Engine with pre-chamber
First Claim
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1. An engine with a pre-chamber comprising:
- a main chamber;
a pre-chamber abutting said main chamber with a portion tapering towards a passage hole, said pre-chamber having a generally cylindrical shape;
a barrier between said pre-chamber and said main chamber defining the passage hole;
a control valve for opening and closing said passage hole;
a driver for opening and closing said control valve;
an injection nozzle for injecting fuel into said pre-chamber;
control means for controlling said control valve such that the control valve is in a closed position during the exhaust stroke and intake stroke and open during the last stage of the compression stroke; and
means for controlling said injection nozzle for injecting a fuel into the pre-chamber during the exhaust stroke wherein, the passage hole is opened by the increased pressure in the cylinder during the compression stroke.
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Abstract
This combustion engine has a pre-chamber and main chamber connected by a connection passage opened and shut by a 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.
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Citations
20 Claims
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1. An engine with a pre-chamber comprising:
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a main chamber; a pre-chamber abutting said main chamber with a portion tapering towards a passage hole, said pre-chamber having a generally cylindrical shape; a barrier between said pre-chamber and said main chamber defining the passage hole; a control valve for opening and closing said passage hole; a driver for opening and closing said control valve; an injection nozzle for injecting fuel into said pre-chamber; control means for controlling said control valve such that the control valve is in a closed position during the exhaust stroke and intake stroke and open during the last stage of the compression stroke; and means for controlling said injection nozzle for injecting a fuel into the pre-chamber during the exhaust stroke wherein, the passage hole is opened by the increased pressure in the cylinder during the compression stroke. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 20)
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14. An engine with a pre-chamber comprising:
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a main chamber; a pre-chamber; a barrier installed between said pre-chamber and said main chamber defining a passage hole; a control valve located in said passage hole; a driver for opening and closing said control valve; an injection nozzle for injecting fuel into said pre-chamber; control means for operating said driver such that said control valve is in a closed position during the exhaust stroke and intake stroke and open during the last stage of the compression stroke; means for controlling said injection nozzle for injecting a fuel into the pre-chamber during the exhaust stroke; and at least one connection passage connecting the lower portion of the pre-chamber and the main chamber wherein said control means opens said connection passage during a first opening step and opens said passage hole and said connection hole during a second opening step. - View Dependent Claims (15, 16)
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17. An engine with a pre-chamber comprising:
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a main chamber; a pre-chamber; a barrier installed between said pre-chamber and said main chamber defining a passage hole; a control valve located in said passage hole; a driver for opening and closing said control valve; an injection nozzle for injecting fuel into said pre-chamber; control means for operating said driver such that said control valve is in a closed position during the exhaust stroke and intake stroke and open during the last stage of the compression stroke; means for controlling said injection nozzle for injecting a fuel into the pre-chamber during the exhaust stroke; wherein the force of said control means is overcome by the force of compressed air in the main chamber during the compression stroke of the engine. - View Dependent Claims (18, 19)
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Specification