[특허]Linear motor-pump assembly and method of using same

Linear motor-pump assembly and method of using same 원문보기

IPC분류정보
국가/구분	United States(US) Patent 등록
국제특허분류(IPC7판)	F04B-017/04 F04B-035/04
출원번호	US-0760748 (1991-09-16)
발명자 / 주소	Bolding Vance E. (Chino Hills CA) Stiebel John S. (Washington DC) Unmack Frank L. (La Mesa CA)
출원인 / 주소	Uniflo Oilcorp Ltd. (La Mesa CA 02)
인용정보	피인용 횟수 : 24 인용 특허 : 0

초록 ▼

A new and improved linear motor-pump assembly and method of using it for downhole use. The assembly includes a cartridge unit with a linear motor attached threadably between a discharge housing assembly adapted to be secured removably to a cable for hoisting the cartridge unit through the production tubing of a well and a suction housing assembly for facilitating the pumping of well fluids from a downhole well. The linear motor includes a mover adapted to engage threadably a stop valve for permitting one-way flow of fluid through the mover and into the discharge housing for discharge into the production tubing. For increased pumping efficiency, the suction housing and check valve are replaceable with a lifting pump and piston respectively. Thus, the assembly is usable in both shallow and deep wells.

대표청구항 ▼

A linear motor-pump unit, comprising: elongated annular containment means for defining a path of travel; stator means surrounding said containment means for establishing a series of spaced apart electromagnetic fields along aid path of travel; said stator means having a very small transverse thickness to axial length ratio and including annular core means for defining a plurality of spaced-apart coil receiving slots, and coil means for producing said series of spaced apart electromagnetic fields, said fields extending at least partially in an axial direction when energized with an electric current; said coil means including a plurality of individual annular-shaped coils disposed individually within said slots; suction chamber means coupled to one terminal end of said stator means for defining a fluid receiving chamber having fluid inlet means for receiving fluids therein; discharge chamber means coupled to the other terminal end of said stator means for defining a fluid discharge chamber having outlet means for discharging fluids therefrom; mover means mounted telescopically within said stator means for interacting electromagnetically with said electromagnetic fields to urge said mover means reciprocatively along said path of travel; said mover means including a hollow elongated fluid receiving tube member extending between and into said fluid receiving chamber and said fluid discharge chamber for enabling said chambers to be in fluid communication; a plurality of annularly-shaped permanent magnets mounted externally on said tube member in an axially spaced apart manner for generating magnetic fields extending at least partially in an axial direction opposed to the fields produced by said coil means when individual ones of said magnets are disposed in opposition to corresponding individual ones of said coils to urge said mover means to produce relative movement between said stator means and said mover means; a plurality of thin annularly-shaped spacers mounted on said tube member interleaved with said magnets for shunting a portion of said magnetic fields produced by said magnets to reduce substantially core flux losses in said core means; valve means for establishing one-way flow of fluid into said tube member; said tube member including mounting means for receiving said valve means thereon to permit said valve means to travel within said fluid receiving chamber and to permit fluids received within said fluid receiving chamber to flow into said fluid discharge chamber as said mover means travels along said path of travel towards said fluid inlet; and wherein said mover means further includes a plurality of bearing means for engaging said containment means to help facilitate the unimpeded reciprocative movement of said mover means as it is urged along said path of travel.

이 특허를 인용한 특허 (24)

Larson ; Jr. Carl O. (Stonington CT) Smith James S. (Old Lyme CT) Chapman John H. (Groton CT) Slimon Scot A. (Mystic CT) Trahan John D. (N. Stonington CT) Brozek Robert J. (Bridgewater NJ) Franco Alb, Artificial heart and method of maintaining blood flow.
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Howard, William F., Double-acting reciprocating downhole pump.
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Howard,William F., Double-acting reciprocating downhole pump.
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Heimberg, Wolfgang, Fuel injection device for internal combustion engines.
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Lake, Gary; Ranjan, Priyesh; Wilson, Kenneth; Rainone, Michael; Grisham, Phillip; Sackett, Samuel, Hold open configuration for safety valve and method.
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Van De Velde, Peter; Esplin, Gordon, Hydraulic fluid control system for a diaphragm pump.
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Larson ; Jr. Carl O. ; Smith James S. ; Chapman John H. ; Slimon Scot A. ; Trahan John D. ; Brozek Robert J. ; Franco Alberto ; McGarvey John J. ; Rosen Marvin E. ; Pasque Michael K., Implantable device monitoring arrangement and method.
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Ding, Yuqing; Levan, M. Douglas, Magnetic pumping system.
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Burd, James A.; Corwith, Jeffrey R.; Lynch, Keith W., Method and apparatus for enhancing oil recovery.
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Bolding Vance E. ; Hallidy William M., Modular linear motor and method of constructing and using same.
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Feng, Chunguo; Liu, Zhongya, Numerically controlled reciprocating submersible pump apparatus.
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Lake, Gary; May, Michael J.; Ranjan, Priyesh; Murray, Douglas; Rainone, Michael; Sackett, Samuel; Presley, Talbot, Permanent magnet linear motor actuated safety valve and method.
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Babicki, Matthew; Noble, Steven, Positive displacement pump with a working fluid and linear motor control.
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Larson ; Jr. Carl O. (Stonington CT) Smith James S. (Old Lyme CT) Chapman John H. (Groton CT) Slimon Scot A. (Mystic CT) Trahan John D. (No. Stonington CT) Brozek Robert J. (Bridgewater NJ) Franco Al, Reciprocating pump and linear motor arrangement.
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Larson ; Jr. Carl O. ; Smith James S. ; Chapman John H. ; Slimon Scot A. ; Trahan John D. ; Brozek Robert J. ; Franco Alberto ; McGarvey John J. ; Rosen Marvin E. ; Pasque Michael K., Reciprocating pump with imperforate piston.
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Kottke William Curtis, Reciprocating pumps with linear motor driver.
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Kottke William Curtis, Reciprocating pumps with linear motor driver.
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Kottke, William Curtis, Reciprocating pumps with linear motor driver.
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Howard, William F., Submersible electric pump.
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Lake, Gary B.; Anderson, David Z.; Peoples, Brock A.; Roberts, Tyler, Subsurface safety valve and method of actuation.
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Lake, Gary B.; Burris, John E.; Anderson, David Z.; Peoples, Brock A.; McDaniel, Robert G.; Tompkins, Charles M.; Thompson, Grant R., Subsurface safety valve and method of actuation.
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Larson ; Jr. Carl O. (Stonington CT) Smith James S. (Old Lyme CT) Chapman John H. (Groton CT) Slimon Scot A. (Mystic CT) John Trahan D. (No. Stonington CT) Robert J. Brozek (Bridgewater NJ) Franco Al, Surgically implantable power supply.
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Larson ; Jr. Carl O. (Stonington CT) Smith James S. (Old Lyme CT) Chapman John H. (Groton CT) Slimon Scot A. (Mystic CT) John Trahan D. (No. Stonington CT) Brozek Robert J. (Bridgewater NJ) Franco Al, Surgically implantable pump arrangement and method for pumping body fluids.
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Lake, Gary B.; Anderson, David Z.; Bane, Darren E.; Jackson, Aaron T., Tubing pressure insensitive actuator system and method.
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