SAFETY VALVE AND HIGH-PRESSURE PUMP COMPRISING SAID SAFETY VALVE
摘要
<p>A fuel safety valve arranged in a fuel supply line (7) between a low-pressure pump and a high-pressure pump (2), is provided with: a valve body (40) which defines a cylindrical cavity (41) having a longitudinal axis (A) and being connected to a duct (30), and a portion (42) of a discharge duct (33) in communication with the cylindrical cavity (41); a piston (44) sliding with respect to the valve body (40) in the cylindrical cavity (41) along the longitudinal axis (A); and a spring (46) housed in a variable-volume chamber (49) defined by a portion of the cylindrical cavity (41) between the piston (44) and a closure element (47); the piston (44) being provided with a through hole (52) supplied with the fuel leading into the variable-volume chamber (49), and the valve body (40) being provided with a fuel discharge hole (56) connecting the variable-volume chamber (49) to the discharge duct (33).</p>
申请公布号
WO2009065761(A1)
申请公布日期
2009.05.28
申请号
WO2008EP65449
申请日期
2008.11.13
申请人
ROBERT BOSCH GMBH;MASELLIS, MARIACARMELA;LOIACONO, BENEDETTO;RIEDEL, THOMAS;STRIEGEL, WERNER;MEDORO, NELLO
发明人
MASELLIS, MARIACARMELA;LOIACONO, BENEDETTO;RIEDEL, THOMAS;STRIEGEL, WERNER;MEDORO, NELLO