JPH0395007U - - Google Patents

Description

[Brief explanation of the drawing]

FIG. 1 is a sectional view of an embodiment embodying the present invention;
Figure 2 is a piping diagram that also shows the flow of oil, Figure 3
The same figure is a sectional view showing the operating state of the hydraulic cylinder, and FIG. 4 is a sectional view of a conventional example. 1...Hydraulic valve lifter, 2...Cylinder head,
3...first oil passage, 4...second oil passage, 6...
Check valve, 7... Hydraulic cylinder, 7a... Cylinder chamber, 34... Body, 37... Plunger, 38
...High pressure chamber, 42...Second oil supply hole, 46...Oil, 4
7...Check ball, 51...Check ball seat.

Claims (1)

[Claims for Utility Model Registration] An inverted cup-shaped plunger 37 is housed inside an inverted cup-shaped body 34 so as to be slidable in the axial direction, and a high pressure chamber 38 is formed between the two. An oil supply hole 42 opening into the high pressure chamber 38 is formed, and the oil supply hole 42 has a check ball 47 and a check ball seat 5 in contact with the check ball 47.
1, oil passages 3, 4 are provided in the cylinder head 2 of the internal combustion engine and allow oil 46 from the oil pump to flow into the oil supply hole 42 of the hydraulic valve lifter 1.
and a check valve 6 provided in the middle of the oil passages 3 and 4 to prevent oil 46 from flowing out to the oil pump side, and a cylinder chamber 7a opening between the check valve 6 and the hydraulic valve lifter 1. provided,
During operation of the internal combustion engine, oil 46 is stored in the cylinder chamber 7a from the oil passages 3 and 4, and after the internal combustion engine is stopped, the oil 46 is stored in the cylinder chamber 7a, and when the internal combustion engine is restarted, the oil 46 in the cylinder chamber 7a is A structure for supplying oil to a hydraulic valve lifter, comprising a hydraulic cylinder 7 configured to supply pressure to the hydraulic valve lifter 1.