JPS6075761A - Fuel injector of internal combustion engine - Google Patents

Abstract

(57) [Summary] This bulletin contains application data before electronic filing, so abstract data is not recorded.

Description

DETAILED DESCRIPTION OF THE INVENTION The present invention relates to a fuel injection device for an internal combustion engine (hereinafter referred to as a specific type), and more particularly, the present invention relates to a fuel injection device for an internal combustion engine (hereinafter referred to as a specific type), and more particularly, the present invention is provided with a connecting portion of an air intake duct, and includes one or more air inlet ducts. A bong device for supplying fuel directly to a discharge port device which is connected or connected to a fuel injector. a metering means in a separate body driven in temporal relation to the crankshaft or other rotary output member of the engine to deliver metered fuel to the device; A specific type of fuel injector intake product comprising a sensing device for controlling sensing parameters and sensing parameters selected to provide an appropriate air-to-fuel ratio depending on the engine load and a set of external conditions of operation. A specific fuel injection device is disclosed in which the main body including the needle device and the sensing device are directly assembled together to form a unitary body.

However, the arrangement of some types of internal combustion engines and the related equipment generally located in the side compartments of the engine, whether forming part of a motor vehicle or a stationary assembly, does not limit its air intake. While the intake duct is in a satisfactory operating position to draw air into the engine's intake manifold, the fuel injection system is designed to ensure that the entire driving force is transmitted from the crankshaft or other rotary output member of the engine to the metering device. Determining the position of the device involves various difficulties, and it is difficult to achieve both.

The present invention relates to a modification or improvement of the invention of the earlier application, and includes a main body equipped with a connecting part of an air intake duct, a device for controlling all the air flowing therein,
The main body, including the sensor and the sensing device, is formed as a structurally separate device and is configured so that it can be mounted at a remote location on the intake manifold of the engine.

Therefore, in order to ensure a satisfactory engine drawing in the first place, the air is introduced from the transfer force section to the detection device d at a predetermined position relative to the intake manifold. In order to ensure that the transmission of driving and assisting power is possible without being excessively complicated, the arrangement of the side bodies described above can be made elastic.

A vaporization device may be provided.

In some cases, the air inlet duct connection is mounted on the intake manifold, even if the intake manifold is of an extended type so that it can be used directly by multiple engines. For example, if the engine has 6 cylinders or 8 cylinders, it may be better to use a cylinder to improve the air balance, that is, to distribute the air evenly to all cylinders. Or, in order to make it approximately equal, it is necessary or preferable to introduce nitrogen into the relevant body part, the entire bend, and the nitrogen gas at more than one location.

Therefore, in the fuel injection device of the present invention as described above, in which the expansion type intake manifold is used for multiple cylinders, the related part of the air intake duct can be removed by one inch, and the intake manifold can be A unitary body mounted or adapted to be mounted mid-length, or a body of this type mounted or capable of being mounted at intervals along the side of the intake manifold. It can improve the balance of energy supplied to the cylinder.

The main body housing the intake manifold and the device may be installed at one end of or in contact with such an intake manifold. Further, the main body and the intake manifold can be provided with an opening so that the inside of the intake manifold and the circular part of the main body communicate with each other. Furthermore, inside the main body, a device f for detecting the absolute pressure inside the main body and the intake air temperature (v) can be provided. The corresponding absolute pressure in the air inlet duct for r2 and the panmeter of the wall temperature C have the same or a very close relationship.

Modifications or improvements of the present invention will be described below with reference to the accompanying drawings.

In FIG. 1, the fuel injection system according to the invention includes two main devices: a control device lO and an air inlet device, tll.
These devices are adapted to be mounted or mounted at a remote location on the intake manifold of a multi-cylinder internal combustion engine, such as a six-cylinder internal combustion engine.

The air inlet device 11 is provided with a butterfly-shaped throttle valve t actuable by a spindle 13 in order to open and close the passage 1 passing through the body of the device Ikl'llv to draw air into the Tasaka pipe 12. It's okay. Also, special application 1972-25
As described in No. 089, a vaporizing device may be provided. One control device 10 is supplied with liquid fuel such as volatile oil through the intake port, and is connected to a rectifying distribution valve 15 and a free or shuttle piston assembly. The pump device control device 10 for distributing fuel to a metering device consisting of a metering device includes a bellows 17 for detecting the absolute total pressure inside the main body, and air temperatures inside the main body 17 and 4, respectively. A sensing device consisting of temperature elements 18 and 19 is provided for sensing all the temperature parameters which are transmitted to the temperature sensing elements 9 in a suitable manner.

The body of the device 100 is communicated with the interior of the intake manifold via overlapping openings 20 and 21 in the end of the manifold and adjacent walls of the body, respectively.

Because of this communication, the bellows 17 can detect the absolute pressure inside the mosquito retardation device, and at the same time the temperature sensing element 18 can be used to ensure that the temperature is sufficiently low for the nitrogen flowing through the intake manifold 1if12. So, K to reach that 9 temperature.
Become.

It has a bonder and a metering device +biB drive ~22, and this drive shaft is driven by an internally toothed belt 23 and a toothed pulley 24.

As can be seen in particular from Figure 42, the % fuel injector 25 is mounted directly within the intake manifold, preferably at a position d opposite the engine intake.

The main body of the control device 100 may be manufactured in one seamless piece, but it is also within the scope of the present invention to manufacture it from a plurality of assembled elements, and this also applies to the sudden intake device 11. It is.

For example, if the engine is a 6-cylinder or 8-cylinder engine, air is introduced into the intake manifold α at one or more points of force, so that an equal air flow i, which is almost equal to V, can be obtained in all cylinders. It is desirable to do so. In order to meet this requirement M'R, the relevant parts of the air inlet ducts must be placed at spaced intervals along the length of the intake manifolds on multiple bodies with Lr4 rectangular throttle boxes. It can be installed to improve the balance of air to all air grooves. Simultaneously with such an arrangement, a single body containing the metering device H1 and the sensing device can be used.

5. Figure αU 18] Vehicle Explanation Figure 1 is a side view and partial vertical cross-sectional view showing a specific example of the modification or advantage of the present invention. −
2 is a cross-sectional view along line 2, and the third line is an end view of one of the two bodies of the device.

10...if+IJ+wholesale device tb l 1...
... Desirable intake O device, 12 ... Intake manifold, 13 ... Spindle, 14 ... Bonder device, 15 ... Rectifier distribution valve Device, 16...
...free piston or shuttle piston assembly device,
17...Vacuum bellows, 18,19...
Temperature detection element, 20.21...Opening, 22.
...Drive shaft.

Patent Applicant: GKN Transmissions Limited

Claims (1)

[Claims] A single pressure-sensing device sufficiently isolated from the external air pressure within the body of the device to determine the absolute pressure e in the air inlet duct and a temperature response to detect the air in the air inlet duct. a sensing device and a mechanism operative between the sensing device and the metering device to control operation of the metering device as a function of absolute temperature in the air inlet duct and nitrogen temperature garden;
Each of the detection vessels 14 is a fuel injection device for an internal combustion engine that is designed to provide a linear output, and is equipped with all the connecting parts of the air intake duct, and is designed to control (discharge and discharge) the flow of air inside. a main body including a metering device and a sensing device; the main body includes a metering device and a sensing device;
Fuel injection device for an internal combustion engine, characterized in that it is formed as a structurally separate device, which can be attached to a fuel injection device.