US1014596A - Rotary internal-combustion engine. - Google Patents

Description

A. G. HATHCOGK.

ROTARY INTERNAL COMBUSTION ENGINE. APPLICATION FILED Nov. 10, 1910.

1,014,596, Patented Jan.9, 1912.

3 SHEETS-SHEET 1.

INVENTOR ATTORN EY A. G. HATHOOGK. ROTARY INTERNAL COMBUSTION ENGINE. APPLICATION TILED NOV.10, 1910.

. 14 5g Patented Jan.9,1912.

3 SHEETSSHEET 2.

N l n emtor 4 u l I l5 Mtmessesg0 'A. G. HATHCOGK. ROTARY INTERNAL COMBUSTION ENG'ENE.

APPLICATION FILED NOV 10, 191C.

Patented 31111.9, 1912.

3 SHEETS-SHEET 3.

f u i m v w s: m m m M lill lint: k h

UNXTED STATES PATENT oFFioE;

ALIUS G. HATHCOCK, OF SAN FRANCISCO, CALIFORNIA.

ROTARY INTERNAL-COMBUSTION ENGINE.

Specification of Letters Patent.

Patented Jan. 9,1912".

Application filed November 10, 1910. Serial No. 591,575.

bustion cylinders rotate about astationary' shaft.

The object of the invention is to provide an engine of this character, which shall be simple in construction, and effective in op eration.

In the accompanying drawings, Figure 1 is a side view of the engine, certain parts be ing shown in section; Fig. 2 is an enlarged. side view of one of the cams and the parts immediately cooperating therewith; Fig'. 3 is a section of the same on the line-3-3 of Fig.- 1 on an enlarged scale; Fig. 4 is a section on the line M of Fig. 3.

Referring to the drawing, 1, 2, indicate supports for bearings 3, 1. Secured in the bearing .3 is one end of a stationary crank shaft 5 carrying'a U-crank 6, the other end of said crank shaft being received within a socket 7 in a sleeve 8 which is secured by screws 9 to a sleeve 10 rotating in the other bearing 4. named end of said crank shaft is inserted a fuel 'supp'lypipe 12, having its inner end rounded, and abutting against a correspondingly-formed portion of said crank shaft, to avoid the formation of eddies in the supply of fluid fuel. The fluid fuel issues from said recess in the crank shaft into a groove 13 around the shaft and'from said groove it flows into fluid conduits 14:, one for each in ternal combustion cylinder 15. of which there are preferably five in number, although there might be three or seven. The inlet end of each tube is secured within a sleeve 16, to which sleeve is also secured, as

shown at 17, a casing 18', into which casing are screwed the inner ends of the lnternal combustlon cyllnders 15. Secured by screws 20 tothe sideof; said casing remote from said sleeve is'a cover21 "which in turn is secured by screws 2 to the sleeve-10. On the mediate part of saidcrank'are secured two half bushings 23 and against said bushings press bearing blocks 2 1 formed ontheend 31 pressedoutward by a spring 32.

Into a recess 11 in the first of piston rods 25, said blocks being held against said bushings by collar sections-26 secured together by screws 27.

The outlet end ofeach fuel supply tube is secured to the cylinder head '28 so as to be in register with a conduit 29 leading to the interior of stud-cylinder and at its end form'- ing an inlet valve seat. Resting against said seat is an inlet valve 30 having a stem Likewise formed in the head. of each cylinder is an outlet valve 33 having a stem 3% adapted to be pressed to its seat by a spring 35. The

inlet and outlet valves are controlled by-levers 36 pivoted upon standards '37 located substantially midway between said sleeve stems, the outer end of each lever-being pivoted to a rod 38 which is adjustably secured, as shown'at 39, to a rod 10, which rods are actuated by cams pressing against rollers 11 upon the ends of the rods. Each cam consists of two parts or sections 42, 43, spaced from each other to form a cam groove in which the roller 4:1 travels. Said we I sections are adjustably secured on a sprocket wheel 45, four of said sprocket wheels being driven by a sprocket chain 46 around the fifth sprocket wheel, which itself is mounted on the same shaft 47 as a gear wheel 48,. which meshes with a stationary pinion 49 upon the shaft 5 of the machine. As the cylinders rotate, said gear wheel 4c8'rotati'ng around, the pinion 19, is given a movement of rotationrelative to its center, and thus rotates the sprocket wheel 45 immediately connected thereto, and, by means of the sprocket hain, all the other sprocket wheels. it is in order to avoid having to depend upon the springs 32, 35, to return the rod 38 to its normal position but to positively aetuate the same, that I provide for each cam a main cam section 12 and an auxiliary cam section -;l3. The auxiliary cam section engages the roller 11 and compels it to pass along the groove eta and thereby insure a properly timed movement of the roller'and therefore also of the inlet and outlet valves.

' responding rod and lever to, first, openth inlet valve and maintain it open for one cycle, thatis, one-half of a revolution of the engine: it then'eloses it and maintains it closed for two cycles, or one whole revolution. I It thenimme'dlatelyopens the exhaust valve and- Ihaintains it open for one cycle,

- tionarily supported arm "Nhen the rod is W thdrawn toward the shaft 5, the c'on tact piece 52 rotates without making contact; but when the rod. is in its intermediate positlon, asshown in F g. 3, the platinum contact piece 12 is adapted to contact, and upon the breaking of said circuit to producea spark in the explosion chamber and ignite thdcombustibl gases,

60, (31, 62 are oil conduits for lubricating I the interior of the crank case.

1. The combination of-.-a stationary crankshaft,'a rotating crank case thereon, cylinders secured to said crank case, pistons in s'aid cylinders, piston rods. connected at their outer ends to said pistons-and rotating at the r inner ends about the crank case, inlet and outlet valves for said cylinders, levers for cont-rolling said valves, rods for actuatingsaid levers, cams arranged to successively impart similar motion to said rods, sprocket Wheels secured to said 'cams', a sprocket chain engaging all of said. Wheels whereby the remainder of said sprocket.

wheels are driven from one of them, a gear heel rotating with the latter sprocket wheel, and a pinion on the crank shaft rotating with said gear wheel, substantially as described.

v 2. Incombination with a stationary crank shaft, a rotating crank case thereon, cyl1n-- ders secured to said cra'nk casing, pistons in said. cylinders, piston, rods connected at their outer ends to said. pistons I and rotating 'at their inner ends about said 'crank shaft, inlet and outlet valves for the respective cylinders, levers for controll ng, said valves-,rods

for actuating said levers,'-cams for actuating.-

said rods, means for rotating all of-sa'id cams in unison, sparking devices in therespective 5 cylinders, flexible conductors carried by the rods and leading to said sparking devices, a contact piece secured to each rod and connected with said conductor, and a stationary contact adapted to contact with each contact piece in successionin the rotation of said cylinders, substantially-as described;

3. The combination of a stationary crank shaft,'a rotating crankcase thereon, cylin-' ders secured to said crank casing, pistons in said cylinders, piston rods connected at their out-er ends to said pistons and rotating'at their inner ends about said crank shaft, inlet and outlet valves for the respective cylinders, levers for cont-rolling said valves, rods for actuatingsaid levers, cams for actuating'said rods,means for rotating all ofsaid cams in unison, sparking devices in the respective cylinders, flexible conductors car ried by the rods and'leading to said spark ingdevices, a contact piece secured to each rod and connected with said conductors, a

stationarily supported arm, a rack adjustably-secured-in said arm, a device secured to said arin adj'ustably of the length of said device, and a contact carried by said device arranged to engage each contact. piece in succession in the rotation of said cylinders.

In testimony whereof I have hereunto 'set my hand in the presence of two subscrib ng witnesses.

' ALIUs e; HATHCOGK.

Witnesses:

FnANcIs M. .WRIGHT, D. B. RICHARDS.

Images