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Method for controlling operation of diesel engine, apparatus for controlling operation of diesel engine, diesel engine, and ship

An operation control, diesel engine technology, applied in engine control, fuel heat treatment device, electrical control, etc., can solve problems such as fuel quantity limitation

Inactive Publication Date: 2011-07-13
KAWASAKI HEAVY IND LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

However, in general, a torque limiter is used to prevent excessive torque, and a scavenging pressure limiter is used to balance the scavenging pressure, and the amount of fuel is also limited.

Method used

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  • Method for controlling operation of diesel engine, apparatus for controlling operation of diesel engine, diesel engine, and ship
  • Method for controlling operation of diesel engine, apparatus for controlling operation of diesel engine, diesel engine, and ship
  • Method for controlling operation of diesel engine, apparatus for controlling operation of diesel engine, diesel engine, and ship

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Embodiment Construction

[0051] Embodiments of the present invention will be described below with reference to the drawings.

[0052] figure 1 It is a system diagram of a system 100 for supplying water-emulsion fuel to a diesel engine. In this system 100 , pure fuel and clean water are mixed by a water emulsification mixer (hereinafter referred to as a mixer) 101 , and the water emulsified fuel obtained by mixing pure fuel and clean water in this way is delivered to the main engine 102 of the diesel engine. Specifically, it is sent to a fuel valve (not shown) of the main engine 102 , and a required injection amount of water-emulsion fuel is injected to a cylinder of the main engine 102 by the fuel valve. Fuel from the main unit 102 is recovered by a vent tank 103 , and the recovered fuel flows into a fuel flow path 104 and circulates to the mixer 101 .

[0053] A fuel supply pump 105 is provided on a fuel flow path 104 from a container (not shown) in which pure fuel is stored to the mixer 101 , and...

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PUM

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Abstract

Disclosed is a method for controlling the operation of a diesel engine, comprising regulating the amount of fuel injection depending upon the percentage of water injection into a fuel to control the speed of rotation of the diesel engine using a water emulsion fuel. In particular, in order to reduce the concentration of NOx in an exhaust gas, a restriction determined by taking into consideration the handling of a water emulsion fuel is added to the percentage required water injection set in a percentage water injection setting device (11), for example, by an arithmetic element (8) to regulatethe amount of fuel injection depending upon the restricted percentage water injection (x).

Description

technical field [0001] The present invention relates to an operation control method of a diesel engine using water-emulsion fuel, an operation control device for implementing such a control method, a diesel engine, and a ship using the diesel engine. Background technique [0002] In the operation control of a diesel engine, a regulator or the like is usually used to adjust the fuel injection amount to control the diesel engine speed, and feedback of the diesel engine speed is performed when the fuel injection amount is adjusted. That is to say, the set value of the diesel engine speed is compared with the actual measured value, and the fuel injection amount is increased or decreased accordingly. However, generally, a torque limiter is used to prevent excessive torque, and a scavenging pressure limiter is used to balance the scavenging pressure, and the fuel amount is also restricted. Such operation control is widely known and is an extremely common method when a diesel engi...

Claims

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Application Information

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IPC IPC(8): F02B47/02F02D1/02F02D19/12F02D45/00F02M25/022F02M31/125
CPCY02T10/126F02D2250/18F02M2200/95F02D41/1497F02M25/0228F02D2200/0611F02M31/125F02M43/00F02D19/12F02D41/0025F02D41/406F02D2200/0606F02D2250/36F02M25/0227F02M25/03Y02T10/12Y02T10/40F02B47/02F02D1/02F02M25/022
Inventor 野上哲男东田正宪
Owner KAWASAKI HEAVY IND LTD
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