JPH0932528A - Installing structure of oil level gauge - Google Patents

Abstract

PROBLEM TO BE SOLVED: To easily inspect an oil level by preventing an oil level gauge guide from hindering the other part. SOLUTION: An oil level gauge guide 16 is arranged on an installing surface of an exhaust manifold 8 of a cylinder head 3 in a V-type engine 1, and oil return passages 3a, 2a and 5a reaching an oil pan 6 from an oil level gauge guide 16 are arranged in a cylinder head 3, a cylinder block 2 and a crankcase 5, and an oil level gauge 15 is inserted into the oil return passages 3a, 2a and 5a from the oil level gauge guide 16. Since the oil level gauge 15 is arranged in a dead space unhindering to the other part and the oil level gauge 15 passes through the oil return passages 3a, 2a and 5a, a degree of freedom is produced in a layout of arranging respective parts besides inspection work of oil is facilitated.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to an oil level gauge mounting structure applied to a V-type engine.

[0002]

2. Description of the Related Art In a so-called V type engine in which the cylinders of a multi-cylinder engine are divided into two rows of the same number and are arranged in a V type, the intake passage is provided between the cylinder rows opposed to the V type. It is common to connect the intake manifold to. In addition, a separator that separates blow-by gas into gas and liquid is often arranged in this portion. Therefore, parts are concentrated in the upper center of the cylinder head of the V-type engine. The exhaust manifold is connected to the outside of each cylinder row.

On the other hand, in a generally used wet sump type engine, the lubricating oil returns to the oil pan when the engine is stopped. Therefore, it is necessary to check whether the amount of this oil is appropriate by using a flat plate. The oil level gauge formed in the shape of the rod is inserted from the outside (Actually, 62-7
1319 gazette etc.). For this reason, a pipe-shaped oil level gauge guide is provided close to the cylinder block of the engine, and the oil level gauge is inserted from above the oil level gauge guide.

By the way, in the V-type engine, since the parts are concentrated in the center of the upper portion as described above, the oil level gauge guide cannot be provided in the center of the upper portion of the cylinder head. Therefore, it is provided on the side of the cylinder block. This will be described with reference to FIG. 3 showing the front surface of the engine and FIG. 4 showing the side surface thereof. 1 is V
A type engine, 2 is a V-shaped cylinder block, 3 is a cylinder head, 4 is a cylinder head cover, 5 is a crankcase, and 6 is an oil pan. Although not shown, an intake manifold is connected to the upper portion of the cylinder head cover 4, and an exhaust manifold 8 is connected to the side portion of the cylinder block 2.

A pipe-shaped oil level gauge guide 9 whose upper part is bent toward the cylinder head 3 is disposed on the side of the cylinder block 2. The oil level gauge guide 9 is integrally provided with brackets 10 and 11 at an upper end portion and an intermediate portion. The bracket 10 is a bolt (not shown) on the cylinder block 2, and the bracket 11 is a bolt 12 on the engine mounting bracket 13. It is fixed to. The lower end of the oil level gauge guide 9
It is supported by a mounting portion 14 (see FIG. 4) provided on the oil pan 6. With this structure, when the oil level gauge 15 is inserted from the upper end of the oil level gauge guide 9, the tip of the oil level gauge 15 enters the oil pan 6.

In the conventional oil level gauge mounting structure having such a structure, the oil level gauge 15
When checking the amount of oil in the oil pan 6 with the engine stopped, use the oil level gauge guide 9
Then, the oil level gauge 15 is pulled out, the oil attached to the oil level gauge 15 is wiped off with a cloth or the like, and the oil level gauge guide 9 is correctly inserted again and immediately pulled out. Then, the amount of oil in the oil pan 6 can be known from the position of the attached oil.

[0007]

In the case of the above structure, the oil level gauge guide has to be arranged avoiding the auxiliary machinery of the engine and the mounting bracket of the engine, so that the layout constraint becomes large, and the entire engine becomes large. In addition to increasing the size of the engine, the degree of freedom in the shape of the parts to be attached to the engine is reduced, which increases the difficulty in design. In addition, the position of the oil level gauge guide is close to, for example, a member on the vehicle body side such as a strut tower bar or a brake booster, and interferes with each other, and there is a problem that workability is poor when checking the amount of oil.

The present invention has been made to solve these problems of the conventional structure all at once.

[0009]

As a means for solving the above problems, the present invention provides an intake passage between cylinder rows opposed to each other in a V shape to connect intake manifolds, and the outside of each cylinder row. In a V-type engine in which an exhaust manifold is attached to the cylinder head, an oil level gauge guide is provided on the exhaust manifold mounting surface of the cylinder head, and an oil return passage communicating from the oil level gauge guide to the oil pan is provided in the cylinder head, the cylinder block and the crankcase. And an oil level gauge is inserted from the oil level gauge guide into the oil return passage.

[0010]

BEST MODE FOR CARRYING OUT THE INVENTION Embodiments of the present invention will be described below with reference to FIG. 1 showing a front surface of an engine and FIG. 2 showing a side surface thereof. It should be noted that, in FIG. 1, for the sake of clearly understanding the embodiment of the present invention, the illustration of a portion unrelated to the present invention is omitted and shown in cross section. 1 is a V-type engine, 2 is a cylinder block, 3 is a cylinder head, 4 is a cylinder head cover, 5 is a crankcase, and 6 is an oil pan. An intake manifold 7 is connected to an upper portion of the cylinder head cover 4, and an exhaust manifold 8 is connected to a side portion of the cylinder block 2.

The cylinder head 3, the cylinder block 2 and the crankcase 5 are provided with oil return passages 3a, 2a, 5a from the cylinder head 3 to the oil pan 6 for returning the oil of the cylinder head 3 to the oil pan 6. ing. An oil level gauge guide 16 is provided on the mounting surface of the exhaust manifold 8 of the cylinder head 3. This oil level gauge guide 16 is provided with a through hole for passing the oil level gauge 15, and is fastened to the cylinder head 3 with two mounting bolts 17.

A through hole through which the oil level gauge 15 extends extends obliquely from above the engine toward the mounting surface of the exhaust manifold 8, and the oil return passage 3a provided in the cylinder head 3 communicates with the end of the through hole. are doing. Thereby, when the oil level gauge 15 is inserted along the through hole of the oil level gauge guide 16, the oil level gauge 15 is guided to the inlet of the oil return passage 3a. When the oil level gauge 15 is further inserted, the oil level gauge 15 will be inserted into the oil return passage 3
A, 2a, 5a are sequentially guided, and the end portion reaches the oil pan 6.

In the mounting structure of the oil level gauge having such a structure, the work of inspecting the amount of oil in the oil pan 6 when the engine is stopped by using the oil level gauge 15 is similar to the conventional one. The oil level gauge 15 is pulled out from the guide 16, the oil adhering to the oil level gauge 15 is wiped off with a cloth, etc., and the oil level gauge guide 16 is correctly inserted again and immediately pulled out. Then, the amount of oil in the oil pan 6 can be known from the level of the attached oil.

In this case, the oil level gauge 1
Since 5 is passed through the oil return passages 3a, 2a, 5a, it is possible to relatively reduce the bending as shown in FIG. 1, so that the workability of insertion into and removal from the oil level gauge guide 16 is improved, Further, it becomes difficult for oil to adhere to the inner walls of the oil return passages 3a, 2a, 5a at the time of draining, and the accuracy of the oil amount inspection can be improved.

[0015]

The present invention is a mounting structure for an oil level gauge constructed as described above. An oil level gauge guide is provided on the mounting surface of an exhaust manifold so that the oil level gauge can be inserted into an oil return passage. Since it does not affect the layout of other components when the other components are mounted, unlike the conventional one described above, the difficulty in design is not increased. Also, the part where the oil level gauge guide is installed is usually a dead space,
In this respect as well, it does not hinder other parts, and there is no increase in the number of man-hours for processing the cylinder head. That the oil level gauge guide is installed in the dead space,
Since the oil return passage does not have a large bend, it is possible to easily insert and remove the oil level gauge and inspect the oil amount.

[Brief description of drawings]

FIG. 1 is a vertical cross-sectional view of a V-type engine showing an embodiment of the present invention.

FIG. 2 is a side view of the engine of FIG. 1 viewed from the right side.

FIG. 3 is a front view of a V-type engine showing a conventional technique.

FIG. 4 is a side view of the engine of FIG. 3 viewed from the right side.

[Explanation of symbols]

 1 V type engine 2 Cylinder block 2a Oil return passage 3 Cylinder head 3a Oil return passage 4 Cylinder head cover 5 Crankcase 5a Oil return passage 6 Oil pan 7 Intake manifold 8 Exhaust manifold 15 Oil level gauge 16 Oil level gauge guide 17 Mounting bolts

Claims (1)

[Claims] 1. A V in which an intake passage is provided between cylinder rows facing each other in a V shape to connect intake manifolds, and an exhaust manifold is attached to the outside of each cylinder row.
Type engine, an oil level gauge guide is provided on the exhaust manifold mounting surface of the cylinder head,
An oil return passage communicating from an oil level gauge guide to an oil pan is provided in the cylinder head, the cylinder block, and the crankcase, and an oil level gauge is inserted from the oil level gauge guide into the oil return passage. Oil level gauge mounting structure.