CN109026269A - A kind of engine gasoline and oil separating device - Google Patents

Abstract

The invention discloses a gasoline and engine oil separation device for an engine, and relates to the field of gasoline in-cylinder direct injection engines. It includes an engine, an oil well pump, an electric heater and a separation tank. The inlet of the oil well pump is in sealing communication with the oil pan in the engine; the outlet of the oil well pump is in sealing communication with the inlet of the U-shaped tube in the electric heater; The nozzle is sealed and communicated; the separation tank is sealed and communicated with the intake pipe in the engine through the third conduit; the electric heater forms a series circuit with the sliding rheostat, the switch and the car battery through the first wire; a temperature sensor is installed at the outlet end of the U-shaped tube; the measurement of the temperature sensor The head seal extends into the U-shaped pipe; the temperature sensor is connected to the thermometer through the second wire; the bottom of the separation tank is sealed and communicated with the inner cavity of the crankcase in the engine through the fourth conduit; the end of the fourth conduit near the bottom of the separation tank is provided with a return pump. The invention separates the gasoline in the engine oil, reduces the gasoline content in the engine oil, thereby improving the lubricating performance of the engine oil.

Description

Engine gasoline and engine oil separation device

technical field

The invention relates to the field of gasoline in-cylinder direct injection engines, in particular to an engine gasoline and engine oil separation device.

Background technique

During the cold working process of the direct injection engine just after the engine is started, the water temperature and engine oil temperature are lower than the normal working temperature, and the cylinder temperature is also lower than the normal working temperature. In the case of poor atomization, large gasoline droplets will flow into the crankcase along the end clearance of the piston or the gap between the piston and the cylinder wall, so that the gasoline will be mixed into the engine oil in the crankcase, causing the oil to be polluted , the lubricating performance of the oil decreases. Especially when the vehicle is driven at low speed for a long time or short distance after starting, the engine is in a cold state for a long time, and the amount of engine oil in the crankcase will increase significantly due to the influx of a large amount of gasoline, reducing the service life of the engine oil.

Contents of the invention

In order to solve the above-mentioned problems in the prior art, the present invention provides an engine gasoline and engine oil separation device.

To achieve the above object, the present invention adopts the following technical solutions:

An engine gasoline and engine oil separation device, which includes an engine, an oil pump, an electric heater and a separation tank, the inlet end of the oil pump is in sealing communication with the oil pan in the engine; the outlet end of the oil pump is connected with the U-shaped pipe in the electric heater The inlet end of the U-shaped tube is in sealing communication; the outlet end of the U-shaped pipe is in sealing communication with the nozzle in the separation tank; the separation tank is in sealing communication with the intake pipe in the engine through the third conduit; Form a series circuit; the outlet end of the U-shaped tube is provided with a temperature sensor; the measuring head of the temperature sensor extends into the U-shaped tube in a sealed manner; the temperature sensor is connected to the thermometer through the second wire; the bottom of the separation tank is connected to the middle of the engine through the fourth conduit. The inner cavity of the crankcase is sealed and communicated; the end of the fourth conduit near the bottom of the separation tank is provided with a return pump.

Further, the generator after starting continuously charges the battery of the vehicle.

Further, the outlet end of the oil well pump communicates with the inlet end of the U-shaped pipe in the electric heater through the first conduit; the outlet end of the U-shaped pipe communicates with the spray head in the separation tank through the second conduit.

Beneficial effect:

The engine gasoline and engine oil separation device of the invention separates the gasoline in the engine oil, reduces the gasoline content in the engine oil, and prevents the improvement of the lubricating performance of the engine oil from attenuating due to the infiltration of gasoline. After the engine runs for a period of time, it reaches its normal working temperature, the atomization effect of the gasoline sprayed into the cylinder meets the requirements of the manufacturer, and the amount of gasoline that escapes into the crankcase is significantly reduced.

Description of drawings

Fig. 1 is the structural representation of the engine gasoline and engine oil separation device of an embodiment of the present invention;

In the figure: 1-engine, 101-oil pan, 102-intake pipe, 103-crankcase, 104-cylinder, 2-oil pump, 3-electric heater, 301-U-shaped pipe, 4-separation tank, 401- Nozzle, 501-first conduit, 502-second conduit, 503-third conduit, 504-fourth conduit, 601-first wire, 602-second wire, 7-sliding rheostat, 8-switch, 9-car Storage battery, 10-temperature sensor, 11-temperature gauge, 12-reflux pump.

Detailed ways

The present invention will be further described below in conjunction with the accompanying drawings and embodiments.

Present embodiment proposes a kind of engine gasoline and machine oil separation device, as shown in Figure 1, it comprises engine 1, oil well pump 2, electric heater 3 and separation tank 4, the inlet end of oil well pump 2 and the oil sump in engine 1 101 is sealed and communicated; the outlet end of the oil well pump 2 is sealed and communicated with the inlet end of the U-shaped pipe 301 in the electric heater 3 through the first conduit 501; the outlet end of the U-shaped pipe 301 is connected with the spray head in the separation tank 4 through the second conduit 502 401 is sealed and communicated; the separation tank 4 is sealed and communicated with the intake pipe 102 in the engine 1 through the third conduit 503; the electric heater 3 forms a series circuit with the sliding rheostat 7, the switch 8 and the car battery 9 through the first wire 601; the U-shaped pipe 301 The outlet end of the temperature sensor 10 is provided with a temperature sensor 10; the measuring head of the temperature sensor 10 is stretched into the U-shaped pipe 301 in a sealed manner; the temperature sensor 10 is connected with the thermometer 11 by the second wire 602; the bottom of the separation tank 4 is connected with the fourth conduit 504 The inner cavity of the crankcase 103 in the engine 1 is sealed and connected; the end of the fourth conduit 504 near the bottom of the separation tank 4 is provided with a return pump 12 .

The working principle of this device is: use the oil pump 2 to pump the oil in the oil pan 101 into the U-shaped pipe 301, and the U-shaped pipe 301 is arranged in the electric heater 3. When the oil passes through the U-shaped pipe 301, it can The electric heater 3 performs heat exchange to increase the temperature of the engine oil. The temperature of the engine oil is increased to 80-100°C, and the engine oil is sent to the spray head 401 in the separation tank 4 through the second conduit 502, and is sprayed out from the spray head in the form of mist. Since gasoline has a lower boiling point than engine oil and is more volatile, within the above temperature range, the gasoline dissolved in the engine oil will be vaporized into gasoline vapor, and the gasoline vapor will be sent to the intake pipe 102 through the third conduit 503, and along with entering The fresh air reaches the cylinder 104 on the upper side of the piston together to participate in the combustion process, so as to realize the reuse of gasoline.

The electric heater 3 forms a series circuit with the sliding rheostat 7, the switch 8, and the car battery 9 through the first wire 601, closing the switch 8 and adjusting the sliding rheostat 7 can adjust the current value in the circuit, thereby adjusting the heating power of the electric heater 3. The outlet end of U-shaped pipe 301 is provided with temperature sensor 10, and the measuring head of temperature sensor 10 stretches in the U-shaped pipe 301 sealingly, and temperature sensor 10 is connected with thermometer 11 by second wire 602, and the real-time Engine oil temperature can be directly read from the reading on the thermometer 11. After engine 1 just starts, the temperature of engine 1 is the lowest, can adjust sliding rheostat 7 now, make its resistance value become minimum, make the electric current value maximum in the circuit, the heating power of electric heater 3 is also maximum, makes electric heater 3 heat up rapidly, rapidly increase the temperature of the engine oil flowing through the U-shaped pipe 301, and improve the separation efficiency of gasoline in the oil when the engine 1 is in a cold state. When the temperature of the engine 1 gradually rises, the temperature of the oil in the oil pan 101 also gradually rises, adjust the sliding rheostat 7 and increase its resistance value, reduce the current value in the circuit, thereby reducing the resistance of the electric heater 3 Heat power, the temperature of the engine oil can also reach the above temperature range by using a small heating power.

The engine oil passing through the separation tank 4 is sent back into the crankcase 103 by the oil return pump 12 through the fourth conduit 504 , and flows back into the oil pan 101 below the crankcase 103 .

This work process is to carry out after engine 1 starts, and generator 1 constantly charges automobile storage battery 9, and the power consumption of electric heater 3 to automobile storage storage battery 9 can not affect the residual power and service life of automobile storage storage battery 9.

The engine oil in the oil pan 101 can continuously reduce the content of gasoline mixed in the engine oil through the above-mentioned continuous circulation and reciprocating flow, thereby improving the cleanliness and service life of the engine oil.

For the limitation of the protection scope of the present invention, those skilled in the art should understand that on the basis of the technical solution of the present invention, various modifications or deformations that those skilled in the art can make without creative labor are still within the protection scope of the present invention within.

Claims (3)

1. a kind of engine gasoline and oil separating device, it is characterised in that: it includes engine (1), oil well pump (2), electric heating Device (3) and knockout drum (4), the arrival end of the oil well pump (2) are connected to oil sump (101) sealing in the engine (1)； The outlet end of the oil well pump (2) is connected to the sealing of the arrival end of the U-tube (301) in the electric heater (3)；The U-tube (301) outlet end is connected to spray head (401) sealing in the knockout drum (4)；The knockout drum (4) passes through third conduit (503) it is connected to air inlet pipe (102) sealing in the engine (1)；The electric heater (3) by the first conducting wire (601) with Slide rheostat (7), switch (8) and automobile storage battery (9) form series circuit；The outlet end of the U-tube (301) is equipped with temperature It spends sensor (10)；The measuring head of the temperature sensor (10) hermetically protrudes into the U-tube (301)；The temperature passes Sensor (10) is connect by the second conducting wire (602) with thermometer (11)；The bottom of the knockout drum (4) passes through the 4th conduit (504) it is connected to the bore seal of the crankcase (103) in the engine (1)；4th conduit (504) is close to described point One end of bottom from tank (4) is equipped with reflux pump (12).

2. engine gasoline according to claim 1 and oil separating device, it is characterised in that: the power generation after starting Machine (1) constantly charges to the automobile storage battery (9).

3. engine gasoline according to claim 1 or 2 and oil separating device, it is characterised in that: the oil well pump (2) Outlet end be connected to the arrival end of the U-tube (301) in the electric heater (3) by the first conduit (501)；The U-tube (301) outlet end is connected to by the second conduit (502) with the spray head (401) in the knockout drum (4).