JPS5835213A - Oil temperature control equipment in engine - Google Patents

Abstract

PURPOSE:To enable sufficient lubrication when it is cold in such a way that an oil pan is divided into two chambers, when oil temperature is low, oil in one chamber is circulated, and when it becomes higher than the definite temperature, oil of all the content in the oil pan is circulated. CONSTITUTION:An oil pan 1 is divided into one chamber 1a and another chamber 1b by a partition plate 10, a thermo-valve 11 is provided at the lower part of the partition plate 10, and a communication port 12 provided at its upper part. Besides, a suction trainer 3 is positioned in the one chamber 1a, oil is sucked by an oil pump, it is fed through an oil cooler 5, etc. via an oil pipe 7a into each part of an engine, and its return is fed through an oil pipe 7b from above the other chamber 1b. Thus, when liquid temperature is low, a thermo-vlave 11 is closed, oil is returned through the communication port 12 to the one chamber 1a, and when liquid temperature is high, the thermo-valve 11 is closed, all the amount of oil in the one chamber 1a and in the other chamber 1b is circulated.

Description

[Detailed description of the invention] The present invention relates to a device for controlling engine oil temperature.

In the conventional engine l118I device, as shown in FIG.
Due to the driving force, oil is supplied from the suction strainer 3 through the suction pipe 4, via the oil cooler 5, and the oil filter 6 to each part of the engine. 7 is an oil pipe, 7a is a pipe that supplies each part of the engine, 7b is a pipe that flows into the oil pan again, 8 is a safety valve,
9 is a regulator valve. In such a lubricating device, the entire amount of oil in the oil pan 1 is constantly circulated, and the entire amount of oil is kept at the same temperature. For this reason, when it is cold, the outside air is cold, so the entire age of the oil gets cold, and the oil temperature does not get high, especially during one revolution at low speed, and the viscosity of the oil increases, making it impossible to provide sufficient lubrication. .

In view of the above points, the present invention provides a device for controlling engine oil temperature so as to provide sufficient lubrication even in cold weather.

Hereinafter, the present invention will be described in detail based on the drawings.

FIG. 2 shows an embodiment of the present invention, in which 10 is a partition plate that partitions the oil pan 1 into two parts: - chamber 1a and other chamber 1b.
Divide into 11 is a thermopulp provided at a lower position of the partition plate 10, and 12 is a communication port provided at an upper position of the partition plate 10. The suction strainer 3 is located in one room 1a,
The driving force of the oil pump 2 sucks the oil in the -chamber 1a, passes through the oil cooler 5 and oil filter 6,
The oil is supplied to each part of the engine through the oil pipe 7a.

The oil pipe 7b through which engine oil returns is opened above the other chamber 1b, and the oil flows into the other chamber 1b.

When the temperature of the engine oil is such that the viscosity is sufficient for 1lIIW4, the thermopulp 11 is opened, and the entire amount of oil in one chamber 1a and the other chamber 1b' of the oil pan 1 circulates, and the temperature becomes the same, and IIIWl is performed. . When the engine oil does not have a sufficient temperature for lubricating and is lower due to the outside air, etc., the thermovalve 11 is set to close.

Then, after being supplied to the engine, the oil flowing into the other chamber 1b from the oil pipe 7b has a higher temperature than the oil inside the other chamber 1b, and since the thermovalve 11 is closed,
The oil in the first chamber 1a and the oil on the top surface of the other chamber 1b are circulated through the communication port 12 to the third chamber 1a of the engine.
Do Wl.

FIG. 3 is a diagram showing another embodiment of the present invention, in which 13 is a small oil pan corresponding to one chamber 1a of the oil pan 1 of the previous embodiment, 14 is a reserve tank corresponding to another chamber 1b, and 15'
<i Thermovalve provided below the reserve tank 14, 16 a communication port provided above the reserve tank 14, 17a an oil pipe that leads oil from the thermovalve 15 to the small oil pump, 17b a communication port 16 is an oil pipe that guides oil to a smaller oil pan 13.

Oil sucked from the suction strainer 3 in the small oil pan 13 is supplied to each part of the engine, and flows into the reserve tank 14 through the oil pipe 7b. At this time, if the engine oil has a liquid temperature that exhibits a viscosity of 1 rliI, the thermovalve 15 is opened, and the entire volume of the small oil pan 13 and reserve tank 14 is at the same temperature and circulates, lubricating each part of the engine. . When the engine oil is low due to the outside air, etc., the thermovalve 15 is closed, and the oil flowing into the reserve tank "14 from the oil pipe 7b flows from the communication port 16 through the oil pipe 17b and into the small oil pan 13. Oil on the upper surface of the small oil pan 13 and the reserve tank 14 circulates.

As described above, according to the present invention, the conventional oil pan is divided into two parts, and when the engine oil temperature is low, the oil in one chamber is mainly circulated, so that the engine oil temperature can be lowered quickly. +Able to perform mwi. For example, even at low rotation speeds, there is less heat exchange oil with bearings, etc.
Oil can be kept at high humidity. In addition, when the engine oil temperature reaches a certain level, the thermo valve opens and the entire oil pan can be circulated, just like before, to ensure sufficient lliI. It is possible to control the engine oil temperature to a level that allows smooth running.

[Brief explanation of the drawing]

Figure 1 is a schematic diagram showing a conventional engine lubrication system;
The figure is a schematic diagram showing one embodiment of the invention, and FIG. 3 is a schematic diagram showing another embodiment of the invention. 1...Oil pan, 1a...-chamber, 1b...other room, 2...oil pump, 3...suction strainer, 4...suction pipe, 5...oil cooler, 6 ...Oil filter, 7. ．． 7a, 7b, 17a
. 17b-□・・Pipe, 8・Safety pulp, 9・
...Regulator pulp, 10...Partition plate, 11.1
5...S°-Movalp, 12.16...Communication port,
13...Small oil pan, 14...Reserve tank. Patent application Jinhino Jidosha Kogyo Co., Ltd. Agent Jin゛ku Kuuki 69-

Claims (1)

[Claims] The oil pan is divided into two parts, and the -chamber is equipped with a suction strainer that communicates with the pipes for supplying oil to various parts of the engine, and the other chamber is equipped with a thermo-valve that communicates with the -chamber at a lower position, and a thermo-valve that connects the valve to the -chamber. - An engine oil temperature control device, characterized in that a communication passage leading to the chamber is provided, and an inlet for oil returning after being supplied to each part of the engine is provided above the other chamber.