초록 ▼

An injector system for injecting fuel and/or water into the combustion chamber of an engine cylinder having a high pressure pump with a primary piston for pumping fluid to an injector nozzle and plurality of integral control cylinders having means for discretely controlling the displacement of pisto

An injector system for injecting fuel and/or water into the combustion chamber of an engine cylinder having a high pressure pump with a primary piston for pumping fluid to an injector nozzle and plurality of integral control cylinders having means for discretely controlling the displacement of pistons in the control cylinders for altering the effective volume of fluid pumped by the primary cylinder, the fluid pumped hydraulically displacing an injector piston in the injector nozzle for displacing a nozzle discharge stem allowing a divergent spray of fuel and or water to enter the combustion chamber, wherein the high pressure pump includes an associated regulating mechanism for displacing at least one control cylinder piston according to an input derived from the operator\s power demand and the engine r.p.m.

대표청구항 ▼

An improved liquid injector system for combustion engines comprising: a liquid pump mechanism having a liquid chamber with a reciprocal drive piston, said pump mechanism containing a drive liquid, and including a delivery conduit for said drive liquid; means for connecting the reciprocal drive pisto

An improved liquid injector system for combustion engines comprising: a liquid pump mechanism having a liquid chamber with a reciprocal drive piston, said pump mechanism containing a drive liquid, and including a delivery conduit for said drive liquid; means for connecting the reciprocal drive piston to a drive source for reciprocating said drive piston in said liquid chamber; at least one control cylinder communicating with said liquid chamber, said control cylinder having a displaceable control piston for varying the effective volume of said liquid chamber and an input drive means operably connected to said control piston for displacing said control piston in said control cylinder in accordance with input variables, wherein periodic delivery of drive fluid in said delivery conduit is varied in accordance with displacement of said control piston in said control cylinder; and a liquid injector mechanism connected to a liquid source, the injector mechanism having an injector nozzle and a cylinder with a displaceable power piston separating a first liquid chamber on one side of said piston and a second liquid chamber on the other side of said piston, said first chamber being connected to said delivery conduit of said pump mechanism and said second chamber being connected to said liquid source and to said injector nozzle, wherein periodic delivery of drive liquid to said first chamber generates displacements in power piston forcing fluid from said supply source through said injector nozzle; wherein said injector nozzle has an annular divergent orifice of predetermined maximum size, said nozzle being constructed with an inner displaceable stem having a displacement stop and a conically divergent end and constructed with a fluid passage with an inner stop seat and with an outer divergent wall coincident with said conically divergent end, said stem including bias means for biasing said displacement stop away from said stop seat when fluid is not forced through said injector nozzle by said power piston, said displacement stop being displaceable against said stop seat during high pressure fluid injection, said orifice being formed between said divergent end of said stem and said divergent wall upon displacement of said stem and engagement of said stop wherein said orifice has a predefined limited discharge area for discharge of fluid in particulate spray upon injection.