Back to results
US 10,808,650 B2Granted
System and method for valve seat injection
AssigneeFord Global Technologies, LLC
InventorsJoseph F. Basmaji, Mark Madin, William Charles Ruona, John Cornell
Life of this patent
Estimating the term…
Abstract
Methods and systems are provided for implementing fluid injection through a cylinder valve seat. The engine system may include a cylinder valve with a valve head mating with a valve seat when the valve is closed. The valve seat includes an injection orifice blocked by the valve head when the cylinder valve is closed and unblocked when the cylinder valve is opened.
Claims20
An engine system comprising:
- a fuel injector;
- an intake valve coupled to a first cylinder and including a valve head;
- and
- a valve seat mating with the valve head when the intake valve is in a closed configuration,
- an injection orifice valve positioned to regulate fluid flow to an injection orifice,
- the valve seat including the injection orifice,
- where, in the closed configuration, the valve head obstructs a fluid flow of fuel, alcohol, or water through the injection orifice;
- and
- where, in an open configuration, fluid flow through the injection orifice is unobstructed by the valve head, and
- a controller with computer readable instructions stored on non-transitory memory that when executed cause the controller to:
- adjust fluid flow through the injection orifice in the valve seat by adjusting a combination of the injection orifice valve and a time that the valve head is in the open configuration based on one or more engine conditions.
8 more elements
A method for controlling an engine system, comprising:
- injecting fuel via a fuel injector;
- operating a valve to open and close the valve at selected time intervals to place the valve in an open configuration and a closed configuration;
- where, in the closed configuration, a valve head of the valve blocks a flow of a fluid from an injection orifice included in a valve seat into a cylinder;
- where, the injection orifice, in fluidic-communication with a fluid reservoir, stores the fluid;
- where, in the open configuration, the valve head in the valve is spaced away from the injection orifice;
- operating an injection orifice valve to control fluid flow to the injection orifice;
- and
- adjusting a timing of the operation of the injection orifice valve relative to when the valve head is in the open configuration.
5 more elements
An engine system comprising:
- a fuel injector;
- a valve coupled to a first cylinder, including a valve head, and designed to open and close;
- a valve seat mating with the valve head and the valve seat comprising an injection orifice;
- a valve seat fluid delivery assembly including:
- a fluid reservoir in fluidic communication with the injection orifice;
- a fluid pump designed to adjust a flowrate of a fluid flowing between the fluid reservoir and the injection orifice;
- and
- an injection orifice valve designed to regulate fluid flow between the fluid pump and the injection orifice;
- where closing the valve to mate the valve head in the valve seat blocks the injection orifice;
- and
- where opening the valve to move the valve head away from the valve seat unblocks the injection orifice,
- a controller with computer readable instructions stored on non-transitory memory that when executed cause the controller to adjust fluid flow through the injection orifice in the valve seat by adjusting the injection orifice valve and the opening of the valve.
9 more elements
Dependencies are inferred from the claim text.