US 12,338,814 B2
Fuel pump
Michael Robert DePue, Greene, NY (US); and Kenneth Fred Seager, Sr., Big Flats, NY (US)
Assigned to MOTOR COMPONENTS, LLC, Elmira Heights, NY (US)
Appl. No. 16/978,070
Filed by Motor Components, LLC, Elmira Heights, NY (US)
PCT Filed May 21, 2020, PCT No. PCT/US2020/033948
§ 371(c)(1), (2) Date Sep. 3, 2020,
PCT Pub. No. WO2020/242873, PCT Pub. Date Dec. 3, 2020.
Claims priority of provisional application 62/854,368, filed on May 30, 2019.
Prior Publication US 2023/0096698 A1, Mar. 30, 2023
Int. Cl. F04B 53/20 (2006.01); F04B 17/04 (2006.01); F04B 49/06 (2006.01); F04B 53/10 (2006.01); F04B 53/16 (2006.01); F04B 53/22 (2006.01)
CPC F04B 53/20 (2013.01) [F04B 17/046 (2013.01); F04B 49/06 (2013.01); F04B 53/10 (2013.01); F04B 53/16 (2013.01); F04B 53/22 (2013.01)] 17 Claims
OG exemplary drawing
 
1. A fuel pump, comprising:
a case, including:
a first section comprising a first hub and a hole;
a second section, the second section including a threaded portion and circumferentially arranged around the first section, wherein a radial space is arranged between the first section and the second section;
an inlet in fluid communication with the radial space;
a housing chamber arranged adjacent to the first section; and
an outlet in fluid communication with the hole;
a transparent filter bowl removably connected by way of the threaded portion to the second section, the transparent filter bowl disposed outside the case and providing a fuel path from the inlet, out from the case, into the transparent filter bowl, and back into the case, the transparent filter bowl fluidly connecting the radial space with the hole and axially extended from the second section;
a filter engaged with the first hub, the filter partially arranged in the transparent filter bowl and positioned slidably and circumferentially around the first hub and a second hub;
a support cage engaged with the first hub and the second hub, the support cage adapted to ensure proper alignment and positioning of the filter;
a valve assembly arranged at least partially in the first section and at least partially in the housing chamber;
a coil operatively arranged to apply a magnetic field to the valve assembly to selectively displace fluid therethrough;
a spring arranged axially between a shoulder and a first metal pole adapted to maintain proper positioning of a coil bobbin and the coil in the housing chamber, and
a circuit arranged around the valve assembly within the housing chamber, the circuit connected to the coil, wherein the circuit includes a microcontroller operatively arranged to control current supplied to the coil.