Method and apparatus for injecting additives

An injection apparatus providing a plurality of additive flow paths between at least one upstream additive tank and at least one downstream fuel vessel, said apparatus comprising:

• a housing presenting a front port and at least two rear ports;
• a manifold disposed within the housing, the manifold having a first interface and a second interface;
• an additive conduit coupled with the first interface so that a first end of the additive conduit terminates at the manifold and a second end of the additive conduit is in fluid communication with the front port;
• a plurality of additive lines disposed within the housing and coupled with the second interface so that a first end of each additive line terminates at the manifold and a second end of each additive line is in fluid communication with a corresponding rear port, wherein the number of rear ports is equal to the number of additive lines coupled with the second interface;
• a plurality of valves, each disposed within one of the additive lines, wherein each of the valves is operable between an open position permitting additive flow therethrough and a closed position preventing additive flow therethrough;
• and
• a metering device coupled with the additive conduit for measuring the flow of additive therethrough.

An injection apparatus providing a plurality of additive flow paths between at least one upstream additive tank and at least one downstream fuel vessel, said apparatus comprising:

• a housing presenting a front port and at least two rear ports wherein the front port is adapted to be coupled to the fuel vessel and at least one of the rear ports is adapted to be coupled to the additive tank;
• a manifold disposed within the housing, the manifold having a first interface and a second interface;
• an additive conduit coupled with the first interface so that a first end of the additive conduit terminates at the manifold and a second end of the additive conduit is in fluid communication with the front port;
• a plurality of additive lines coupled with the second interface so that a first end of each additive line terminates at the manifold and a second end of each additive line is in fluid communication with a corresponding rear port;
• a plurality of valves disposed within the housing and coupled with the additive lines so that each valve is coupled to a corresponding additive line, wherein each of the valves is operable between an open position permitting additive flow therethrough and a closed position preventing additive flow therethrough;
• a metering device coupled with the additive conduit for measuring the flow of additive therethrough;
• and
• a circulation conduit intermediate the additive tank and the rear port.

An injection apparatus providing a plurality of additive flow paths between at least one upstream additive tank and at least one downstream fuel vessel, said apparatus comprising:

• a housing presenting a front port and at least two rear ports, wherein the front port is adapted to be coupled to the additive tank and at least one of the rear ports is adapted to be coupled to the fuel vessel;
• a manifold disposed within the housing, the manifold having a first interface and a second interface;
• an additive conduit coupled with the first interface so that a first end of the additive conduit terminates at the manifold and a second end of the additive conduit is in fluid communication with the front port;
• a plurality of additive lines coupled with the second interface so that a first end of each additive line terminates at the manifold and a second end of each additive line is in fluid communication with a corresponding rear port;
• a plurality of valves disposed within the housing and coupled with the additive lines so that each valve is coupled to a corresponding additive line, wherein each of the valves is operable between an open position permitting additive flow therethrough and a closed position preventing additive flow therethrough;
• and
• a metering device coupled with the additive conduit for measuring the flow of additive therethrough.

An injection apparatus providing a plurality of additive flow paths between at least one upstream additive tank and at least one downstream fuel tank, said apparatus comprising:

• a housing presenting a plurality of ports on the housing outer surface, wherein one or more front ports are located on a front surface and at least two rear ports are located on a rear surface;
• a manifold disposed within the housing, the manifold having first and second interfaces;
• one or more additive conduits coupled with the first interface so that a first end of each additive conduit terminates at the manifold and a second end of each additive conduit is in fluid communication with a corresponding front port;
• a plurality of additive lines coupled with the second interface so that a first end of each additive line terminates at the manifold and a second end of each additive line is in fluid communication with a corresponding rear port;
• a plurality of valves disposed within the housing and coupled with the additive lines so that each valve is coupled to a corresponding additive line, wherein each of the valves is operable between an open position permitting additive flow therethrough and a closed position preventing additive flow therethrough;
• and
• a metering device coupled with the additive conduit for measuring the flow of additive therethrough.

An injection apparatus providing a plurality of additive flow paths between at least one upstream additive tank and at least one downstream fuel vessel, said apparatus comprising:

• a housing presenting a front port and at least two rear ports;
• a manifold disposed within the housing, the manifold having a first interface and a second interface;
• an additive conduit coupled with the first interface so that a first end of the additive conduit terminates at the manifold and a second end of the additive conduit is in fluid communication with the front port;
• a plurality of additive lines coupled with the second interface so that a first end of each additive line terminates at the manifold and a second end of each additive line is in fluid communication with a corresponding rear port;
• a plurality of valves disposed within the housing and coupled with the additive lines so that each valve is coupled to a corresponding additive line, wherein each of the valves is operable between an open position permitting additive flow therethrough and a closed position preventing additive flow therethrough;
• a metering device coupled with the additive conduit for measuring the flow of additive therethrough;
• and
• an expansion port adapted for receiving an expansion apparatus presenting a number