US1061452A - Rotary engine. - Google Patents

Description

A. M. CONDIT.

ROTARY ENGINE.

APPLIOATION FILED 111111.27, 1912.

1,061,452. Patented May 13, 1913.

3 SHEETS"SHEET 1.

A. M. GQNDIT.

ROTARY ENGINE.

APPLICATION FILED MAR.2'7, 1912.

Patented May 13, 1913.

3 SHEETS-SHEET 2.

wi lmmo A. M GONDIT.

ROTARY ENGINE. APBLIOATION FILED mum, 1912.

1,061,452. Patented May 13, 1913.

3 SHEETS-SHEET 3.

STAT$ ARTHUR M. CONDIT, OF EAST ORANGE, NEW JERSEY.

ROTARY ENGINE.

Specification of Letters Patent.

Patented May 13, 1913.

Application filed March 27, 1912. Serial No. 686,523.

To all whom it may concern Be it known that I, ARTHUR M. CONDI'I, a citizen of the United States, and residing at East Orange, in the county of Essex and State of New Jersey, have invented certain new and useful Improvements in Rotary Engines, of which the following is a specification.

This invention relates to rotary engines in which either the stator or rotor may be provided with blades movable into and out of position, in which they cooperate with fixed abutments to form expansion chambers for the motive fluid.

The primary object of this invention is to provide an improved construction, combination and arrangement of parts in devices of this character, whereby they can be simply and economically constructed and rendered durable and efiicient in operation.

Toward the attainment of these objects the present invention contemplates the pro vision of blades which rotate continuously in one direction so as to eliminate as far as possible, the jars and shocks with the accompanying rattle and lost motion which is present in a device of this character in which each blade moves first in one direction and then in the opposite direction. The advantages to bederived are apparent when it is considered that in a rotary engine of this character which runs at 2,000 B. P. M., each movable blade must be accelerated from rest to a maximum speed and retarded till it is at rest again, 4,000 times during each minute which it runs. Furthermore it will be evident that the inertia of these blades at each reversal exerts a great tendency to 7 parts being broken away and parts shown in section; Fig. 3 is a front elevation of the rotor removed from the housing; Flg. 4 1s a detailed elevation of one of the rotating blades; Fig. 5 is an elevation similar to Fig. 3 showing a modified form of my invention.

Referring more particularly to the drawings and first to the embodiment shown in Figs. 1 to 41:, inclusive, the rotor housing comprises sections 1 and 2, provided with oppositely disposed bearings 23 and 4, within which is journaled the shaft 5 of the rotor comprising a plurality of rotatable blades 6, which are journaled on axes extending radially from the shaft 5, being mounted respectively on stub shafts 7 with spur gears 8 secured to the inner ends of said stub shafts. A plurality of radially arranged spindles 9, which are provided with pinions 10 on their outer ends, which mesh with the gears S, and on their inner ends are provided with bevel pinions 11, which mesh with a fixed gear 12 carried by the section 2 of the housin The numbers of the teeth in the gears 8, 10, 11 and 12 are suitably proportioned in the present embodiment of my invention to provide a complete rotation of each blade 6 in every two revolutions 01'' the rotor, this construction and arrangement of the elements adapting the machine to receive the motive fluid through an inlet pipe 13 (see Fig. 2) during a portion of a revolution, used expansively during a second portion, forming a dead steam chamber during a third portion and exhausting during a fourth portion of such revolution through an exhaust pipe 14. As shown in Figs. 1 and 2, the housing sections are provided with annular grooves 15 and 16 forming a through *ay, within which the projecting portions of the blades move relatively to the fixed abutments 17 and 18, which are mounted in the grooves 15 and 16 intermediately of the inlet ports 10, leading from the supply pipe 13 and the outlet ports 20 leading to the exhaust pipe 14:. As shown in Fig. 4:, each of the blades comprises a cen tral block 21, which is carried by its spindle 7 and provided with oppositely projecting wings 22, which as shown in Fig. 6 are provided with curved outer edges and with profiles adapting them to substantially fit the annular grooves 15 and 10 as they revolve therethrougl'i.

The ope 'ation of this embodiment of my invention will now be understood and briefly stated is as follows, reference being had more especially to Figs. 2 and As seen in Fig.

2, each blade as it travels between theoppositely disposed fixed abutments, is caused to assume a position fiatwise, with respect to the central plane of the housing, lying in this position entirely within the rectangular recess 23 to permit it to pass without interference. As the ports 19 are continuously open, the motive fluid passes into the housing behind the blade and between it and the fixed abutment from the time it leaves the fixed abutment until the next blade cuts off the fluid in the manner to be presently pointed out. Such cut off occurs only after the blade has rotated approximately into the position shown in the upper portion of Fig. 3 which closes the compartment formed between it and the next blade in advance, while at the same time cooperating with the fixed abutment to form an expansion chamber. From an inspection of- Figs. 2 and 3 it will be seen that as each movable blade reaches the out off position, it forms with the next movable blade in advance, a dead space during approximately the next quarter of a rev-' olution of the rotor, thus forming an efiicient fluid tight packing for the blade which is exposed to the expansive force of the motive fluid. As the movement goes on, the fluid entrapped in this dead space is released in ample time to be discharged freely through the exhaust pipe 14 without creating an undue back pressure upon the rotor.'

. In the embodiment shown in Fig. 5, the rotary blades are caused to assume a position fiatwise to the central plane of the rotor at approximately each half of a revolution. By this means two fixed abutment-s not shown on the drawing are arranged at diametrically opposite points in the housing to permit the employment of an inlet pipe 24: and a discharge pipe 25 to be pumped adjacent one fixed abutment, the corresponding exhaust pipe 26 and inlet pipe 27 being arranged adjacent the opposite fixed abutment. The principle of operation of this embodiment of my invention being the same as that already described, need not be explained in greater detail.

In both adaptations of my invention shown on the drawings, certain constructional features have been embodied, but inasmuch as they are substantially similar in both embodiments, they have been fully shown in Fig.1 only. Thus the rotor com prises two disks 28 and 29, which are rigidly secured together and made fast upon the shaft 5 in any suitable manner, such as by the screws and flange abutments shown in Fig. 1. These disks are provided with out out portions adjacent their outer peripheries, which register with each other to form the rotary blade recesses 23. It will be seen that each of the spindles 7 is journaled partly in each of the disks 28 and 29, the spur gears 8 on the inner ends of said spindles being disposed in recess 30.

Upon the outer lateral face of the disk 29 is secured an annular pedestal 31, within which the radially disposed spindles 9 are journaled. For this purpose said pedestal 31 is concentrically mounted with the axis of the shaft 5.

What I claim is:

1. In a rotary engine, a stator member and a rotor member, one of said members being provided with a fixed abutmentand the other of said members being provided with a blade movable continuously at a uniform speed into and out of position forming an expansion chamber with said fixed abutment.

2. In a rotary engine, the combination with a housing provided with a fixed abutment, of a rotor provided with a rotary blade, and means for continuously rotating said blade with a uniform speed in the same direction-during the movement of said rotor.

3. In a rotary engine, the combination with a housing provided with annular grooves in opposite walls thereof, of a rotor comprising a disk centrally disposed with respect to said grooves and having blades rotatable about radially disposed axes into and out of positions closing the cross sectional area of said grooves, and means operated by the movement of said rotor for rotating said blades continuously.

4. In a rotary engine, a statorprovided with a fixed abutment, a rotor, a blade journaled on an axis extending radially of said rotor, a gear secured to said rotor and a gear mounted on said stator and geared to the gear on said blade whereby said bladeis caused to rotate continuously in the same direction by the rotation of said rotor.

5. In a rotary engine, the combination with a rotor housing provided with an annular throughway, of a rotor disk dividing said throughway into two oppositely dis: posed chambers, adjacently disposed fixed abutments in said chambers, rotary blades journaled on axes extendlng radially of said disk and in the central plane thereof, gears carried by each of said blades, a gear fixed. to said housing, and gearing operatively' connect-ing the blade gears to said fixed gear and adapted to continuously rotate said blades in the same direction when said disk is rotated.

6. In a rotary engine, a housing provided" carried by said rotor, said rotor and blades movements to periodically open and close being suitably jourlrllaled to move said blades the said throughway. along said throug way by the rotation of said rotor, and means actuated by the rota- ARTHUR CONDIT' 5 tion of said rotor for continuously rotating Witnesses:

said blades in the same direction, said blades A. O. KNIGHT, being suitably formed and adapted by their M. G. CRAWFORD.

Copies of this patent may be obtained for five cents each, by addressing the Commissioner of Patents,

Washington, D. 0."

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