JPH0338408Y2 - - Google Patents

Description

[Detailed Description of the Invention] Industrial Field of Application The present invention is applicable to forced lubrication of a valve mechanism such as a rocker arm normally attached to an independent cylinder head or a hydraulic device attached to a cylinder head, such as a third Always install an oil gear in the cylinder head to supply oil to the cylinder head, which is necessary for compression and expansion stroke engine braking devices that hydraulically drive valves and intake and exhaust valves, or variable valve timing devices that hydraulically drive intake and exhaust valves. This invention relates to a water pipe with an oil gear lary for an independent cylinder head that is built in and added to the water pipe for cooling that is installed.

BACKGROUND OF THE INVENTION Generally, in a water-cooled engine, cooling water is passed from a radiator through water pipes by a water pump, passes through water jackets in the cylinder block and cylinder head, cools various parts, and is then sent to the radiator.

However, in the case of independent cylinder heads, water pipes must be installed to send cooling water to each independent cylinder head, and in the same way, water pipes must be installed to send cooling water to each independent cylinder head. New pipes also had to be installed to supply the oil needed to drive the hydraulic system. And even if the piping was not the same, it was an inconvenience because it made the engine, which was already complicated with various devices, even more complicated.

Therefore, the present invention provides forced lubrication of the valve mechanism, such as a rocker arm normally attached to the cylinder head, or compression that hydraulically drives the third valve and intake/exhaust valve.
A cooling system that is always installed to cool the cylinder head, which supplies the oil necessary for the hydraulic equipment installed in the cylinder head, such as the expansion stroke engine brake system and the variable valve timing device that hydraulically drives the intake and exhaust valves. It is intended to be built into the water pipe that sends water to the water gear, and to be able to do this with an added oil gear.

Means to Solve the Problems The present invention provides forcible lubrication of the valve mechanism, such as a rocker arm attached to the cylinder head, in an independent cylinder head equipped with a water pipe that sends cooling water from the radiator to the water gear gallery, or for other reasons. An oil gear for supplying oil to hydraulically drive the three-valve engine brake system and variable valve timing system is built into the water pipe, and is connected to the oil hole in the independent cylinder head of each cylinder to supply oil from the oil gear. This is a water pipe with an oil gear lary, which is characterized by having an oil supply port drilled therein.

Hereinafter, it will be explained with reference to the drawings. As shown in FIGS. 1, 2 and 3, 1 is an independent cylinder head 2.
4 is a water pipe that sends cooling water to the water gear gallery 3 of each cylinder head, and 4 is a thermostat.

Since it is an independent cylinder head 1, a water pipe 2 is attached to the independent cylinder head 1, through which cooling water flows from the radiator through the water jacket 3 of the cylinder head 1 using a water pump to cool each part, and then returns through the thermostat 4. and into the water pipe,
As shown in FIG. 4, an oil gear rally 5 is built-in. Via the oil gear gallery 5, oil for forced lubrication of the valve mechanism such as the rocker arm, or oil for hydraulic operation of the third valve engine braking device and variable valve timing device is supplied from the oil intake port 6, and is supplied to the independent cylinder head of each cylinder. The oil is introduced into the oil hole 7 through the supply port 8.

In addition, an O-ring or a seal with liquid adhesive 9, 10, etc. is attached to the connecting surface between the water pipe 2 and the water gear rally 3, and the connecting surface between the supply port 8 from the oil gear rally and the oil hole 7 of the cylinder head to prevent liquid leakage. material is adopted.

Function: Therefore, in the same way as in the case of a cylinder head that is made in one piece, the water pipe with the oil gear lary has a water pipe 2 connected to the water gear lary 3 of the cylinder head 1 of each cylinder to collect the cooling water coming out from the water jacket of the cylinder head. It has a water collection function and circulates through the thermostat 4 to the water pump and radiator. Like the water pipe 2, an oil gear gallery 3 is built into the water pipe 2, and also has the function of guiding oil supplied from an oil intake port 6 to a cylinder head oil hole 7. There is no need to install new pipes, etc., and the oil from the oil gear gallery 5 to each independent cylinder head passes through the oil hole 7 of the cylinder head and is used to forcefully lubricate the valve mechanism such as the rocker arm attached to the cylinder head. , or to hydraulically actuated devices such as third valve engine braking systems and variable valve timing systems.

Effects As a result of the above, in the present invention, a water pipe that supplies cooling water to the independent cylinder head of each cylinder and returns to the radiator and water pump is attached to the cylinder head, an oil gear is built into the water pipe, and an oil intake It also has the function of guiding the oil supplied from the cylinder head to the cylinder head oil hole.
There is no need to install a new pipe or the like to measure oil supply, and an extremely compact and highly reliable water pipe with an oil gear lary can be obtained in a place that tends to be complicated.

[Brief explanation of the drawing]

Figure 1 is a front view showing the structure of a water pipe with oil gear lary for an independent cylinder head, and Figure 2 is a
FIG. 3 is a top view of the same structure, and FIG. 3 is a side view of the same structure. FIG. 4 is a detailed cross-sectional view taken along the line AA in FIG. 1. 1...Independent cylinder head, 2...Water pipe, 3...
...Water gear, 4...Thermostat, 5
...Oil gear, 6...Oil intake, 7...
...Oil hole, 8... Supply port.

Claims (1)

[Scope of utility model registration request] In an independent cylinder head equipped with a water pipe that sends cooling water from the radiator to the water gear, forced lubrication of the valve mechanism, such as a rocker arm attached to the cylinder head, or other
An oil gear for supplying oil to hydraulically drive valve-based engine braking devices and variable valve timing devices is built into the water pipe, and is connected to the oil hole in the independent cylinder head of each cylinder to supply oil from the oil gear. A water pipe with an oil gear lary, characterized by having an oil supply port drilled therein.