Direct in cylinder injector for gaseous fuel
OwnerBudhadeb Mahakulinventor
Life of this patent
Estimating the term…
Abstract
A novel in-cylinder fuel injector has been created for internal combustion engines using gaseous fuels such as hydrogen and low-carbon alternatives. This injector enhances the reliability and fuel efficiency of both spark-ignited and compression-ignition engines. The injector's innovative design encompasses a poppet-style valve for fuel injection and a fuel supply valve to govern fuel flow. Furthermore, it incorporates a distinct lubrication system that caters to the valve, seat, and sliding surface. Additionally, the injector includes valve actuators and a control system, effectively managing fuel injector actuation, injection timing, quantity, and valve actuation sequence. Notably, the design also integrates a lubrication system with a control valve.
Claims13
A method of operating a compressed gas injector for mounting directly in a cylinder of an internal combustion engine, comprising:
- energizing a solenoid to move a poppet valve from a closed position to an opened position, the poppet valve coupled to an injector valve stem shoulder with drilled passages;
- actuating a fuel supply valve to supply a compressed gas into the compressed gas injector via the drilled passages in response to the poppet valve moving to the opened position;
- and
- de-energizing the solenoid to move the poppet valve to the closed position, the poppet valve in contact with a valve seat when in the closed position, the poppet valve defining complementary seat angles between 25 degrees and 65 degrees.
A compressed gas injector for mounting directly in a cylinder of an internal combustion engine, comprising:
- a poppet valve;
- an injector valve stem shoulder coupled to the poppet valve, the injector valve stem shoulder defining a drilled passage through which a compressed gas can be conveyed into the compressed gas injector in response to movement of the poppet valve;
- and
- a valve seat.
A compressed gas injector mounted directly in a cylinder of an internal combustion engine, comprising:
- a nozzle;
- a poppet valve;
- and
- an injector body;
- wherein the injector body is attached to the nozzle below the poppet valve to convey compressed gas exiting from the poppet valve into the engine cylinder.
Dependencies are inferred from the claim text.