发明授权
- 专利标题: Installation for operating electromagnetic loads in internal combustion engines
- 专利标题(中): 内燃机运行电磁负载的安装
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申请号: US67643申请日: 1979-08-17
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公开(公告)号: US4300508A公开(公告)日: 1981-11-17
- 发明人: Klaus Streit , Walter Buxmeyer , Peter Schulzke , Klaus Harsch
- 申请人: Klaus Streit , Walter Buxmeyer , Peter Schulzke , Klaus Harsch
- 申请人地址: DEX Stuttgart
- 专利权人: Robert Bosch GmbH
- 当前专利权人: Robert Bosch GmbH
- 当前专利权人地址: DEX Stuttgart
- 优先权: DEX2841781 19780926
- 主分类号: F02D41/20
- IPC分类号: F02D41/20 ; H01H47/32 ; F02D5/00 ; H01F7/18
摘要:
An installation for the operation of electromagnetic loads, especially solenoid valves, in fuel supply systems in internal combustion engines, wherein a measuring resistor as well as a switch are connected in series with the load and the entire arrangement is connected to the two supply voltage terminals. The installation comprises two comparators connected in parallel with the measuring resistor, at least one resistor being connected in front of these comparators, and controllable current source arranged between the junction of the threshold switch and the resistor in the proximity of the load, as well as a supply voltage terminal. The supply voltage of one of the comparators is made dependent on the voltage in the freewheel circuit, to maintain at least one of the comparators in the operating position even during freewheeling operation.
公开/授权文献
- US6105654A Cooler insert 公开/授权日:2000-08-22