초록 ▼

A gas exploder consisting of a rigid cylindrical lower member and a rigid upper member telescoping therein to form a chamber in which a gas explosion can take place is supported beneath the surface of the water from a float by means of low resilience ropes connected to the bottom of the lower member

A gas exploder consisting of a rigid cylindrical lower member and a rigid upper member telescoping therein to form a chamber in which a gas explosion can take place is supported beneath the surface of the water from a float by means of low resilience ropes connected to the bottom of the lower member so as to substantially limit its allowable downward movement. The upper member includes a piston downwardly biased within the lower member by an air spring and a hollow pedestal connected to the piston and extending freely through the float above the surface of the water to accommodate fuel, compressed air and exhaust conduits communicating with the interior of the housing. The energy of an explosion in the combustion chamber is expended primarily through rapid upward movement of the piston, which compresses the air spring and then lifts the lower member. Implosion of the resultant cavitation bubble adjacent the bottom surface of the lower member generates a pressure pulse of large peak amplitude.

대표청구항 ▼

A device for generating acoustic waves by implosion of a vapor bubble in water comprising: a. means defining an expansible sealed combustion chamber between a rigid lower member and a rigid upper member telescoping therein so as to permit limited relative vertical movement therebetween; b. means for

A device for generating acoustic waves by implosion of a vapor bubble in water comprising: a. means defining an expansible sealed combustion chamber between a rigid lower member and a rigid upper member telescoping therein so as to permit limited relative vertical movement therebetween; b. means for supporting said lower member beneath the surface of the water so as to apply a predetermined restraint to downward movement thereof; and c. means for confining an explosion within said chamber to lift said upper member and to thereby transmit a further lifting force to said lower member, whereby said vapor bubble is created beneath and adjacent said lower member.