Reciprocating fluid pump employing reversing polarity motor
원문보기
IPC분류정보
국가/구분
United States(US) Patent
등록
국제특허분류(IPC7판)
F04B-017/04
F04B-023/08
F04B-019/02
출원번호
US-0528766
(2000-03-17)
발명자
/ 주소
Radue, Martin L.
출원인 / 주소
BRP US Inc.
대리인 / 주소
BRP Legal Services
인용정보
피인용 횟수 :
8인용 특허 :
37
초록▼
A reciprocating pump includes a drive section and a pump section. The drive section has a reciprocating coil assembly to which alternating polarity control signals are applied during operation. A permanent magnet structure of the drive section creates a magnetic flux field which interacts with an el
A reciprocating pump includes a drive section and a pump section. The drive section has a reciprocating coil assembly to which alternating polarity control signals are applied during operation. A permanent magnet structure of the drive section creates a magnetic flux field which interacts with an electromagnetic field produced during application of the control signals to the coil. Depending upon the polarity of the control signals applied to the coil, the coil is driven in one of two directions of movement. A drive member transfers movement of the coil to a pump element which reciprocates with the coil to draw fluid into a pump chamber and expel the fluid during each pump cycle. The pump is particularly well suited to cyclic pumping applications, such as fuel injection systems for internal combustion engines.
대표청구항▼
1. A fuel injection system for an internal combustion engine, comprising:a fuel reservoir; andat least one reciprocating fuel pump assembly in fluid communication with the fuel reservoir, each of the at least one reciprocating fuel pump assemblies comprising:a housing assembly including a drive sect
1. A fuel injection system for an internal combustion engine, comprising:a fuel reservoir; andat least one reciprocating fuel pump assembly in fluid communication with the fuel reservoir, each of the at least one reciprocating fuel pump assemblies comprising:a housing assembly including a drive section and an adjacent pump section;a drive assembly disposed in the drive section, the drive assembly including a permanent magnet having a first magnetic field and a coil assembly having a winding;one of the magnet and the coil assembly being capable of reciprocal movement along an axis between a first position and a second position with respect to the other, the one forming, at least in part, a movable member;a controller capable of generating a first and a second signal;application to the winding of the first signal having a first polarity and a first amplitude generating a second magnetic field interacting with the first magnetic field to control movement of the movable member between the first position and the second position;application to the winding of the second signal having a second polarity and a second amplitude generating a third magnetic field interacting with the first magnetic field to control movement of the movable member between the second position and the first position;the first polarity being opposite to the second polarity, the first and second signals being independently alterable as a function of engine demand;a resilient member biasing the movable member in the first position; anda pump assembly disposed in the pump section, the pump assembly including a pump member capable of reciprocal movement, the pump member operatively connected to the movable member, movement of the movable member causing movement of the pump member.2. The fuel injection system of claim 1, further comprising:a first fuel pump for drawing fuel from the fuel reservoir;a separator for receiving fuel from the first fuel pump; anda second fuel pump for drawing fuel from the separator,each of the at least one reciprocating fuel pump assemblies receiving fuel from the second fuel pump.3. The fuel injection system of claim 2, further comprising:an inlet manifold receiving fuel from the second fuel pump, each of the at least one reciprocating fuel pump assemblies drawing fuel from the inlet manifold; anda return manifold for returning excess fuel from each of the at least one reciprocating fuel pump assemblies to the separator.4. The fuel injection system of claim 1, wherein the at least one reciprocating fuel pump assembly comprises a plurality of reciprocating fuel pump assemblies.5. The fuel injection system of claim 1, further comprising an injection controller to control the operation of the at least one reciprocating fuel pump assembly.6. The fuel injection system of claim 1, wherein the coil assembly surrounds the permanent magnet.7. The fuel injection system of claim 1, wherein the movable member includes the coil assembly.8. The fuel injection system of claim 1, wherein the permanent magnet comprises two permanent magnets.9. The fuel injection system of claim 1, wherein each of the at least one reciprocating fuel pump assemblies further comprises a nozzle in fluid communication with the pump assembly for expressing pressurized fluid from the pump assembly.10. The fuel injection system of claim 1, wherein the movable member and the pump member move in the same direction.11. The fuel injection system of claim 1, wherein the movable member contacts the pump member, forcing the pump member against the bias of the resilient member.12. The fuel injection system of claim 1, further comprising:a pump chamber formed in the pump section, the pump chamber having a side wall; anda fluid inlet passage disposed in the side wall of the pump chamber.13. The fuel injection system of claim 1, further comprising:a fixed member formed at least in part by the other of the magnet and the coil assembly;the movable member moving away from the fixed member when moving from the first position to the second position.14. An internal combustion engine, comprising:at least one combustion chamber; anda fuel injection system having a reciprocating fuel pump assembly associated with the combustion chamber to inject fuel therein;the reciprocating fuel pump assembly comprising:a housing assembly including a drive section and an adjacent pump section;a drive assembly disposed in the drive section, the drive assembly including a permanent magnet having a first magnetic field and a coil assembly having a winding;one of the magnet and the coil assembly being capable of reciprocal movement along an axis between a first position and a second position with respect to the other, the one forming, at least in part, a movable member;a controller capable of generating a first and a second signal;application to the winding of the first signal having a first polarity and a first amplitude generating a second magnetic field interacting with the first magnetic field to control movement of the movable member between the first position and the second position;application to the winding of the second signal having a second polarity and a second amplitude generating a third magnetic field interacting with the first magnetic field to control movement of the movable member between the second position and the first position;the first polarity being opposite to the second polarity;the first and second signals being independently alterable as a function of engine demand;a resilient member biasing the movable member in the first position; anda pump assembly disposed in the pump section, the pump assembly including a pump member capable of reciprocal movement, the pump member operatively connected to the movable member, movement of the movable member causing movement of the pump member.15. The internal combustion engine of claim 14, wherein the at least one combustion chamber comprises a plurality of combustion chambers, andwherein the fuel injection system has a plurality of reciprocating fuel pump assemblies, each of the fuel pump assemblies being associated with a combustion chamber.16. The internal combustion engine of claim 14, wherein the movable member and the pump member move in the same direction.17. The internal combustion engine of claim 14, further comprising;a pump chamber formed in the pump section, the pump chamber having a side wall; anda fluid inlet passage disposed in the side wall of the pump chamber.18. The internal combustion engine of claim 14, further comprising:a fixed member formed at least in part by the other of the magnet and the coil assembly;the movable member moving away from the fixed member when moving from the first position to the second position.
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이 특허에 인용된 특허 (37)
Heimberg Wolfgang,DEX, Circuit for driving the excitation coil of an electromagnetically driven reciprocating pump.
Binversie Gregory J. (Grayslake IL) Hall David J. (Zion IL) Tunkieicz Richard T. (Kenosha WI) Breckenfeld Paul W. (Kenosha WI), Combined fuel injection pump and nozzle.
Binversie Gregory J. ; Heimberg Wolfgang,DEX ; Holterman Theodore J. ; Irgens Christopher R. ; McGinnity Francis A. ; McDowell Philip D. ; Tunkieicz Richard T. ; Woodward Lee A. ; Hellmich Wolfram,DE, Combined pressure surge fuel pump and nozzle assembly.
Coldren Dana R. ; Ellenbecker Charles D. ; Touvelle Matthew S. ; Jaw Ching W., Control valve having a solenoid with a permanent magnet for a fuel injector.
Heimberg Wolfgang (Ebersberg DEX) Hellmich Wolfram (Munich DEX) Kogl Franz (Kaufbeuren DEX) Malatinszky Paul (Bulle CHX), Fuel injection device according to the solid-state energy storage principle for internal combustion engines.
Heimberg Wolfgang (Ebersberg DEX) Hellmich Wolfram (Munich DEX) Kogl Franz (Kaufbeuren DEX) Malatinszky Paul (Bulle CHX), Fuel injection device according to the solid-state energy storage principle for internal combustion engines.
Radue Martin L. ; Parrish Scott E. ; Peltier Daniel E. ; Hellmich Wolfram,DEX, Fuel injector for internal combustion engines and method for making same.
Karsten Kenneth S. (Bethlehem PA) Wertman Richard C. (Allentown PA), Interlocking periodic permanent magnet assembly for electron tubes and method of making same.
Gully Wilfred J. (2714 Grand Summit Rd. Torrance CA 90509) Okada Paul M. (14632 Bowling Green Westminster CA 92683), Motor driver circuit for resonant linear cooler.
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