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Engine flushing device and method of using

  • US 6,776,677 B1
  • Filed: 05/15/2003
  • Issued: 08/17/2004
  • Est. Priority Date: 05/15/2003
  • Status: Expired due to Fees
First Claim
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1. An engine flushing device for purging existing water trapped within respective cooling chambers of a first and second engines, the first and second engines having respective first and second intake ports connected to respective first and second onboard cooling lines, said device comprising:

  • a tri-junction conduit connector having a first outlet, a second outlet and an inlet, the inlet of said tri-junction conduit connector is operatively attachable to an outlet of a garden hose;

    a first conduit having an inlet and an outlet, the inlet of said first conduit is operatively attached to the first outlet said tri-junction conduit connector;

    a first shutoff valve having an inlet, an outlet and a first shutoff gate, the inlet of said first shutoff valve is operatively attached to the outlet of said first conduit, when the first shutoff gate of said first shutoff valve is positioned in a first open position then the inlet and outlet of said first shutoff valve are in fluid communications with each other, when the first shutoff gate of said first shutoff valve is positioned in a first closed position then the inlet and outlet of said first shutoff valve are not in fluid communications with each other;

    a first bypass valve having a first inlet, a second inlet, an outlet, and a first bypass gate, the first inlet of said first bypass valve is operatively attached to the outlet of said first shutoff valve, the second inlet of said first bypass valve is operatively attachable to an outlet of the first onboard cooling line, when the first bypass gate of said first bypass valve is positioned in a first bypass position then the first inlet of the first bypass valve is in fluid communications with the outlet of said first shutoff valve, when the first bypass gate of said first bypass valve is positioned in a first flow through position and when the second inlet of said first bypass valve is operatively attached to the outlet of the first onboard cooling line then the second inlet of the first bypass valve is in fluid communications with the outlet of the first onboard cooling line;

    a first fluid entry valve having a first inlet, a second inlet, an outlet and a first fluid entry gate, the first inlet of said first fluid entry valve is operatively attached to the outlet of said first bypass valve, when the first fluid entry gate of said first fluid entry valve is positioned in a first detour position then the first inlet of said first fluid entry valve is in fluid communications with the outlet of said first fluid entry valve, when the first fluid entry gate of said first fluid entry valve is positioned in an first fluid introduction position then the second inlet of said first fluid entry valve is in fluid communications with the outlet of said first fluid entry valve;

    a first tube having an inlet and an outlet, the inlet of said first tube is operatively attached to the outlet said first fluid entry valve, the outlet of said first tube is operatively attachable to the first intake port of the first engine;

    a second conduit having an inlet and an outlet, the inlet of said second conduit is operatively attached to the second outlet said tri-junction conduit connector;

    a second shutoff valve having an inlet, an outlet and a second shutoff gate, the inlet of said second shutoff valve is operatively attached to the outlet of said second conduit, when the second shutoff gate of said second shutoff valve is positioned in a second open position then the inlet and outlet of said second shutoff valve are in fluid communications with each other, when the second shutoff gate of said second shutoff valve is positioned in a second closed position then the inlet and outlet of said second shutoff valve are not in fluid communications with each other;

    a second bypass valve having a first inlet, a second inlet, an outlet, and a second bypass gate, the first inlet of said second bypass valve is operatively attached to the outlet of said second shutoff valve, the second inlet of said second bypass valve is operatively attachable to an outlet of the second onboard cooling line, when the second bypass gate of said second bypass valve is positioned in a second bypass position then the first inlet of the second bypass valve is in fluid communications with the outlet of said second shutoff valve, when the second bypass gate of said second bypass valve is positioned in a second flow through position and when the second inlet of said second bypass valve is operatively attached to the outlet of the second onboard cooling line then the second inlet of the second bypass valve is in fluid communications with the outlet of the second onboard cooling line;

    a second fluid entry valve having a first inlet, a second inlet, an outlet and a second fluid entry gate, the first inlet of said second fluid entry valve is operatively attached to the outlet of said second bypass valve, when the second fluid entry gate of said second fluid entry valve is positioned in a second detour position then the first inlet of said second fluid entry valve is in fluid communications with the outlet of said second fluid entry valve, when the second fluid entry gate of said second fluid entry valve is positioned in a second fluid introduction position then the second inlet of said second fluid entry valve is in fluid communications with the outlet of said second fluid entry valve; and

    a second tube having an inlet and an outlet, the inlet of said second tube is operatively attached to the outlet said second fluid entry valve, the outlet of said second tube is operatively attachable to the second intake port of the second engine.

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