| 摘要 |
<p>A needless injector (1) comprises a housing (2) containing a series of components in a circuit comprising a pyrotechnic gas generator with an initiator, a reservoir for the liquid to be injected, and an injection system. A needless injector (1) comprises a housing (2) containing a series of components in a circuit comprising a pyrotechnic gas generator with an initiator, a reservoir for the liquid to be injected, and an injection system. The gas generator consists of a pyrotechnic charge (62) inside a combustion chamber (4) which is separated into two compartments (V1, V2) by a partition (40) with a passage (41) that acts as a gas pressure regulator. The charge is located in a first sub-section (V10) of the first compartment (V1) which is initially closed by a second regulator in the form of a seal that bursts at a given pressure.</p> |
