US1943034A

US1943034A - Double acting pump cylinder

Info

Publication number: US1943034A
Application number: US469956A
Authority: US
Inventors: Philip A Myers
Original assignee: FE Myers and Bro Co
Current assignee: FE Myers and Bro Co
Priority date: 1930-07-23
Filing date: 1930-07-23
Publication date: 1934-01-09
Anticipated expiration: 1951-01-09

Description

Jan. 9, 1934. P. A. MYERS DOUBLE ACTING PUMP CYLINDER Filed July 25, 1930 3 Sheets-Sheet 1 2 INVENTOR A TTORNE Y ukv? I P: j J aid IT a 4 z Jan. 9, 1934. P. A. MYERS DOUBLE ACTING PUMP CYLINDER Filed July 23, 1930 3 Sheets-Shem; 3

Patented Jan. 9, 1934 UNITED STATES DOUBLE ACTING PUllIP CYLINDER Philip A. Myers, Ashland, Ohio, assignor to The F. E. Myers & Bro. Company, Ashland, Ohio, a

corporation of Ohio Application July 23, 1930. Serial No. 469,956

5 Claims. (01. 103-187) It is the object of my invention to provide a double acting pump cylinder.

It is my object to provide a double acting pump cylinder which will largely increase the amount of water delivered for a given size of pumping equipment.

It is an object to arrange all the parts so that they move in a straight line and to provide working apparatus which can be removed to .the surface by pulling on the sucker rod. My invention lends itself to the various diameter sizes and has liberal water ways so that there is no undue friction.

In particular, it is my object to provide the combination of a well casing, a movable cylinder, a stationary tube projecting into the cylinder supporting a stationary bucket, such cylinder being supported by the casing and having a suitable valve for controlling the delivery of fluid thereto from the well, and a valve associated with the movable cylinder for controlling the exit of fluid therefrom.

In particular, it is my object to provide an upper bucket with the traveling cylinder and a stationary tube delivering into the cylinder hav ing a stationary bucket thereon acting as a piston in the cylinder; and the cylinder acts as a piston in the well casing. v

Referring to the drawings, Figure 1 is a section through the lower end of the casing and the mechanism therein which is the object of this invention, the parts in Figure 1 being positioned at the lowest point on the up-stroke.

Figure 2 is a section on the line 2-2 of Figure 1.

Figure Figure 1.

Figure 4 is a section on the line 4-4 of Figure 1. a

Figure 5 is a section similar to Figure 1 showing the parts with the plunger at its highest point and with the relief valve open, it being understood that the opening of the relief valve is not normal but only in case of the necessity for relief of any accumulated fluid in the cylinder below the valve.

Figure 6 is a View similar to Figiu'e 1 showing the parts enlarged for the purpose of clarity.

Figure '7 is a similar view of the lower end of Figure 1 with the parts enlargedv Figure 8 is view of the parts as in Figure 5, enlarged at the upper end of the view.

Figure 9 is a similar view of the lower end of the view.

Referring to the drawings in detail, 1 is a cas 3 is a section on the line 3-3 of ing which is cylindrical throughout its length but at its bottom has a tapered portion 2 which supports a tapered collar 3 upon which is exteriorly threaded the bail or cage having a lower collar 4, spaced arms 5 and an upper collar 6. 0 To the upper end of this bail collar 6 is threaded a stationary tube '7. Within the collar 3 is a passageway 8 closed by the check valve 9 within the cage or bail. Such check-valve carries the uprights 10 and collar 11 within which is located 5 the helical seating spring 12.

The junction between the collar 3 and the casing 1 is sealed by the washer 13.

The stationary tube '7 empties into the space A between the open end of the tube '7 and the bottom of the bucket 14 in a space formed by the moving cylinder 15 which is attached to the bucket 14 and travels with it. The lower end of this space is formed by the stationary bucket 16. There is a space B between the lower end of the bucket 16 and the top of the moving bucket 1'7 carried by the lower end of the cylinder 15, which bucket carries a washer 18, sealing it with respect to the stationary tube '7.

Any accumulation of fluid in the space B is so relieved through the ports 19'- in the stationary bucket 16, which ports are normally closed by a quick acting check-valve 20 seated by the spring 21.

The space below the bucket 18' and above the check-valve 9 is' designated C.

Returning to the upper bucket 14, it is provided with washers 22 for sealing the bucket with respect to the casing 1. The bucket also carries a cage or bail 23 with spaced arms 24 within which operates the check valve 25 under the influence of the spring 26 for controlling the exit of fluid from the passageway A into the space D.

The sucker rod 27 reciprocates the sucker rod bucket 14, the upper bucket, the cylinder 15 and the cylinder bucket 17. When it is desired to pull the entire apparatus from the well, it is observed that by a continued pull on the sucker rod 27, all the apparatus involved herein canbe re moved by the upward swing movement oi the sucker rod.

Opemtion.--In operation, the upward movement of the sucker rod will draw water through the passageway 8 from the well beneath the valve 9 which is lifted by the suction into the space C and likewise into the tube *1. At the same time the sucker rod bucket 14 which has its valve 25 closed. is elevating the liquid in the space D upwardly and out oi. the pump. On. the downstroke of the pump, the check-valve 9 is closed and the descent of the bucket 18 on the cylinder serves to force the liquid from the chaniber C through the pipe 7 into the space A and the bucket on the tube '7 supports the water as the bucket 14 approaches it so that the water is discharged under the valve 25 which is thereby lifted and the Water enters the area D.

It will be noted that the space C is the full capacity of the diameter of the casing 1, less the space required for the stationary tube 7, so that on the down'stroke the water in the space C is discharged in that amount less the space occupied by the tube as compared with what the upper bucket 14 discharges on the up stroke. The relief valve 20 can be quickly closed or opened, as will be noted from the construction employed.

When the cylinder is descending, the water is driven out of the space below the cylinder and out of the cylinder top with fluid in the cylinder that is also driven out of the top of the cylinder.

It will be understood that any type of valve mechanism may be used as I have only shown a typical form.

It will be understood that I desire to comprehend within my invention such modifications as may be clearly embraced within the scope of my claims and invention.

Having thus fully described my invention, what I claim as new and desire to secure by Letters Patent, is: Y

1. A double acting pump consisting of a casing, a movable cylinder having a valve at the top and packing to seal said cylinder from the casing, a stationary tube, stationary sealing means for sealing the chamber above said tube from the space below and outside of said tube, and passageways extending through said sealing means, check valve means for closing said passageways whereby leakage liquid collected around said tube is forced upward through said passages to said chamber, the bottom of the cylinder having a bucket having a sliding fit with the outside of the tube, an inlet from the bottom of the well, said inlet being located below the cylinder and communicating with the space below the cylinder and with the tube which extends up through said bucket, and a valve located in the outlet, below the end 'of the cylinder.

2. A double acting pump consisting of a casing, a pump rod reciprocable in the casing, said rod having a connection with a lifting piston reciprocable in said casing, a passageway extending through said piston, a valve in said passageway, a cylinder attached to said lifting piston, a stationary collar mounted insaid casing below the lower end of said cylinder, a passageway extending through said collar, a valve in said passageway, a stationary tube mounted above said valve on said collar and extending up within the interior of said cylinder, a passageway above said valve communicating with the space below the end of said cylinder and another passageway above said valve communicating with the in-- terior of said tube, a bucket on the lower end of said cylinder connecting the space between the end of said cylinder and said tube, said bucket constituting the head of a force pump and adapted to force liquid located below said bucket through said passageways and into the space above the tube, and stationary sealing means for sealing the space above said ,tube from the space below and outside said tube, a passageway extending through said sealing means and check valve means for closing said passageways whereby leakage liquid collected around said tube is forced upwardly through said passageways when said bucket moves in an upward direction.

3. A doubling acting pump consisting of a casing, a pump rod recip'rocable in the casing, said rod having a connection at its lower end with a lifting piston also reciprocable in said casing, a passageway extending through said piston, a valve in said passageway, a cylinder attached to said piston, a stationary tube mounted in said casing below the lower end of said cylinder, a passageway extending through the interior of said tube, a valve located in said casing below said tube, there being passageways above said valve communicating with the space below the end of the cylinder and with the interior of said tube, a bucket on the lower end of said cylinderbridging the space between the end of the cylinder and said tube, stationary sealing means for sealing the space above said tube from the space below and outside of said tube, a passageway extending through said sealing. means, check valve means for closing said passageway whereby liquid collected between the tube and cylinder is forced upwardly through said passages to said upper space when said cylinder moves upwardly, said bucket constituting the head of a force pump to force liquid located below said bucket into and through the interior of said tube and into the space above said lifting piston.

4. A double acting pump consisting of a casing, a pump rod reciprocable in the casing, said rod having a connection at its lower end with a lifting piston also reciprocable in said casing, a passageway extending through said piston, a valve in said passageway, a cylinder attached to said 110 piston, a stationary tube mounted in said casing below the lower end of said cylinder, a passageway "extending through the interior of said tube, a

valve mounted on a stationary collar fixed to said casing andlocated below said tube, there being passageways above said valve communicating with the space below the end of said cylinder and with the interior of said tube, a bucket on the lower end of said cylinder bridging the space between the said cylinder and said tube, scaling means for sealing the space above said tube from the space below and outside of said tube, a passageway extending through said sealing means, check valve means for closing said passageway whereby liquid collected between the tube and cylinder is forced upward through said passageway to the space above said tube, said bucket constituting the head ofa force pump toforce liquid located below said bucket into and through the, interior of said tube and 'into the space above said tube upon downward movement of said bucket.

5. A double acting pump consisting of a casing, a pump rod reciprocable in the casing, said rod having a connection at its lower end with a lift- 2 ing piston also reciprocable in said casing, a passageway extending through said piston, a; valve in said passageway, a cylinder attached 'to said lifting piston, a stationary tube mounted in said casing below the lower end of said cylinder, a passageway extending through the interior of said tube, a valve located in said casing below said tube, a passageway above said valve com municating with the space below the end of the cylinder and with the interior of said tube, a bucket on the lower end of said cylinder substantially bridging the space between the said casing and said tube, a second bucket for closing the space above said tube from the space below and outside of said tube, a passageway extending through said second mentioned bucket, a. check valve, means for closing said passageway whereby liquid collected between the tube and cylinder and below said second mentioned stationary bucket is forced upwardly through said passageway to the space above said second mentioned