Fuel injection apparatus for and method of internal combustion engine, and fuel injection valve
A technology of fuel injection device and fuel injection valve, which is applied in the direction of fuel injection device, internal combustion piston engine, combustion engine, etc., to achieve the effect of good efficiency
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no. 1 example
[0033] figure 1 represents a longitudinal sectional view of an internal combustion engine, figure 2 An upper cross-sectional view of the internal combustion engine is schematically shown.
[0034] The engine 1 includes: a cylinder block 2 , a cylinder head 9 , and a piston 3 inserted into the cylinder block 2 , and a combustion chamber 4 is formed by the cylinder head 9 and the piston 3 .
[0035] An intake pipe 5 and an exhaust pipe 6 formed in a cylinder head 9 lead to the combustion chamber 4 , and two intake valves 7A and 7B and two exhaust valves 8A and 8B are arranged in the cylinder head 9 .
[0036] A fuel injection valve 20 is arranged on the upstream side of the intake pipe 5 . Fuel injection valve 20 is arranged at a position where it can inject fuel toward intake valves 7A and 7B. The spark plug 10 is arranged in the upper middle part of the combustion chamber 4 .
[0037] A rectifying plate 30 is provided inside the intake pipe 5 , and a tumble control valve ...
no. 2 example
[0083] Figure 8 and Figure 9 A nozzle portion 21 of the fuel injection valve 20 of the second embodiment is shown. Figure 8 is a longitudinal sectional view of the nozzle portion 21, and Figure 9 It is a view of the nozzle portion 21 viewed from the tip side.
[0084] use Figure 8 and Figure 9 The internal combustion engine of the shown fuel injector 20 is similar to the first exemplary embodiment.
[0085] In the top end of the nozzle portion 21 of the fuel injection valve 20 , the nozzle plate 13 is fixed to the bracket 15 by the guide 14 .
[0086] A plurality of nozzles 16 are drilled into the nozzle plate 13 .
[0087] A ball valve 17 movable up and down is provided inside the bracket 15 , and by lifting the ball valve 17 , a small gap between the guide 14 and the ball valve 17 allows fuel to flow, thereby injecting fuel from the nozzle 16 .
[0088] The nozzle 16 is drilled obliquely with respect to the central axis of the fuel injection valve 20 , and X, Y,...
no. 3 example
[0123] Figure 14 is a cross-sectional view of an internal combustion engine, Figure 15 for Figure 14 floor plan.
[0124] Such as Figure 14 and Figure 15 As shown, in an internal combustion engine 51 , a piston 54 is inserted into a cylinder 53 formed in a cylinder block 52 so as to be able to reciprocate in the cylinder 53 .
[0125] A cylinder head 55 is fitted onto the top of the cylinder 53 so that a combustion chamber 61 is formed by the head of the piston 54 and the cylinder head 55 .
[0126] A spark plug 62 is provided at a central portion of the cylinder head 55 . In addition, two intake valves 56a and 56b and two exhaust valves 57a and 57b are arranged in the cylinder head 55 with a spark plug 62 at the center.
[0127] In the cylinder head 55 is formed an intake port 58 connected to the valve seats of the two intake valves 56a and 56b. The intake port 58 extends obliquely from above the cylinder 53 to the cylinder head 55, and branches into two along the...
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