Invention Grant
- Patent Title: Use of double coil-strip springs for electric fuel pumps
- Patent Title (中): 使用双线圈弹簧电动燃油泵
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Application No.: US13607846Application Date: 2012-09-10
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Publication No.: US09143016B2Publication Date: 2015-09-22
- Inventor: Ina Constantinides , Paul Skljarow , Frank Kraft
- Applicant: Ina Constantinides , Paul Skljarow , Frank Kraft
- Applicant Address: DE Stuttgart
- Assignee: Robert Bosch GmbH
- Current Assignee: Robert Bosch GmbH
- Current Assignee Address: DE Stuttgart
- Agency: Michael Best & Friedrich LLP
- Main IPC: H02K13/00
- IPC: H02K13/00 ; H02K5/14
Abstract:
An electrical machine (1). The electrical machine (1) has a commutator (3), a brush (5) and a spring. In this case, the brush (5) is designed to make contact with the commutator (3). The spring is provided for the purpose of pressing the brush (5) against the commutator (3). In this case, the spring is designed as a coil spring (7) with a first coil strip (9) and a second coil strip (11).
Public/Granted literature
- US20140070661A1 USE OF DOUBLE COIL-STRIP SPRINGS FOR ELECTRIC FUEL PUMPS Public/Granted day:2014-03-13
Information query
