Fluid injection device
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United States of America Patent
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Jul 7, 2015
Grant Date -
Jun 12, 2014
app pub date -
Feb 14, 2014
filing date -
Sep 26, 2006
priority date (Note) -
In Force
status (Latency Note)
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Abstract
A fluid injection device includes: a pulse generation section that includes a fluid chamber whose volume is changeable, and an inlet flow passage and an outlet flow passage that are connected to the fluid chamber; a first connection flow passage connected to the outlet flow passage, having an end portion; a second connection flow passage connected to the inlet flow passage; a fluid injection opening formed at the end portion of the first connection flow passage, having a diameter smaller than the diameter of the outlet flow passage; a connection flow passage tube including the first connection flow passage and having rigidity adequate to transmit pulses of fluid flowing from the fluid chamber to the fluid injection opening; and a pressure generation section that supplies fluid to the inlet flow passage.
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