JPH0722005U - Engine automatic lubricator - Google Patents

Abstract

(57) [Summary] [Object] The present invention aims to provide an automatic oiling apparatus for an engine, which keeps the oil level of the oil pan of the engine at an appropriate level. A high-level and low-level oil level detection device is provided in a compartment 13 partitioned from the oil pan 2, and the compartment 13 is partitioned from the auxiliary oil tank 6 via the opening / closing valve 7 to the oil pan 2. Is provided with an oil passage 11 communicating with the high-level oil level detection device. The high-level oil level detection device is driven with a signal from the low-level oil level detection device 3 to drive the driving means to the valve opening side. A control device 8 for driving the drive means to the valve closing side by a signal from is provided, and the compartment 13 communicates with the oil pan 2 above and below the oil surface.

Description

[Detailed description of the device]

[0001]

[Industrial applications]

 TECHNICAL FIELD The present invention relates to an automatic oil supply device for an engine, which always keeps an oil in an oil pan of the engine at an appropriate level.

[0002]

[Prior art]

 A technique is known in which an oil level sensor operates to replenish oil from an auxiliary oil tank when the engine oil level falls below a prescribed position (for example, Japanese Utility Model Publication No. 56-173705 and Japanese Utility Model Publication 60-16723). No.

[0003]

[Problems to be solved by the device]

 However, the oil gradually deteriorates due to engine operation and stains (sludge) are generated, and the sludge accumulates in the oil pan, which makes the float of the oil level detector inaccurate and causes malfunction. Occurs.

When the oil level detection device malfunctions due to the sludge in this way, the on-off valve provided in the line from the auxiliary oil tank opens, and rotating parts such as the crankshaft and connecting lot get caught in the oil. As a result, the oil is agitated, which causes an abnormal rise in oil temperature, an increase in oil consumption, a deterioration in fuel consumption, and a reduction in output.

Further, for example, if the auxiliary oil tank runs out of oil, or if the open / close valve remains closed, the lubricating oil will run short and seizure will occur in the engine.

Therefore, an object of the present invention is to keep the oil level of the oil pan constant at all times, and even if the oil level drops and a shortage of lubricating oil occurs, an automatic engine warning can be issued. To provide a refueling device.

[0007]

[Means for Solving the Problems]

 According to the present invention, a high-level oil level detection device that outputs a signal when the oil level reaches a high level in a compartment partitioned from an oil pan, and a low level that outputs a signal when the oil level falls below a low level An oil passage is provided to connect the auxiliary oil tank to the compartment via an on-off valve, and a drive mechanism for opening and closing the on-off valve is provided on the on-off valve. The pan and the oil level are in communication above and below, respectively, and the signal from the high level oil level detection device drives the drive means to the valve closing side, and an alarm is issued by the signal from the low level oil level detection device. It has a control device that outputs to the means.

[0008]

[Action]

 Therefore, when the oil level of the oil pan falls below the high level, the on-off valve is opened by the signal from the high level oil level detection device and the oil is supplied from the auxiliary oil tank to the oil pan. When the oil level in the oil pan reaches a high level, the open / close valve closes due to a signal from the high level oil level detection device. Therefore, the oil level on the oil pan is always kept at a high level. Also, for example, when the on-off valve remains closed and cannot be opened, or when the oil level in the auxiliary oil tank is exhausted and the oil level falls below the low level, a signal from the low level oil level detection device Since the control device outputs to the alarm means, an alarm is issued and therefore the driver can take measures such as replenishing oil.

Further, in the present invention, since the compartment is provided, the dirt and oil that falls into the oil pan does not flow into the compartment, and the oil from the auxiliary tank always flows into the compartment. Since the sludge does not enter the compartment, the operation of the high level oil level detection device and the low level oil level detection device is not adversely affected by the sludge.

Therefore, the present invention is extremely suitable for this type of automatic oiling apparatus.

[0011]

【Example】

 Hereinafter, embodiments of the present invention will be described with reference to the drawings. In the drawings, members having the same function are denoted by the same reference numerals, and the description thereof will be omitted.

In FIG. 1, the oil pan 2 of the engine 1 is provided with a partitioned compartment 13.

Further, the compartment 13 is connected from the downstream of the oil filter 20 to the connection port 15 on the upper part of the oil surface 3 by the oil circuit 23, and the damper chamber 14, the ventilation port 12 and the communication port 11 provided adjacent to each other. It is communicated with.

The reed switch 3 is housed inside the compartment 13 and has an upper limit stopper 17 provided at a high level on the oil level and a lower limit stopper 18 provided at a low level on the oil level, and penetrates the magnetism. An oil level detection switch 19 having a magnet-attached float 16 is attached to the outer circumference of the pipe.

Since the detection switch 19 is provided with a pipe accommodating a switch for detecting a high level and a low level adjacent to each other, its accuracy is high even if the engine is tilted.

Further, those switches are connected to the control device 8 by electric circuits 9a to 9d.

The control device 8 is connected to a drive means 7 a of an on-off valve 7 interposed in an oil circuit 5 connecting the auxiliary oil tank 6 to the compartment 13. Reference numeral 21 indicates a light emitting diode, and 22 indicates a buzzer, which is connected to a power source (not shown) by an electric circuit 24.

Although the light emitting diode 21 and the buzzer 22 constitute an alarm means, only one of them may be used when implementing the present invention. Therefore, when the oil level 4 descends and the float 16 falls below the position of the upper limit stopper 17, the reed switch (left side in the illustrated example) is turned off, and the control device 8 opens the opening / closing valve 7 by the signal and the auxiliary tank. The oil in the chamber 6 is supplied to the compartment 13 of the oil pan 2. Therefore, the compartment 13 is substantially replenished with fresh oil. The oil in the compartment 13 flows out from the communication port 11 as the oil level 4 drops. When the engine is operated and oil is consumed and the oil level 4 of the oil in the oil pan 2 is lowered, the float 16 is separated from the upper limit stopper 17. The reed switch turns off and the on-off valve 7 opens. Therefore, the oil level 4 is always kept at the high level.

Further, since the compartment 13 is replenished with new oil and the oil downstream of the filter 20 always enters, the dirty oil does not cause the detection device 19 to malfunction.

When the auxiliary oil tank 6 runs out of oil or the opening / closing valve 7 cannot be opened, the oil level 4 is lowered. When the float falls to the position of the lower limit stopper 18, the reed switch 3 (the right switch in the illustrated example) is turned on, the control device 8 lights the light emitting diode 21, and sounds the buzzer 22 to issue an alarm. Therefore, the driver may replenish the oil or check the on-off valve 7 and its drive system. Therefore, it is possible to prevent seizure and the like due to insufficient oil.

In the damper chamber, oil returning from various parts of the engine when the engine is stopped prevents the oil surface 4 of the oil pan from rising, and prevents the oil in the dirty oil pan from flowing back into the compartment 13.

FIG. 2 shows another embodiment of the present invention, which is the same as the first embodiment except that the damper chamber is omitted, and the structure is simple and the cost can be reduced.

FIG. 3 shows another embodiment of the present invention, which is the same as the first embodiment except that the oil from the auxiliary oil tank 6 is directly supplied to the oil pan 2 by the oil circuit 5.

When the oil temperature is low such as after the start of the engine, replenishment to the compartment 13 may cause the malfunction of the oil level in the compartment higher than the oil pan, which can be prevented.

[0025]

[Effect of device]

 As described above, according to the present invention, the oil level in the oil pan can be maintained at a high level at all times, and the alarm means is activated if the oil level falls to a dangerous state, which is extremely preferable for safety.

[0026] Further, since the oil is less contaminated by the compartment, the oil level detection device, that is, the sensor does not malfunction.

[Brief description of drawings]

FIG. 1 is a configuration diagram of an automatic engine oiling apparatus according to an embodiment of the present invention.

FIG. 2 is a block diagram of an automatic oil supply system for an engine showing another embodiment of the present invention.

FIG. 3 is a configuration diagram of an automatic engine oiling apparatus according to another embodiment of the present invention.

[Explanation of symbols]

 2 ... Oil pan 3 ... Reed switch 6 ... Auxiliary oil tank 7 ... Open / close valve 8 ... Control device 11 ... Communication port 12 ... Vent port 13 ... Separate chamber 14 ... Damper chamber 16 ... Magnet float 20 ... Oil filter

Claims (1)

[Scope of utility model registration request] 1. A high level oil level detecting device which outputs a signal when the oil level reaches a high level in a compartment partitioned from an oil pan, and a low level oil level which outputs a signal when the oil level falls below a low level. A detection device, an oil passage communicating from the auxiliary oil tank to the compartment via an opening / closing valve, and a drive means for opening / closing the opening / closing valve is provided in the opening / closing valve. Control that communicates with each other above and below the surface, and that drives the drive means to the valve closing side with a signal from the high level oil level detection device and outputs to the alarm means with a signal from the low level oil level detection device An automatic fueling device for an engine, which has a device.