JPS63996Y2 - - Google Patents

Description

[Detailed Description of the Invention] The present invention relates to a packing structure that facilitates electrical wiring when electrical components are disposed inside the engine body of an automobile engine or the like.

In recent years, particularly in automobile engines, complex engine control has become necessary for the purpose of improving fuel efficiency, purifying exhaust gas, etc. When performing this control electrically, a large amount of electrical wiring is required, especially When electrical parts attached to the engine body's internal valve mechanism are connected to an external power source, the conventional method is to drill a hole in the engine cover and pass the electrical wiring through the hole. Because they are connected by
Not only does it require drilling, but it also requires a new sealing member such as a grommet to prevent blow-by gas from leaking from the hole, and it also causes problems such as wiring getting in the way when removing the rocker cover, making work difficult. be.

The present invention has been proposed in view of the above-mentioned drawbacks, and will be explained in detail below with reference to an embodiment of the present invention shown in FIGS. 1 to 3.

The cylinder head 1 and the rocker cover 2 that constitute the upper part of the automobile engine body form a rocker chamber 3, and the rocker chamber 3 contains a camshaft (not shown) that constitutes a part of the valve mechanism that opens and closes the intake valve and the exhaust valve. 4 is built-in.

A camshaft 4 is journaled on the upper surface of the cylinder head 1, and the camshaft 4 is fitted into this journaled hole and attached by a bearing cap 5.

By the way, when performing the above journal processing,
For convenience of processing, a half-moon-shaped groove 7 is formed in the outer wall 6 of the cylinder head 1, and a half-moon packing 8 is fitted into the groove 7.
The cylinder head 1 and the rocker cover 2 are fixed to each other with a gasket 9 interposed between the upper surface of the outer peripheral wall including the cylinder head 1 and the lower end outer peripheral surface of the rocker cover 2.

A solenoid valve 10 is attached to the upper part of the bearing cap 5 to switch and control the supply and discharge of control hydraulic pressure for a valve operation stop mechanism (not shown) that stops the operation of some intake valves and exhaust valves, for example. The electrical wiring 11 connected to a solenoid coil (not shown) is passed through two through holes 12 and 13 made in the half-moon gasket 8.
It is connected to a connector 14 provided outside the engine.

According to the above structure, the half-moon packing 8, which has conventionally been used as a sealing material for the groove 7 created during journal processing, is used, and the electrical wiring 11 is passed through the through-holes 12, 13 provided in the packing 8. Since the electrical wiring 11 is connected between the chamber 3 and the outside, the electrical wiring 11 does not get in the way when installing and removing the rocker cover 2, improving work efficiency. It is inexpensive because it does not require a newly machined hole or a sealing member for insertion, and is also highly reliable in terms of sealing performance that prevents leakage of blow-by gas and the like.

In addition, in the above embodiment, the solenoid valve 1
Although an example of the electrical wiring 11 connected to the engine 0 is shown, the electrical wiring 11 can also be used to connect other electrical parts installed inside the engine, such as inside the engine compartment 3.

[Brief explanation of the drawing]

FIG. 1 is a sectional view showing an embodiment of the present invention, and FIG. 2 is a view taken along the line - in FIG. 1: Cylinder head, 2: Rocker cover, 3:
Rotzker room, 4: camshaft, 6: outer wall, 7:
Groove, 8: Half-moon packing, 11: Electrical wiring, 12,
13: Through hole.

Claims (1)

[Scope of utility model registration request] When machining a camshaft bearing in a cylinder head, the gasket for sealing the machined groove drilled in the outer wall of the cylinder head is characterized by having electrical wiring that connects the inside and outside of the engine body passed through it. Patchkin structure.