| 摘要 |
PURPOSE: To achieve excellent atomization of fuel by arranging a support within the hole of the injector body, attaching an axial symmetic electromagnet coil and forming a reversing valve at the bottom of the injector needle. CONSTITUTION: The body 1 of an injector at the bottom of which a support 17 with a needle 18 being housed inside, is provided, has stepped holes 35, 32, 42 and within the hole 42, the support of magnetic circuit 12 is attached in the circumference. The magnetic circuit 12 has a toroid throat 51 and a coil is arranged therein. In the upper part of the center hole 29 of the support 13, a socket 53 is fitted, within the hole 39 of the socket 53, an iron piece 4 is fitted free to glide and to the upper part of this iron piece 4, a circular pallet 3 constituting a mobile element together with the iron piece 4, is fixed. A needle 18 is kept at rest by a return spring 20, the lower part of which is made to form a reversing valve 41 in cooperation with a needle seat 45.
|
