Fuel injector driver circuit with energy storage apparatus

Details Fuel injector driver circuit with energy storage apparatus Fuel injector driver circuit with energy storage apparatus

2007-10-30

2007-10-30

Rodriguez, William H. (Department: 3746)

Pumps

Motor driven

Electric or magnetic motor

C417S053000

Reexamination Certificate

active

10675609

ABSTRACT:
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 by a reciprocating circuit 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. The reciprocating circuit employs a storage capacitor and several switches to capture the energy of the reciprocating coil as the pump is driven downwardly. The charge is recycled as the capacitor dissipates, thereby reversing the polarity of the current through the coil and driving the coil assembly upwardly to its initial position. 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.

REFERENCES:
patent: 3913536 (1975-10-01), Lapple et al.
patent: 4264849 (1981-04-01), Fleischer et al.
patent: 4682801 (1987-07-01), Cook et al.
patent: 4787823 (1988-11-01), Hultman
patent: 4841165 (1989-06-01), Bowles
patent: 4884954 (1989-12-01), Van Niekerk
patent: 5267344 (1993-11-01), Nelson, III
patent: 5518372 (1996-05-01), Chin
patent: 5558068 (1996-09-01), Kunishima et al.
patent: 5602505 (1997-02-01), Antone
patent: 5620311 (1997-04-01), Wetzel
patent: 5895207 (1999-04-01), Burgdorf et al.
patent: 5947702 (1999-09-01), Biederstadt et al.
patent: 6078118 (2000-06-01), Reinartz et al.
patent: 6148800 (2000-11-01), Cari et al.
patent: 6179580 (2001-01-01), Huber et al.
patent: 6182350 (2001-02-01), Iwata et al.
patent: 6196812 (2001-03-01), Siegel
patent: 6202615 (2001-03-01), Pels et al.
patent: 6247441 (2001-06-01), Sato et al.
patent: 6398511 (2002-06-01), French et al.
patent: 6616416 (2003-09-01), Tolbert, Jr.
patent: 2003/0156946 (2003-08-01), Tolbert, Jr.
patent: 2006/0140777 (2006-06-01), Berwanger et al.

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