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EP0588593A2 Expired / Lapsed EP ⏱️ 0.0 years remaining

Engine with pre-chamber

Assignee: Isuzu Ceramics Research Institute Co Ltd
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Filing: 1993-09-14
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Granted: —
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Expires: 2013-09-14
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Abstract

Abstract This combustion engine has a pre-chamber (103) and main chamber connected by connection passage opened and shutted by control valve, the control valve operates separately for two steps. The operation of this control valve uniformly mixes the air of the pre-chamber and the main chamber. Therefore, various fuels which contain the gas fuel are efficiently burnt.

Inventors

  • 👤 Hideo Kawamura

Bibliographic Details

Application Number —
Jurisdiction EP
Data Source google_patents
Last Synchronized 2026-11-05 23:02
CPC Classifications
F; F02; F02B; F02B19/00; F02B19/16; F02B19/165; F01; F01L; F01L3/00; F01L3/20; F01L9/00; F01L9/20; F02B19/02; F02D; F02D19/00; F02D19/02; F02D19/021; F02D19/023; F02D19/024; F02D41/00; F02D41/30; F02D41/38; F02D41/40; F02D41/401; F02M; F02M21/00; F02M21/02; F02M21/0218; F02M21/0248; F02M21/0275; F02B1/00; F02B1/02; F02B1/04; F02B3/00; F02B3/06; F02D2041/389; F02D2200/00; F02D2200/02; F02D2200/06; F02D2200/0611; F02D2200/0612; F02D41/0025; F02D41/0027; F02M21/0203; F02M21/0215; F02M21/0257; F02M21/026; F02M21/0269; Y; Y02; Y02T; Y02T10/00; Y02T10/10; Y02T10/12; Y02T10/30; Y02T10/40

Claims Analysis

Total Claims: 6
Claim 1
Independent Claim 86 words
An engine with pre-chamber comprising: a passage hole installed between a pre-chamber and main chamber; a control valve open in to said pre-chamber and close said passage hole to push; a driver for said control valve; an injection nozzle for inject a fuel to said pre-chamber; means for controlling said control valve to close when exhaust step and intake step and to open when last stage of compression step; and, means for controlling said injection nozzle for inject a fuel to pre-chamber when said exhaust step.
Claim 2
Dependent Claim 126 words
An engine with pre-chamber comprising: a passage hole installed between a pre-chamber and main chamber; a connection passage which connected between lower part of pre-chamber a nd a main chamber. a control valve open in to said pre-chamber and close said passage hole to push; a driver for said control valve; an injection nozzle for inject a fuel to said pre-chamber; means for controlling said control valve to close when exhaust step and intake step and to open when last stage of compression step wherein open said connection passage at 1st opening step and open said said passage hole and said connection passage at 2nd opening step; and, means for controlling said injection nozzle for inject a fuel to pre-chamber when said control valve is closed.
Claim 3
Dependent Claim 17 words
An engine with pre-chamber according to claim 2, further comprising: an ignition plug installed in said pre-chamber.
Claim 4
Dependent Claim 18 words
An engine with pre-chamber according to claim 1 or 2 or 3, wherein said engine's fuel is methanol.
Claim 5
Dependent Claim 19 words
An engine with pre-chamber according to claim 1 or 2 or 3, wherein said engine's fuel is natural gas.
Claim 6
Dependent Claim 24 words
An engine with pre-chamber according to claim 1 or 2 or 3, wherein said pre-chamber consist from ceramics materials having at least thermal stability.

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