Shock wave generator
First Claim
1. A two-phase shock wave generator comprising:
- a combustion chamber including a first, combustion, portion having an input port and a second, detonation, portion downstream of said first portion and having an output aperture;
an air-fuel supply line, operative to feed said input port with an air-fuel mixture;
an igniter, associated with said air-fuel supply line, which ignites the air-fuel mixture in said supply line and initiates a burning front which propagates towards said input port; and
a turbulence stimulator, fixedly mounted in said combustion chamber, which enhances and controls burning of said air-fuel mixture and comprises;
a first section, situated within the combustion portion of the combustion chamber and having a preselected first gas dynamic resistance; and
a second section, situated within the detonation portion of the combustion chamber and having a preselected second gas dynamic resistance, lower than the first resistance,wherein said first resistance is such that burning of the air-fuel mixture in said combustion portion yields a predetermined pressure level suitable for initiating detonation of the remaining air-fuel mixture, in said detonation portion, and wherein said second resistance supports continued detonation of the remaining air-fuel mixture in the detonation portion.
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Accused Products
Abstract
A two-phase shock wave generator including a combustion chamber including a first, combustion, portion having an input port and a second, detonation, portion downstream of the first portion and having an output aperture; an air-fuel supply line, operative to feed the input port with an air-fuel mixture, an igniter, associated with the air-fuel supply line, which ignites the air-fuel mixture in the supply line and initiates a burning front which propagates towards the input port and a turbulence stimulator, fixedly mounted in the combustion chamber, which enhances and controls burning of the air-fuel mixture and includes a first section, situated within the combustion portion of the combustion chamber and having a preselected first gas dynamic resistance and a second section, situated within the detonation portion of the combustion chamber and having a preselected second gas dynamic resistance, lower than the first resistance, wherein the first resistance is such that burning of the air-fuel mixture in the combustion portion yields a predetermined pressure level suitable for initiating detonation of the remaining air-fuel mixture, in the detonation portion, and wherein the second resistance supports continued detonation of the remaining air-fuel mixture in the detonation portion.
40 Citations
13 Claims
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1. A two-phase shock wave generator comprising:
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a combustion chamber including a first, combustion, portion having an input port and a second, detonation, portion downstream of said first portion and having an output aperture; an air-fuel supply line, operative to feed said input port with an air-fuel mixture; an igniter, associated with said air-fuel supply line, which ignites the air-fuel mixture in said supply line and initiates a burning front which propagates towards said input port; and a turbulence stimulator, fixedly mounted in said combustion chamber, which enhances and controls burning of said air-fuel mixture and comprises; a first section, situated within the combustion portion of the combustion chamber and having a preselected first gas dynamic resistance; and a second section, situated within the detonation portion of the combustion chamber and having a preselected second gas dynamic resistance, lower than the first resistance, wherein said first resistance is such that burning of the air-fuel mixture in said combustion portion yields a predetermined pressure level suitable for initiating detonation of the remaining air-fuel mixture, in said detonation portion, and wherein said second resistance supports continued detonation of the remaining air-fuel mixture in the detonation portion. - View Dependent Claims (2, 3, 4, 5, 6)
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7. A shock wave generator comprising:
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a combustion chamber having an input port and an output aperture; an air-fuel supply line operative to feed the input port with an air-fuel mixture; an igniter, associated with said air-fuel supply line, which ignites the air-fuel mixture in said supply line and initiates a burning front which propagates towards said input port; a turbulence stimulator, fixedly mounted in said combustion chamber, which enhances and controls burning of said air-fuel mixture; and a perforated nozzle, associated with said input port, which scatters said burning front substantially upon entry of the burning front into said combustion chamber.
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8. A method of generating a shock wave using a two-phase burning process, comprising the steps of:
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supplying an air fuel mixture from an air-fuel supply line to a combustion chamber; igniting the air-fuel mixture in said supply line when said combustion chamber is filled with a preselected amount of air-fuel mixture, thereby initiating a burning front propagating towards said combustion chamber; and enhancing and controlling the burning process by stimulating turbulence in said combustion chamber, wherein the turbulence is stimulated by the steps of; imposing a preselected first gas dynamic resistance in said combustion portion during a first, combustion, phase of said burning process; and imposing a preselected second gas dynamic resistance, lower than the first gas dynamic resistance, during a second, detonation, phase of said burning process, and wherein said first resistance is such that burning of the air-fuel mixture during said combustion phase yields a predetermined pressure level suitable for initiating detonation of the remaining air-fuel mixture, during said detonation phase, and wherein said second resistance ensures controlled detonation of the remaining air-fuel mixture. - View Dependent Claims (9, 11, 12)
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10. A method of generating a shock wave comprising the steps of:
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supplying an air fuel mixture from an air-fuel supply line to a combustion chamber; igniting the air-fuel mixture in said supply line when said combustion chamber is filled with a preselected amount of air-fuel mixture, thereby initiating a burning front propagating towards said combustion chamber; scattering the burning front upon entry of the burning front into said combustion chamber; enhancing and controlling said burning process by stimulating turbulence in said combustion chamber; and detonating the air fuel mixture in said combustion chamber. - View Dependent Claims (13)
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Specification