| 摘要 |
<P>PROBLEM TO BE SOLVED: To finish a seal place with only one place, in spite of installing a delivery valve unit and a high pressure pipe joint in an independent part, since the high pressure pipe joint must be installed in a delivery valve unit installing recessed part, since a seal part for sealing the delivery valve unit installing recessed part and a seal part of a high pressure pipe joint part must be respectively prepared, for finishing a seal part with outside air with one place, in a conventional high pressure pump. <P>SOLUTION: For attaining the purpose, this invention installs the delivery valve unit in a recessed place from the inside, by arranging the recessed place communicating with a delivery passage from the inside of the recessed part for a pressurizing chamber arranged in a pump body. This invention constituted in this way can finish the seal part with an external part with one place of the high pressure joint part in spite of installing the delivery valve unit in the pump body regardless of the high pressure pipe joint. <P>COPYRIGHT: (C)2007,JPO&INPIT |
