Fuel oil system and fuel oil system protection method

Abstract

The invention discloses a fuel oil system and a fuel oil system protection method. The fuel oil system protection method comprises the steps that a water level signal, a pressure signal and a moisturecontent signal in an oil-water separator are obtained; the state of the oil-water separator is judged according to the obtained water level signal, pressure signal and moisture content signal, and the engine is controlled to work normally only when the water level signal, the pressure signal and the moisture content signal meet the requirements; and under other conditions, the engine is controlled to get into a protection mode or the engine is controlled to get into a speed-limiting and torque-limiting mode when started next time. The oil-water separator can be drained and maintained in time,normal work of the oil-water separator is guaranteed, and protection on the engine is improved.

Description

technical field [0001] The invention relates to the technical field of engines, and more specifically relates to a method for protecting a fuel system. In addition, the present invention also relates to a fuel system for implementing the above fuel system protection method. Background technique [0002] In the forklift market, there are a lot of diesel purchased from informal channels. Forklift users use irregular oil and mix oil tanks, resulting in poor quality diesel oil. Forklift users have poor awareness of equipment maintenance, and the operation of draining water is not easy enough. The oil-water separator is drained for maintenance, causing impurities and water to enter the engine oil pump, clogging, grinding and rusting the fuel system, and causing engine failure. [0003] The existing oil-water separator needs to be manually operated during the water discharge process. Due to the small operating space of the oil-water separator, manual water discharge is time-consu...

AI Technical Summary

Problems solved by technology

[0002] In the forklift market, there are a lot of diesel purchased from informal channels. Forklift users use irregular oil and mix oil tanks, resulting in poor quality diesel oil. Forklift users have poor awareness of equipment maintenance, and the operation of draining water is not easy enough. The oil-water separator is drained for maintenance, causing impurities and water to enter the engine oil pump, clogging, grinding and rusting the fuel system, and causing engine failure

[0003] The existing oil-water separator needs to be manually operated during the water discharge process. Due to the small operating space of the oil-water separator, manual water discharge is time-consuming and laborious; in addition, in the existing fuel system structure, during the use of the oil-water separator, oil separation Failure to release water in time will cause moisture and impurities to enter the engine fuel system, causing engine failure and reducing the service life of the engine

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