Invention Grant
- Patent Title: Motor vehicle auxiliary power unit vacuum pump
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Application No.: US16324912Application Date: 2016-08-15
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Publication No.: US11319966B2Publication Date: 2022-05-03
- Inventor: Alessandro Malvasi
- Applicant: PIERBURG PUMP TECHNOLOGY GMBH
- Applicant Address: DE Neuss
- Assignee: PIERBURG PUMP TECHNOLOGY GMBH
- Current Assignee: PIERBURG PUMP TECHNOLOGY GMBH
- Current Assignee Address: DE Neuss
- Agent Norman B. Thot
- International Application: PCT/EP2016/069326 WO 20160815
- International Announcement: WO2018/033194 WO 20180222
- Main IPC: F04D29/053
- IPC: F04D29/053 ; F04D25/06 ; F04D29/02 ; F02D41/00 ; F02M37/20 ; F04D7/02 ; F04D9/00 ; F04D13/06 ; F02M25/08 ; F04D15/00

Abstract:
A vapor pump for an automotive application includes a housing group with a pump housing having a pump chamber, an inlet opening and an outlet opening, and a motor housing having a motor chamber; a rotor shaft made from an electrically conductive material; a pumping wheel made of an electrically conductive plastic material arranged in the pump chamber and mounted on the rotor shaft to rotate therewith to pump the fuel vapor from the inlet opening to the outlet opening; a drive motor arranged in the motor chamber which includes a motor stator, a motor rotor and a motor control unit; a contact plug which electrically connects the motor control unit; and an electrically conductive bearing arrangement which is connected with the contact plug via a conductor. The motor rotor is connected with the rotor shaft to rotate therewith. The electrically conductive bearing arrangement rotatably supports the rotor shaft.
Public/Granted literature
- US20210285406A1 MOTOR VEHICLE AUXILIARY POWER UNIT VACUUM PUMP Public/Granted day:2021-09-16
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