EP0553364A1 Expired / Lapsed EP ⏱️ 0.0 years remaining

Water injection diesel engine

Assignee: Mitsubishi Heavy Industries Ltd

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Filing: 1992-01-24

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Granted: —

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Expires: 2012-01-24

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Abstract

Abstract Herein disclosed is a water injection Diesel engine which is freed from any burning instability even if the amount of water to be injected is increased. The water injection Diesel engine is intended for injecting fuel and water into its cylinder by a single shared fuel injection valve (40) and is equipped with change-over valves (201; 16, 116) for opening and closing a fuel passage (117) and a water passage (17) to inject the fuel and water alternately. In another mode of the present invention, the control valves (16, 116) for opening and closing a water feed passage (15) and a fuel feed passage (115), which are connected with the fuel injection valve.

Inventors

👤 Youzou Nagasaki Tech. Inst. of Mitsubishi Tosa
👤 Yoshinori Nagasaki Tech. Inst. Mitsubishi Nagae

Bibliographic Details

Application Number —

Jurisdiction EP

Data Source google_patents

Last Synchronized 2026-11-04 23:44

CPC Classifications

F; F02; F02M; F02M25/00; F02M25/022; F02M25/025; F02M25/03; F02B; F02B47/00; F02B47/02; F02M25/0221; F02M25/0225; F02M25/0227; F02M43/00; F02M43/04; F02B3/00; F02B3/06; Y; Y02; Y02T; Y02T10/00; Y02T10/10; Y02T10/12

Claims Analysis

Total Claims: 3

Claim 1

Independent Claim 46 words

A water injection Diesel engine for injecting fuel and water into an engine cylinder by one shared fuel injection valve (40), characterized in comprising change-over valve means (201) for opening or closing a fuel passage and a water passage to inject the fuel and water alternately.

Claim 2

Dependent Claim 126 words

A water injection Diesel engine comprising a shared fuel injection valve (40) for injecting fuel and water into an engine cylinder, characterized in that said fuel injection valve includes: a confluence (31) for allowing the fuel fed from a fuel injection pump via a first fuel passage and the water fed from a water tank via a water feed passage having a check valve (13) controlled by a control valve (16) to join therein; a second fuel passage (117) connecting a fuel tank and a water feed passage; and a change-over valve (201) disposed at a confluence between said water feed passage and said second fuel passage (117) for feeding the fuel and water alternately to said fuel injection valve (40) via said water feed passage.

Claim 3

Dependent Claim 178 words

A water injection Diesel engine for injecting fuel and water into an engine cylinder by one shared fuel injection valve (40), characterized in comprising: a water feed passage (15) connecting a water tank and a water passage in said fuel injection valve; a first fuel feed passage (8) connecting a fuel pump and a first fuel passage (22) in said fuel injection valve; a second fuel feed passage (115) connecting said fuel tank and a second fuel passage (130) in said fuel, injection valve; control valves (16), (116) for opening and closing said water feed passage (15) and said second fuel feed passage (115), respectively; a first confluence (31) passage disposed in said fuel injection valve for joining said first fuel passage (22) and a water passage (30) having a check valve (13); and a second confluence (131) disposed in said fuel injection valve for joining said first fuel passage (22) and a second fuel passage (130) having a check valve (113); said second confluence (131) being arranged closer to an injection port than said first confluence (31).

References Cited (Backward Citations)

US4273087A Cited

EP0104368A1 Cited

EP0459083B1 Cited

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