JPS6181526A - Electronic control governor for internal-combustion engine - Google Patents

Abstract

PURPOSE:To dispense with a setting space for a battery, by connecting a driving shaft of an alternator to an end part of a fuel cam shaft, while connecting an output terminal of the alternator to a circuit of an electronic control governor. CONSTITUTION:A coupling 22 locked to an end part of a shaft 23 of an alternator 24 is engaged in opposition to a coupling 21 locked to an end part of a fuel cam shaft 20. An output terminal of the alternator 24 is connected to a control circuit 30 of a solenoid actuator 16 coupled with a rack 13. With this constitution, a setting space for a battery as a power source of an electronic governor is able to make it unnecessary.

Description

DETAILED DESCRIPTION OF THE INVENTION (Field of Industrial Application) The present invention relates to an electronically controlled governor provided in an injection pump of an internal combustion engine.

(Prior art) A solenoid actuator of 1g is mounted on a rack for adjusting the fuel injection amount of a fuel injection pump, and the a, (I 1u11 circuits are electrically connected to the solenoid actuator and the rotation sensor for the governor. An electronically controlled governor for an internal combustion engine whose power source is a battery is already known (for example, Utility Model Application No. 177535/1983).

However, when an internal combustion engine is mounted on a ship, for example, it is difficult to secure sufficient installation space for the battery. Furthermore, it is often necessary to install the battery and the fuel injection pump apart from each other, and there is a risk that the governor may not function properly due to the wires getting caught in the leg, causing problems such as breakage of the wires.

(Problems to be Solved by the Invention) The conventional configuration described above requires installation space for the battery, which is essential as a power source for the electronic governor, and has the problem that a large space must be secured for the battery. ing. Furthermore, since it is necessary to provide a separate battery, there is a problem that problems such as wire breakage are likely to occur.

The present invention attempts to solve the above problems.

(Means for resolving the problem) A solenoid actuator is connected to the rack for adjusting the injection 01, and the fuel injection pump is installed in the fuel injection pump related to internal combustion problems. A rotation sensor for the governor is installed at the end of the fuel cam shaft of the engine, and a 1ill 1ill circuit is electrically connected to the solenoid actuator and rotation sensor. The drive shaft of the alternator fixed to the case of the fuel injection pump is connected to the end of the shaft, and the output QjA of the alternator is electrically connected to the above ail+ control circuit, making the alternator the power source. It is an electronic Ruri (foundation) Gaba-inu, which is an internal combustion engine.

(Example of Actual B5) In Fig. 1, one end of the rack 13 protrudes into the space formed in the wall of the case 12 of the fuel injection pump 1- for internal combustion. A concentric rod 15 is connected to the section via a link 14. D
A solenoid (not shown) installed in the solenoid actuator 16 (/i in the figure)
The solenoid actuator 16 is driven to the right and the solenoid actuator 16 is attached to the end of the booth 12 with a force i:
[Set. The other parts of the rack 13 are connected to the rack sensor 17 as shown on the right side of the figure, so that the rack sensor 17 can detect the stomach in the 1=movement position of the rack 13. There is.

One end of the fuel camshaft 20 protrudes from the lower part of the space formed at the end of the case 12, and a coupling 21 is fixed to the protrusion of the fuel 1M camshaft 20.

A claw provided at the tip of the coupling 21 engages with a claw provided on the opposing coupling 22, so that the coupling 21 rotates as a unit. A shaft 23 concentric with the fuel camshaft 20 is fitted and fixed in the center of the coupling 22, and as the shaft 23 rotates, the alternator 24 generates a Note that the alternator 24 is integrally fixed to the end of the case 12 like the solenoid actuator 16.Also, on the outer peripheral surface of the coupling 21 (J external teeth 25
h” ;j!l is pulled up, and as shown in FIG.
It is arranged on the outer peripheral side of the fuel cam 25 and turns blue when it detects the rotation of the fuel cam 20.

The control circuit section 3 of FIG. 1 is attached to the outer surface of the internal combustion (τr/l (not shown) fuel injection pump 11).
0 is the output pulse 3 from the pickup 26 (Fig. 2)
In response to the output from the rack sensor 17, the output from the rack sensor 17 detects the rotation speed of the rack 13 and the F78CM function. 2) and the rack sensor 17, and the internal combustion between 1 hole = z++ va at a predetermined number of times φλ
The solenoid actuator 16 has the ability to apply a predetermined voltage to the solenoid actuator 16 in order to In order to perform the above (= control circuit section 30, solenoid actuator 16, rack sensor 17, pickup 26
(FIG. 2) are each hypochondrially connected by wiring 31. Further, the alternator stand 24 and the control circuit section 30 are electrically connected by a wiring Pi 132, and a dielectric flow for operating the control circuit section 30 is provided.
It is adapted to be supplied by the lucinator 24.

As shown in FIG. 2, a manual lumbar 36 and a manual stopper 37 are attached to the bin 35 that projects horizontally from the rack 13, and the solenoid actuator 16
Regardless of the drive of the rod 15 by the rack 138, the rack 138 can be set to the starting position and the stopping position 41 by manual operation.

Next, the operation will be explained. °When the manual lumbar 36 is rotated by hand and the rack 13 is forcibly set to the desired position, and the internal combustion engine is started, the combustion r4 camshaft 20 rotates at the same time and the combustion engine F! From the injection pump 11, obstetrics is supplied to the sixth air. On the other hand, when the pickup 26 detects the rotation of the external teeth 25, the rotational speed of the internal combustion bolt is controlled by the control circuit 30 shown in FIG. Also, the shaft 23 rotates via the coupling 21 and the coupling 22;
2. Therefore, in the alternator 24, the AC current is R-powered,
(It is supplied to the control circuit unit 30 via the wiring 32.

71 (During operation 1, if the result of the rotational speed in the control circuit section 30 is greater than the predetermined rotational speed, the control circuit section 30t changes the voltage applied to the solenoid actuator 16, Rod 15, link 1
4, the rack 13 is driven in the direction of decreasing fuel (in the direction of the arrow). The sliding position of the rack 13 is determined by the rack sensor 17.
is detected and sent to the control circuit section 30 via the control i''lle@.

Also, if the rotational speed of the internal combustion engine is smaller than the predetermined rotational speed (13), the control circuit section 30 changes the voltage applied to the solenoid actuator 16, and moves the rack 13 in the fuel increasing direction M (reversely). direction).

As a result, the internal combustion engine automatically reaches a predetermined rotational speed by changing the supplied fuel i'8. I
I-'7 is done. When stopping the barrier, the manual switch 1 to the knob bar 37 shown in FIG. 2 are manually rotated to forcibly set the rack 13 to a position ready to be stopped. As a result, ``1 injection q1
Fuel t from pump 11: 1υ1 supply (9↓stop) [S, internal combustion engine stops running.

(Effect of the invention) The solenoid actuator 16 is connected to the rack 13 for fuel M ffl adjustment provided in the internal combustion fuel injection pump 11, and the fuel camshaft 2 of the fuel injection pump 11 is connected to the solenoid actuator 16.
A rotating mechanism for the governor (outside teeth 25, pickup 26) is provided at the end of the solenoid actuator 16.
and a control circuit (control circuit section 30) for the rotation sensor.
) is in electrical contact with the fuel injection pump 1 at the end of the camshaft 20.
] The driving phase of the A alternator 24 fixed to the case 12 (
1 to 23), and the output terminal of the alternator 24 is electrically connected to the control circuit to connect the alternator 24.
Since the power source is: (a) The installation space for a battery as a power source for the electronic control governor, which was previously required, is no longer required, and the installation space can be reduced. There is no need to install a power source in a separate location from the twist-mouth injection pump 11, so! Compared to 5aPJ321, it is much easier to use, and there is no possibility of 'JT failures such as cutting the wiring 32 due to lowering the foot.

[Brief explanation of drawings]

Fig. 1 is a partially cutaway schematic diagram of an electronic Qi'' control gabble according to the present invention, and Fig. 2 is a cross-sectional view taken along the line ■-■ of Fig. 1. 13...Rack, 16...Solenoid actuator, 20...I
I+Cam/Koma, 23...Ciseft (r! Moving axis: l,
24...Alternator, 25...External teeth (part of the rotation sensor), 26...Pickup (part of the rotation sensor), 30...Control circuit section (control t211 circuit>Special T Applicant Yanmar Diesel Co., Ltd. Agent Patent Attorney Dai Tadaka -7jl・1.-゛':2: τ1 -1

Claims (1)

[Claims] A solenoid actuator is connected to a rack for adjusting the fuel injection amount installed in the fuel injection pump of an internal combustion engine, and a rotation sensor for the governor is installed at the end of the fuel camshaft of the fuel injection pump, and control is performed by the solenoid actuator and rotation sensor. In an electronically controlled governor for an internal combustion engine to which the circuit is electrically connected, the drive shaft of an alternator fixed to the case of the fuel injection pump is connected to the end of the fuel camshaft, and the output terminal of the alternator is electrically connected to the control circuit. An electronic control governor for an internal combustion engine, characterized in that it is connected to an alternator and uses the alternator as a power source.