US764156A

US764156A - Hydraulic-motor pump.

Info

Publication number: US764156A
Application number: US17039103A
Authority: US
Inventors: Ira H Spencer
Original assignee: ORGAN POWER Co
Current assignee: ORGAN POWER Co
Priority date: 1903-08-22
Filing date: 1903-08-22
Publication date: 1904-07-05
Anticipated expiration: 1921-07-05

Description

PATENTED JULY 5, 1904.

I. H. SPENCER.

HYDRAULIC MOTOR PUMP.

APPLICATION FILED AUG. sa. 1903.

2 SHEETS-SHEBT `1.

PATENTED JULY 5*, 1904.

I. H. SPENCER.

HYDRAULIC MOTOR PUMP.

APPLICATION FILED AUG. 22, 1903.

2 SHEETS-SHEET 2,

N0 MODEL.

/ IIIIIIIIIII" No. 764,156. p Patented July 5, 1904.

UNITED STATES PATENT EEicE..

IRA H. SPENCER, OF HARTFORD, CONNECTICUT, ASSIGNOR TO THE ORGAN POVER COMPANY, INCORPORATED, OF HARTFORD, CONNECTICUT, A CORPORATION OF CONNECTICUT.

HYDRAULIC-MOTOR PUMP.

SPECIFICATION forming part of Letters I'atent No. 764,156, dated July 5, 1904.

Application filed August 22, 1903. Serial No. 170,391. (No model.)

T all' 107mm/ "my COW/GWW The pump-cylinder 1 is a section of a tube Be it known that I, IRA H. SPENCER, a citiheld between the base 2 and the pump-valve 50 Zen of the United States, residing at Hartford, case 3, and the motor-cylinder 4 is a section in the county of Hartford and State of Conof a tube of the same diameter held between 5 necticut, have invented certain new and useful the pump-valve case and the motor-valve head Improvements in Hydraulic-Motor Pumps, of 5. Bolts 6 extend from flanges projecting which the following is a specification. from the valve-head to threaded sockets in 5 5 This invention relatesto a hydraulic-motor the base for holding these parts together. pump which has a primary valve that is ac- The pump-piston 7 in the pump-cylinder is IO tuated by the movement of the motor-piston rigidly connected with a motor-piston 8 in the and a secondary valve surrounding the primotor-cylinder by a rod 9, that is suitably mary valve, that is actuated by the pressure packed where it passes through the parts of 60 of the water accordingto the position of the the pump-valve case which form the ends of primary valve for directing the iiow of water the pump-cylinder and the motor-cylinder.

to the motor-piston. The suction-valve 10 on one side and the dis- The object of this invention is to 'provide a charge-valve 11 on the other side are arranged simple, durable, powerful, and compact conin the pump-valve case so that they may be 65 struction having the primary valve, the secremoved at any time by unscrewing the plugs ondary valve, and the water ports and pas- 12, which support the valve-stems.

2O sages so arranged with relation to each other The motor-cylinder-valve-head hasabonnet that the primary valve has a long movement, 13 at the top and a bonnet 14 at the bottom, whereby the secondary Valve, which has a that extends into the motor-cylinder. 7O short movement, may have a long time in The inlet 15 opens through one side of the which to reverse, thus allowing the motorhead and is in communication with the annupiston to take a full stroke without danger lar chamber 16. The outlet 17 opens through that it will strike the end of the cylinder and the other side of the head and is in communiinsuring a uniform and smooth action of the cation with two annular chambers 18. Be- 75 parts. tween the inlet-chamber 16 and the outlet- The machine shown as embodying the inchambers 18 are intermediate annular chamvention has a pump -cylinder containing a

bers

19 and 20.

pump -piston, a valve -case containing pump In-the head and extending from one bonnet suction and discharge valves, a superimposed to the other, so as to line the annular inlet, 8O motor-cylinder containinga motor-piston that outlet, and intermediate chambers, is a tube is rigidly connected with the pump-piston, 21. Perforations are made through the linand a head at the 'upper end of the motoring-tube opposite the inlet-chamber, the outcylinder provided with the necessary water let-chambers, and the intermediate chambers. ports and passages and containing a freely- The secondary valve, that is movable in the 8 5 movable tubular secondary valve in the cenhead, has a tubular body 22, with four cupter of which is a double-piston primary valve shaped packings that fit the lining-tube. The

that has a rod which is arranged to be engaged upper and lower packings 23 face outwardly,`

with and moved by the motor-piston. and they two intermediate packings 24. face in- Figure 1 of the accompanying drawings wardly. The opening through the body is 90 shows a vertical section of this machine. Fig. closed at the ends by caps 25. 2 shows a sectional view of the cylinders and Between the two upper packings is an anvalve-head on a plane at right angles to the nular space 26, which is in communication p plane of Fig. 1. Fig. 3 shows asectional View, with the annular chamber 27, that is connecton larger scale, of thcvalve-head and the pried by a passage 28 with the upper end 'of the 95 mary and secondary valves. opening in the body. Between the two lower packings is an annular space 29, which is in communication with an annular chamber 30, that by a passage 31 is connected with the lower end of the opening in the body. The annular space 32-between the intermediate packing's is in communication with the opening in the body at the middle.

The annular' chamber 20 is connected by a passage 33 with the upper end of the opening' in the motor-cylinder, and the annular space 19 is connected by a passage 34 with the upper end of a tube 35, which is held between the head and the valve-case and communicates with the lower end of the opening in the motor-cylinder, Fig. 2. Perforations 36 are made through the body from the interior to the eX- terior between the middle and the upper end, and perforations 37 are made through the body from the interior to the exterior between the middle and the lower end.

Movable in the central opening in the body is the primary valve, which has oppositelyfacing cup-packing's 38, which are held separated by a sleeve 39 upon a rod 40, that eX- tends through the lower bonnet, and has ahead 41 in an opening' in the i'od that connects the motor-piston and the pump-piston, Fig. 1.

When the secondary valve is in its lowest position, water under pressure enters the annular space 32 between the intermediate packings and passes through the chamber 2O and passage 33 to the upper end of the motor-cyl- -inder and forces the motor-piston downwardly.

The water-pressure is exerted equally in opposite directions upon the intermediate packings of the secondary valve and also enters the opening in the center of the body and is eX- erted equally in opposite directions between the packings of the primary valve. l/Vhen the secondary valve is in its lowest position, water under pressure, that enters the opening' in the center of the body, passes through the upper perforations 36 and holds the secondary valve down. Vhen the motor-piston is going' downwardly, the lower part of the motor-cylinder exhausts through the tube 35 and passage 34 to the annular chamber 19, which is in communication with the outlet through the space 26 and chamber 18. At all times the annular spaces 26 and 29 are in communication with the annular outlet-chambers 18, allowing water to exhaust from above and below the packings of the primary valve. As the motor-piston nears the lower limit or' its nievement it engages the head of the primary-valve rod and draws down the primary valve. When the primary valve has been di'awn way down, thc upper packing 38 is cari'ied below .the upper perforations 36 and the lower packing 38 is cari'ied below the lower perforations 37, so that the water in the head above the secondary valve is allowed to escape through the upper perfor-ations 36, passage 28, and space 26 to the outlet, while the water under pressure between the packings of the primary valve passes through the lower perforations 37 and lifts the secondary valve. When the secondary valve has reached the upward limit of its movement, the space 32 is in communication with the chamber l9-that is, in communication with the lower end of the motor-cylinder-so that pressure will be exerted upwardly on the motor-piston. At this time the water undei' pressure above the motor-piston escapes through the passage 33 and space 29 to the outlet. The space 32 between the intermediate packings of the secondary valve is always in communication with the inlet-passage, and the spaces 26 and 29 are always in communication with the outlet-chambers 18. /Vhen the motor-piston nears the upward limit of its movement, the primary-valve rod is engaged and moved upwardly, so that the space below the secondary valve is opened to the outlet and the space above the secondary valve is opened to the inlet, causing the secondary valve to change and the pressure on the motor-piston to be reversed.

The cup-packings of the primary valve are placed a considerable distance apart, so that the primary valve will have a long slow movement each side of the upper and

lower perforations

36 and 37, and these perforations of course must be such a distance apart that they open from-the interior tothe secondary valve. This allows the secondary valve to move slowly and uniformly in changing its position before the motor and pump pistons reach the limits or' their movements. A hydraulicmotor pump constructed in this way operates easily and smoothly without pounding'. It is sure in action and durable in use, and it does not clog or become choked with sediment.

The invention claimed is l. A hydraulic-motor pump consisting of a pump-cylinder containing a pump-piston, a motor-cylinder containing' a motor-piston, a valve-head having an inlet communicating with an annular chamber, an outlet communieating with two annular chambers, intermediate chambers between the inlet-chamber and the outlet-chambers, a perforated tube lining' the chambers, bonnets attached to the ends of the head, a tubular secondary valve loosely litting the lining-tube and having two inwardlyfacing cup-packings near the center and two outwardly-facing cup-packings near the ends, a middle annular space that is always in communication with the inlet and two outer annular spaces that ai'e always in communication with the outlet, passages connecting the outer annular spaces with the ends of the opening' in the valve-body, perforations connecting the opening in the valve-body with the middle annular space, pcrforations connecting thc opening in the valve-body with the chambers in the lining-tube beyond the outer cup-packings, caps closing the ends of the opening in the valve-body, a primary valve movable in the opening' and having two cup-packings fac- IOO IIO

ing each other' at considerable distance apart and a rod extending' from the primary valve into a position to be engaged with and moved by the motor-piston, substantially as speciiied. 2. A hydraulic-motor pump having a base with an upwardly-extending ange, a pumpcylinder with its lower end resting upon the base within the ange, a pumpevalve case with a downwardly-extending iiange fitting' the upper end of the pump-cylinder and having an upwal'dly-extending iange, a motor-cylinder with its lower end resting' upon the pumpvalve case within the flange, a valve-head with a downwardly-extending flange resting upon the top of the motor-cylinder, flanges extending' outwardly from the valve-head, bolts extending' from the flanges on the valve-head to the base and holding the base, pump-cylinder, valve-case, motor-cylinder and valve-head tog'ether, a pump-piston in the pump-cylinder, suction and discharge valves in the valve-case, a motor-piston in the motor-cylinder and connected with the pump-piston, a tubular secondary valve in the valve-head, a piston primary valve movable in the secondary valve, and a rod connecting the primary valve with the motor-piston, substantially as specifled.

3. A valve-head having' an inlet communicating' with an annular chamber, an outlet commuuicating with two annular chambers, intermediate chambers between the inlet-chamber and the outlet-chambers, aperforated tube lin-` ing' the chambers, bonnets attached to the ends of the head, a tubular secondary valve loosely fitting' the lining-tube and having two inwardly-facing cup-packings near the center and two outwardly-facing cup-packing's near the ends, a middle annular space that is always in communication with the inlet and two outer annular spaces that are always in communication with the outlet, passages connecting the outer annular spaces with the ends of the opening in the valve-body, perforations connecting the opening in the valve-body with the middle annular space, perforations connecting the opening in the valve-body with the chambers in the lining-tube beyond the outer cup-packings, caps closing the ends of the opening in the valve-body, a primary valve movable in the opening and having two cuppackings fac` ing each other at considerable distance apart and a rod extending from the primary valve,

substantially as speciiied.

IRA H. SPENCER.

l/Vitnesses:

H. R. WILLIAMS,

ETHEL M. LOWE.