub-f stantially as described. 3

3. InV a rotary motor, shell having a journal block seated the/rein with an inlet my hand.

for the motive agent and a separate inlet for a lubricant and a double combined conduit `to connecteach inlet with its source of supply, substantially as described. ,y

4. In a rotary motor, the combination of a shell, a block seated in said shell, a rotor journaled in said block, a cap .screw-threaded to the shell to hold said block in place and a spring pressed locking devicc to hold said cap against rotation after the same has been screwed to the shell, substantially as described.

5. In a rotary motor, the combination of a shell having an admission port, a rotor having slotsl with radially movable blades therein, a block seated in said shell having a journal for said rotor, said block having an admission chamber formed therein with a port connecting),` said chamber with the admission port ot' the shell, said block further having a port opening to an axial opening in the rotor leading to said'slots in thc'rear ot said blades and supply connections, one a1'- rangedivithin the other, to said last nainedr port and chamber, substantially as described.

6. In a rotary motor, the combination of a shell forming a working chamber, a rotor in said chamber, a block forming a journal for said rotor, vsaid block having an admisl sion chamber with a portjconnccting same to said working chamber, and an additional port with a reduced outlet opening to said working chamber angjlfejupply' connections to said last na med port a'nd tofsaid block /chau'rber, substantiallyv as described.

In testimony whereof, I have hereunto set

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