Invention Grant
- Patent Title: Fuel pump solenoid having hydraulic damping
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Application No.: US16024348Application Date: 2018-06-29
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Publication No.: US11035491B2Publication Date: 2021-06-15
- Inventor: James Fochtman , John Walters , Tyler Craven
- Applicant: Continental Automotive Systems, Inc.
- Applicant Address: US MI Auburn Hills
- Assignee: Continental Automotive Systems, Inc.
- Current Assignee: Continental Automotive Systems, Inc.
- Current Assignee Address: US MI Auburn Hills
- Main IPC: F16K31/06
- IPC: F16K31/06 ; F04B53/10 ; F02M37/10 ; H01F7/08 ; H01F7/16 ; F02M59/46 ; F02M51/04 ; F02M63/00 ; F02M37/08 ; F02M59/10 ; F04B23/02 ; F02M55/00 ; F04B39/10 ; F16K1/42 ; F16K15/02 ; F16K27/02 ; F04B17/04 ; F16K15/14 ; F02M51/06 ; F02M59/36 ; B21D39/06 ; F02M37/54 ; F02M37/04

Abstract:
A solenoid assembly of a fuel pump includes a housing; a pole piece disposed within the housing; an armature assembly movably disposed within the housing and including an armature and a plunger; and a coil disposed within the housing. A plurality of metal disks are disposed in a stacked arrangement, coupled to the pole piece and situated so as to be impacted by the armature during a full stroke of the armature assembly. The solenoid assembly further includes at least one fluid path in fluid communication with the region surrounding the metal disks, the at least one fluid path configured such that only a portion of a secondary swept volume of fuel associated with the armature assembly during operation of the fuel pump passes through the region and decelerates the armature assembly when the armature assembly moves towards the pole piece responsive to a current passing through the coil.
Public/Granted literature
- US20190003611A1 FUEL PUMP SOLENOID HAVING HYDRAULIC DAMPING Public/Granted day:2019-01-03
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