JPH0722006U - Engine automatic lubricator - Google Patents

Abstract

(57) [Summary] [Purpose] It is an object of the present invention to provide an automatic oil supply device for an engine that stops automatic oil supply from an auxiliary tank regardless of the oil level in the oil pan during engine operation. [Arrangement] An oil passage 5 communicating with an oil pan 2 from an auxiliary oil tank 6 through an opening / closing valve 7 is provided, and a high level sensor 19a and a low level sensor 1 provided in the oil pan 2 are provided.
In an engine automatic oiling apparatus provided with a control device 8 for opening and closing the opening / closing valve 7 by a signal from 9b, a high level detecting circuit 22 for receiving and outputting a signal from a high level sensor 19a and its high level detecting circuit 22. An on-off valve drive circuit 23 that opens and closes the on-off valve 7 in response to a signal from the low level detection circuit 26, a low level detection circuit 26 that outputs a signal from the low level sensor 19b, and a signal from the low level detection circuit 26 to issue an alarm and display. An alarm display circuit 27 and a power supply circuit 30 are provided. Then, a driving detecting means 31 for detecting that the engine 1 is in operation is provided, and a cancel circuit 32 for cutting the output of the power supply circuit by a signal from the detecting means 31 is provided.

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]

 When the engine oil level falls below the specified position, the oil level sensor operates and opens the solenoid valve to replenish the oil from the auxiliary oil tank.When the engine reaches the specified level, the sensor operates and closes the solenoid valve, causing the oil level to rise. There is known a technique in which an oil level sensor is activated to issue an alarm when the lower limit is reached (see, for example, Japanese Utility Model Laid-Open No. 56-173705 and Japanese Utility Model Laid-Open No. 60-16723).

[0003]

[Problems to be solved by the device]

 However, the oil level in the oil pan cannot be determined when the engine rocks due to changes in the usage conditions during operation of, for example, automobiles, construction machinery, and marine engines.

If the oil level is detected in that state and oil is replenished, a malfunction will occur.

Therefore, an object of the present invention is to provide an automatic oil supply device for an engine, which stops automatic oil supply from an auxiliary tank regardless of the oil level in an oil pan during engine operation.

[0006]

[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 means for opening and closing the on-off valve is provided on the on-off valve. A high level detection circuit that communicates with the pan and above and below the oil level, and outputs an off signal when the signal from the high level oil level detection device disappears, and an off signal from the high level detection circuit. In response to this, the on-off valve drive circuit that opens the on-off valve, the low-level detection circuit that outputs the ON signal from the low-level oil level detection device, and the alarm that issues and displays an alarm with the signal from the low-level detection circuit Display times More becomes a power supply circuit, the operation detection means you detecting that the engine is in operation is provided, is provided a cut Tosuru cancel circuit the output of the power supply circuit by a signal from the detection means.

[0007]

[Action]

 In the automatic engine oiling apparatus configured as described above, the output of the power supply circuit is cut off by the signal from the operation detecting means while the engine is operating, so that oil is not replenished from the auxiliary tank.

[0008]

【Example】

 Hereinafter, embodiments of the present invention will be described with reference to the drawings. 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 auxiliary tank 6 is connected to the compartment 13 by an oil circuit 5 via an electromagnetic opening / closing valve 7.

A reed switch 3 that constitutes a high level sensor 19a and a low level sensor 19b, which will be described later, is housed inside the compartment 13. The reed switch 3 has an upper limit stopper 17 and a lower limit stopper 18, It consists of adjacent pipes that penetrate the magnetism. A high level sensor 19a having a magnet-attached float 16 and a low level sensor 19b are attached to the outer circumference thereof.

Further, referring to FIG. 2, the high level sensor 19a is connected to the on-off valve drive circuit 23 via a terminal plate 21 and a high level detection circuit 22 composed of a transistor and a relay.

The low level sensor 19b is connected through a terminal plate 25 to a low level detection circuit 26 composed of a transistor and a relay, and the low level detection circuit 26 is composed of an IC and has an alarm display circuit 27 having a latch circuit. It is connected to the buzzer 28 and the light emitting diode 29 via.

Both are connected to the power supply circuit 30.

A cancel circuit 32 is connected to the power supply circuit 30.

The cancel circuit 32 is composed of a transistor and a relay, and is configured so that the hydraulic switch is turned on and the power is turned off in response to a signal from the hydraulic switch 31 which is an operation detecting means provided in the engine. ing.

Therefore, since the power is turned off at both the high level and the low level while the engine is in operation, there is no oil supply from the auxiliary tank.

[0018]

[Effect of device]

 Since the present invention is configured as described above, automatic oil supply is not performed during engine operation. Therefore, there is no malfunction and it is safe.

Since the power is turned on to automatically refuel when the engine is stopped, it is suitable for automobiles, ships, etc., where the working time is limited.

[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 the control device shown in FIG.

[Explanation of symbols]

 DESCRIPTION OF SYMBOLS 1 ... Engine 2 ... Oil pan 3 ... Reed switch 5 ... Oil circuit 6 ... Auxiliary tank 7 ... Electromagnetic on-off valve 8 ... Control device 13 ... Compartment 19a ... High level sensor 19b ... Low level sensor 22 ... High level detection circuit 23 ... Open / close valve drive circuit 26 ... Low level detection circuit 27 ... Alarm display circuit 31 ... Hydraulic switch 32 Cancel circuit

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. A high level detection circuit that communicates with each other above and below the surface, and that outputs an off signal when there is no signal from the high level oil level detection device;
The on-off valve drive circuit that opens the on-off valve in response to the off signal from the high level detection circuit, the low level detection circuit that outputs the on signal from the low level oil level detection device, and the low level detection circuit It consists of an alarm display circuit that issues and displays an alarm with a signal and a power supply circuit, and has a driving detection means that detects that the engine is running, and a cancel circuit that cuts the output of the power supply circuit by the signal from the detection means. An automatic oil supply device for engines, which is characterized by being provided.