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internal combustion engine

A technology of internal combustion engine and fuel pressure, applied in internal combustion piston engine, combustion engine, mechanical equipment, etc., can solve the problem of high cost of fuel injection system, achieve the effects of suppressing knocking, increasing intake air volume, and high performance

Active Publication Date: 2011-12-21
MITSUBISHI MOTORS CORP
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Therefore, in an internal combustion engine including a direct injection injector, there is a problem that the cost of the fuel injection system is high

Method used

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  • internal combustion engine
  • internal combustion engine
  • internal combustion engine

Examples

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Embodiment Construction

[0041] will refer to figure 1 and figure 2 The internal combustion engine of the present invention will be described.

[0042] figure 1 shows a schematic block diagram of an entire internal combustion engine of an embodiment of the present invention, while figure 2 The configuration around the air intake is shown.

[0043] like figure 1 As shown, a spark plug 3 for each cylinder is mounted to a cylinder head 2 of an engine body (hereinafter, referred to as "engine") 1 as an internal combustion engine (engine), and an ignition coil 4 outputting a high voltage is connected to the spark plug 3 . Furthermore, the cylinder head 2 is formed with an intake port 5 (intake passage) for each cylinder, and an intake valve 7 is provided on the combustion chamber 6 side of each intake port 5 . The intake valves 7 are opened or closed following a cam of a camshaft (not shown) that rotates according to the rotation of the engine so as to communicate or block each intake port 5 and the...

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Abstract

In an internal combustion engine, an injector injects fuel into an intake passage, an intake stroke injection means causes the injector to inject fuel in an intake stroke, an exhaust stroke injection means causes the injector to inject fuel in an exhaust stroke, a fuel pressure setting means sets fuel pressure according to a rotation speed and a load of the internal combustion engine, and an injection control means controls an operation ratio of the intake stroke injection means and the exhaust stroke injection means according to the rotation speed and the load of the internal combustion engine and the fuel pressure which is set by the fuel pressure setting means. The injection control means sets fuel injection timing of the injector.

Description

technical field [0001] The present invention relates to an internal combustion engine capable of controlling fuel injection into an intake passage without directly providing a direct injection injector inside a cylinder to obtain high performance. Background technique [0002] As an internal combustion engine (engine), an engine including a direct injection injector provided in a cylinder to directly inject fuel into the cylinder, and a port injector to inject fuel into the intake passage is known (see Patent Document 1). [0003] In an engine including a direct injection injector and a port injector, by utilizing the so-called stratified lean combustion in which a fuel-rich air-fuel mixture can be collected around the spark plug by directly injecting high-pressure fuel from the direct injection injector into the cylinder , combustion can be performed in a direction where the overall air-fuel ratio is lean, and a significant reduction in fuel consumption can be achieved. A...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): F02D41/30F02B29/04
CPCF02D2250/31F02D41/345F02D41/402Y02T10/44F02M69/044F02D2200/0602Y02T10/40
Inventor 田中大
Owner MITSUBISHI MOTORS CORP
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