Method of generating pressure pulses, a pressure pulse generator and a piston engine provided therewith
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United States of America Patent
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Apr 19, 2011
Grant Date -
Aug 16, 2007
app pub date -
Feb 17, 2005
filing date -
Feb 18, 2004
priority date (Note) -
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Abstract
A pressure pulse generator, including a pressure pulse transmitting body, a chamber, divided into a first and a second part, a first conduit that leads between a high pressure source and the first part of the chamber, a second conduit that leads between a low pressure source and the second part of the chamber, the body being displaceably arranged in the second part of the chamber and being in contact with a pressure fluid in the chamber, and with the environment and being spring loaded in a direction towards the chamber. The pressure pulse generator includes elements for opening/interrupting the communication between the first part of the chamber and the high pressure source, and elements for opening/interrupting the communication between the second part of the chamber and the low pressure source, and an operable valve body for opening/interrupting the communication between the first and second parts of the chamber.
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