| 摘要 |
A valve section comprising a first portion (4) and a second portion (6), and a valve assembly comprising a first portion (4) and a plurality of second portions (6), wherein a fluid pathway comprising curved surfaces, provided on a bore of the second portions and/or on a protruding part of the first portion, provide switch backs to alter the pressure of fluid such as fuel flowing in either direction through the valve, and in an alternative embodiment, a valve section comprising a venturi provided by a narrow drilling. |
