Fuel system having pumping and filtration fuel module and flow housing for same
AssigneeCaterpillar Inc.
InventorsYe Tian, Quinton Marcus Burcar, Michael Taylor McKinley, Stephan Donald Roozenboom
Life of this patent
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Abstract
A fuel module for pumping and filtration of a fuel in a fuel system includes a flow housing, and each of an electrically powered pump, a first cartridge filter, and a second cartridge filter in sealed, direct engagement with the flow housing. The fuel module is applied in a low pressure fuel circuit feeding fuel to a high pressure fuel circuit for pressurization to an injection pressure. Electronic closed loop control techniques for the pump are also disclosed.
Claims12
A fuel module for pumping and filtration of a fuel in a fuel system for an internal combustion engine comprising:
- a flow housing forming a fuel inlet for receiving fuel to be pumped and filtered in the fuel module, and a fuel outlet;
- the flow housing further forming an outgoing pump port and an incoming pump port, a first cartridge receptacle positioned fluidly between the fuel inlet and the outgoing pump port, and a second cartridge receptacle positioned fluidly between the incoming pump port and the fuel outlet;
- a first cartridge filter installed in the first cartridge receptacle and fluidly connecting the fuel inlet to the outgoing pump port;
- a second cartridge filter installed in the second cartridge receptacle and fluidly connecting the incoming pump port to the fuel outlet;
- and
- a pump having a pump electric drive motor and attached to the flow housing such that the pump is fluidly connected to the outgoing pump port and the incoming pump port.
A flow housing for a pumping and filtration fuel module in a fuel system for an internal combustion engine comprising:
- a flow housing body including a pump side having a pump-housing interface structured for lineless installation of a pump, and including a planar pump mounting surface, an outgoing pump port and an incoming pump port each surrounded by the planar pump mounting surface, and a plurality of bolting holes formed in the flow housing body for bolting the pump to the flow housing body;
- the flow housing body further including a filter side opposite to the pump side and having formed therein each of a first filter receptacle structured to receive a first cartridge filter and a second filter receptacle structured to receive a second cartridge filter;
- the flow housing body further forming a fuel inlet to receive a fuel to be pumped and filtered in the pumping and filtration fuel module, a fuel outlet, and a plurality of internal fuel conduits;
- and
- the plurality of internal fuel conduits forming a disjunctive fuel flow path extending between the fuel inlet and the fuel outlet and interrupted at the pump-housing interface, the first filter receptacle, and the second filter receptacle, such that upon installation of the pump, the first cartridge filter, and the second cartridge filter, the fuel flow path is made continuous.
Dependencies are inferred from the claim text.