CN2199310Y - Oil pressure abnormity protector for lubricating system of gasoline engine - Google Patents

Abstract

The utility model provides an oil pressure abnormity protector for the lubrication system of a gasoline engine, which can control the self extinguish of the engine for preventing the components from damage during the abnormal oil pressure of an engine lubrication system. A protection circuit is composed of a solenoid switch, a high pressure oil pressure switch C1, a low pressure oil pressure switch C2, and an indicating lamp. When the oil pressure of the lubrication system is too high or low, C1 or C2 is switched on and the solenoid switch is attracted. A normally closed contact is disconnected, and the power of the primary coil of an engine ignition system is cut off. The engine is automatically extinguished. The utility model has the advantages of simple protective circuit, reliable motion, and convenient installation, and can effectively prevent the components from damage caused by the abnormal oil pressure of the lubrication system. The utility model is particularly used as the oil pressure abnormity protector.

Description

Oil pressure abnormity protector for lubricating system of gasoline engine

The utility model relate to a kind of when petrol engine lubricating system oil pressure is unusual may command motor auto extinguishing to avoid the impaired protective gear of motor piece.

Petrolic lubrication system has crucial effect for the normal operation of motor, in case when the lubricating system oil pressure has exceeded normal range (NR) (oil pressure is crossed low or too high), will influence the normal operation of motor, even cause motor piece to be damaged.Therefore, in the running of motor, must pay close attention to the variation of lubricating system oil pressure and adopt an effective measure that in time to eliminate oil pressure unusual.In the prior art, the unusual supervision of oil pressure is mainly finished by oil pressure switch and tutorial light.Oil pressure switch is actually a kind of oil pressure sensor, and when the lubricating system oil pressure was lower than normal oil pressure, oil pressure switch was switched on and makes that tutorial light is bright opens, thereby reminds the timely make-up oil of driver.Obviously, this device by oil pressure switch connection tutorial light has only the effect of prompting or warning, there is no the function of automatic protection.In car running process, the driver almost is absorbed in the complex situations on the travel, has no time to attend to tutorial light at all.Therefore, the effect of this monitor and alarm unit is very limited, in fact performs practically no function.In addition, this device only works to the abnormal conditions that oil pressure is lower than normal oil pressure, and the situation that is higher than normal oil pressure for oil pressure is then powerless.Obviously, can be that the ANOMALOUS VARIATIONS of oil pressure is controlled the motor auto extinguishing according to profit oil if certain protective gear is arranged.Can prevent effectively that then motor piece is damaged.

It is that oil pressure occurs controlling the motor auto extinguishing when unusual at gasoline engine lubricating that the purpose of this utility model promptly is to design a kind of, to avoid the impaired lubricating system oil pressure of motor piece abnormal protection device.

To achieve these goals, the utility model utilizes high pressure oil to compress switch, low pressure oil compresses switch, magnetic switch and tutorial light are formed a lubricating system oil pressure abnormal protection device.The ANOMALOUS VARIATIONS of oil pressure compresses switch by high pressure oil or low pressure oil compresses switch makes the magnetic switch adhesive and its normally-closed contact is disconnected, and then makes the outage of engine ignition system primary air, motor auto extinguishing.Be described in further detail below in conjunction with the technical characteristics of specific embodiment the utility model petrol engine lubricating system oil pressure abnormal protection device.

Accompanying drawing 1 is the protective circuit figure of the utility model petrol engine lubricating system oil pressure abnormal protection device.

With reference to the accompanying drawings 1; the utility model petrol engine lubricating system oil pressure abnormal protection device and protective circuit mainly by high pressure oil compress switch C1, low pressure oil compress switch that C2, magnetic switch W1, W2 and tutorial light S form, high pressure oil compresses switch 1 and the low pressure oil C2 that compresses switch be the pressure switch that is subjected to the control of engine lube system oil pressure, in fact be exactly the lubricating system oil pressure sensor.When oil pressure was in normal range (NR), C1 and C2 all were disconnected; When oil pressure was higher than normal range (NR), C1 connected, and when oil pressure was lower than normal range (NR), C2 connected.The end of the electromagnetic coil L1 of magnetic switch W1 and the igniting gear 2 of automobile power supply switch D link, the other end by and the oil pressure switch C1 and the C2 ground connection that connect, its normally-closed contact one end connects the igniting gear 2 of power switch D, the other end sending and receiving motivation primary ignition coil G by resistance R 1.The end of the electromagnetic coil L2 of magnetic switch W2 connects the startup gear 3 of automobile power supply switch D by petrolic starting relay Q, the other end ground connection, one end of its normally opened contact connects the igniting gear 2 of power switch D, the other end sending and receiving motivation primary ignition coil G by R1.The end ground connection of tutorial light S, the other end is by the primary ignition coil G of resistance R 2 sending and receiving motivations.

The ignition trigger process of motor is constant substantially.When power switch D places igniting during gear, the electromagnetic coil L1 of magnetic switch W1 energising, its armature is disconnected by adhesive, normally-closed contact, and igniting is primary air G outage, and motor can not ignition trigger, and tutorial light S does not work.When power switch D forwards to when starting gear 3, electromagnetic coil L2 energising, its armature is by adhesive, and normally opened contact is switched on, and igniting is that primary air G gets electric car, and tutorial light S is bright to be opened.In the car process, the engine start running, power switch D automatically reverts to igniting gear 2 by starting gear 3.At this moment, electromagnetic coil L2 outage, the break-make of primary air G is controlled by magnetic switch W1 fully.When the lubricating system oil pressure maintained within the normal range (NR), oil pressure switch C1 and C2 all were disconnected, coil L1 outage, and its normally-closed contact is kept connection, and igniting is primary air G energising, and motor is kept normal operation, and tutorial light S is bright to be opened.In engine operation process, if the lubricating system oil pressure exceeds normal range (NR), oil pressure switch C1 or 2 is switched on, coil L1 energising, and its W1 normally-closed contact separates, and igniting is primary air G outage, and motor is with auto extinguishing, and tutorial light S extinguishes.

The utility model protective circuit is simple, and reliable in action is easy for installation, can avoid motor piece to damage unusually because of the lubricating system oil pressure effectively, so be particularly suitable for as petrol engine lubricating system oil pressure abnormal protection device.

Claims (1)

1, a kind ofly may command motor auto extinguishing occurs when unusual to prevent the impaired lubricating system oil pressure of motor piece abnormal protection device, it is characterized in that its protective circuit is made up of magnetic switch W1, W2, high pressure oil compress switch C2 and the tutorial light S of C1, low pressure oil that compress switch at petrol engine lubricating system oil pressure; The end of the electromagnetic coil L1 of magnetic switch W1 and the igniting gear 2 of automobile power supply switch D link, the other end by and the C1 and the C2 ground connection that connect, its normally-closed contact one end blocks 2 by the igniting that resistance R 1 meets power switch D, the other end sending and receiving motivation primary ignition coil G; The end of the electromagnetic coil L2 of magnetic switch W2 blocks 3 by the startup that petrolic starting relay Q meets automobile power supply switch D, the other end ground connection, one end of its normally opened contact connects the igniting gear 2 of power switch D, the other end sending and receiving motivation primary ignition coil G by R1; High pressure oil C1 and the low pressure oil C2 that compresses switch that compresses switch is the pressure switch that is subjected to the control of engine lube system oil pressure, and when oil pressure was within normal range (NR), C1 and C2 all disconnected, and when oil pressure was higher or lower than normal range (NR), C1 and C2 connected respectively; The end of tutorial light S is by resistance R 2 sending and receiving motivation primary ignition coils, the other end ground connection.

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