Invention Grant
- Patent Title: System and method for monitoring blow-by in a combustion engine
- Patent Title (中): 用于监测内燃机的窜气的系统和方法
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Application No.: US13821901Application Date: 2011-09-08
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Publication No.: US09121313B2Publication Date: 2015-09-01
- Inventor: Jasper Den Dopper
- Applicant: Jasper Den Dopper
- Applicant Address: NL Eindhoven
- Assignee: DAF TRUCKS N.V.
- Current Assignee: DAF TRUCKS N.V.
- Current Assignee Address: NL Eindhoven
- Agency: Banner & Witcoff, Ltd.
- Priority: NL2005327 20100908
- International Application: PCT/NL2011/050616 WO 20110908
- International Announcement: WO2012/036547 WO 20120322
- Main IPC: F01M13/02
- IPC: F01M13/02 ; F01M13/00 ; F01M13/04

Abstract:
A combustion engine comprises a suction valve system for discharging blow-by gas from the crankcase into an air inlet channel for the cylinders. The suction valve system is driven by an electromotor which is connected to a power source. The system comprises a rev counter which measures the rpm of the suction valve system, as well as a control unit which is connected to the power source, the rev counter and the engine management system. The control unit can set predefined engine conditions as well as the power flowing to the suction valve system to have this system rotate at a predefined speed. The value of the set power is a measurement for the blow-by.In lieu of regulating the power flowing to the suction valve system, the control unit can also set the power flowing to the suction valve system to a predefined value. The rev counter then measures the rpm of the suction valve system, which is a measurement for the blow-by.
Public/Granted literature
- US20140053818A1 SYSTEM AND METHOD FOR MONITORING BLOW-BY IN A COMBUSTION ENGINE Public/Granted day:2014-02-27
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