US1295234A - Water-pump. - Google Patents

Description

0. E. SZEKELY.

WATER PUMP.

' APPLICATION FILED MAY 3.19IB. 1,295,234. Patented Feb. 25, 1919.

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WATER PUMP.

APPLICATION FILED AY 3. ms.

1 ,295,234. Patented Feb. 25, 1919.

3 SHEETS-SHEET 2- 0. E. SZEKELY.

WATER PUMP.

APPLICATION FILED MAY 3. 1918.

1,295,234. Patented Feb. 25, 1919.

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OTTO E. SZEKELY, OF ROCK ISLAND, ILLINOIS, ASSIGNOR 'I'O VELIE MOTORS CORPO- RAMON, OF MOLINE, ILLDNOIS, A CORPORATION OF ILLINOIS.

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specification of Letters Patent.

Patented Feb. 25, 191 .9.

Application filed May 3, 1918. Serial No. 232,321.

To all whom it may concern:

Be it known that l, O'rro E. Sznnnnr, a citizen of the United States, and a resident of Rock Island,in the county of Rock Island and State of Illinois, have invented certain new and useful Improvements in Water- Pumps, of which the following is a specification.

My invention relates to an improved water pump which can beeasily and readily attached to automobile engines for the purpose of circulating the engine cooling water.

In prior arrangements pumps have been provided to be connected to be driven at considerable speed, such pumps being small and usually of the cylinder type. In its travel through the radiator tubing and the engine water jacket passageways the cooling water encounters many obstacles and resistance and where the pump is driven at high speed the water pumped thereby will not flow uniformly through the various passageways, but the flow will be more or less impulsive or vibratory. The water will not have a chance to eficiently absorb heat nor will the radiator have a chance to emciently dissipate heat.

The object of my invention is to provide a larger pump which can be connected with so the engine to be driven at slower speed so that the water flow through the circulatory system will be uniform and the water is given a chance to absorb the heat from the engine and to dissipate the heat during flow 85 through the radiator. This uniform circulation of the water will also permit thermosiphon circulation, that is, the upward flow of heated water and the downward flow of cooler water. Another object of the inso vention is to produce a simple compact pump structure which can be easily" andquickly attached to or removed from the engine structure, provision being made to connect the pump shaft directly with the engine cam at shaft.

The above and other features of my invention are embodied in the structure disclosed on the accompanying drawings, in which- Figure 1 is an end view of part of an engine structure showing my improved pump applied thereto,

Fig. 2 is a sectional view on plane 22, Fig. 1, 4

Fig. 3 is a sectional view on plane 3 -3,

Fig. 2, and

Fig. 4 is a sectional view on plane 4-4, Fig. 3.

E represents the cylinders and C the crank case of the engine housing. 10 is the crank shaft which is journaled at one end in the bearing frame 11. 12 is the cam shaft parallel with the crank shaft and journaledin the frame 13. Adjacent the bearing frame 11 is the gear pinion 14 which meshes with the gear 15 secured to the end of the cam shaft by means of screws 16 passing through the hub of the gear 15. The cover 17 is secured to the fiange18 ofthe engine housing by means of screws 19 and closes the end of the crankcase and surrounds the gears 14 and 15, the cover having the outlet 20 for the crank shaft end which supports the crank socket 21. Outside of the driven directly by the cam shaft. The

pump structure comprises a circular pump body 23 having the annular water compartment 24 from which the outlet ipe 25 ex tends tangentially to be coupled at its end to a pipe 26 which extends to the top of the vehicle radiator. The cover or cap 27 is secured to the pump body by screws 28 and at the center of this cover is the enlargement 29 from which the pipe'30 extends to j shaft 33, a stuifing cap 34 being provided.

Inside ofthe pump the shaft supports the pump wheel w. This wheel comprises the hub 35 which supports the circular disk 36 from which the vanes or blades 37 extend laterally. The back of the disk 36 bears Iagainst the pump body inner wall and the ades bear, at their outer edges against the cover 27. The blades are inclined at suitable angle with reference to the wheel radius depending upon the volume of flow desired, water being drawn into the chamber 31 through the pipe 30 and being expelled by the blades into the annular pump chamber 24 and from thence through the pipie 25 to the radiator.

he pump body has arms 38 and 39 extending radially and laterally therefrom, these arms having the slots 40 and 41 at their ends for receiving the bolts 42 and 43 which thread into the engine housing cover 17 or extend entirely through the cover to thread also into the flange 18. The shaft 33 terminates at outer end in a flange 44 which has openlngs for receiving the screws 16 in order that the flange may be secured to the 'cam shaft in common with the gear 15 to support the pump shaft 33 in axial alinement wit the cam shaft. To accommodate the the pump shaft, the cover 17 is provided with the bearing hub 45 having thegroove 46 therein for receiving packing 46.

When the pump is to be applied, the cover 17 is removed and the ump shaft secured to the cam shaft, and t e cover 17 then replaced. The pump frame is then secured by means of the bolts 42 and 43 and the pump wheel applied to the pump shaft and the pump frame cover 27 secured in place. To prevent binding of the shaft 33 suflicient lost motion is provided between the. bolts 42 and 43 and the supporting arms 38 and 39 to permit shifting of the pump frame and self centering thereof with reference to the shaft 33 as the pump is operated' As shown, the enlarged shank sections a of the screws 42 and 43 are of slightly less diameter than the width of the slots 40 and 41 and the length of the shank sections is a trifle greater than the thicknem of the arms 38 and 39. The slots are also of suflicient depth to leave clearance space Between their bases and the enlarged shank sections. This arrangement will permit suflicient play of the pump frame after the screws 42 are turned down tight and the pump frame can therefore readily center itself to prevent binding of the pump shaft 33 thereinthe proper volume of cooling water and will cause steady and uniform flow of the water through the various passageways of the cooling circulatory system and at a proper ve-.

locity to permit the water to efliciently takeup heat from the engine and give the radiaitor a chance to radiate the heat. I have found that my pump will keep the cooling water at a substantially constant temperature irrespective of the speed at which the engine is running, for at any speed of the engine the flow of cooling water will be steady and uniform. In prior arrangements the higher theengine speed the more rapid the water pulsations and the less the cooling efliciency will be.

I do not desire to be limited to the exact construction, arrangement and operation shown and described as it is no doubt possible to make changes and modifications which would still come within the scope of the invention.

, I claim as follows:

1. The combination with a gas engine having a crank shaft and a valve controlling cam shaft driven by the crank shaft, and a housing for said shafts, of a pump shaft extending axially from said cam shaft through said housing, a pump frame detacha'bly secured to said housing,- a pump wheel for the pump secured to the pump shaft, said pump having an inlet and an outlet adapted for connection with the cooling water circulatory system for the engine.

2. The combination with an engine having a shaft, a housing for the shaft, an extension on said shaft extending axially therefrom through said housing, a pump frame receiving said shaft extension, a pump Wheel within the pump frame secured to the shaft extension to rotate therewith, means for supporting said pump frame on the outside of said housing, said supporting means permitting limited movement of said pump frame to center itself with reference to the pump shaft during rotation thereof, and a fluid inlet and outlet for said frame.

" 3. The combination with a gas engine having a crank shaft and a cam shaft, a gear on said crank shaft and a gear on said cam shaft, said gears intermeshing to transmit rotation from one shaft to the other, a housing. inclosing said gears, a rotary pump frame detach-ably secured to said housing concentric with said cam shaft, a pump shaft detachably secured to said cam shaft gear to be coaxial with said cam shaft to rotate therewith, a pump piston member sean outlet for said pump frame.

4. The combination with a gas engine having a crank shaft and a cam shaft, a gear on said crank shaft, a gear secured by its hub to the endof said cam shaft, said gears intermeshing, a housing for said gears, an opening in said housing opposite the cam shaft end, of a pump comprising a pump frame detachabiy secured to said housing,

and a pump shaft extending through said housing opening and detachably secured to said cam sh aft gear hub concentric with said cam shaft.

In Witness whereof I hereunto subscribe my name this 20th day of April, A. D. 1918,

OTTO E. SZEKELY.

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