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US 2009/0212243 A1Published application
Pneumatically-operated valve for nitrous oxide injection system
OwnerDouglas W. Millsinventor
Life of this patent
Estimating the term…
Abstract
A nitrous oxide or fuel control valve (26) having flow control of nitrous oxide, fuel or other media from a fluid-delivery aperture (7) into a injection nozzle (22) of an intake manifold of an engine by actuation of an actuation piston (14) that is actuated with gas pressure. It can be structured for low-weight, short-term needs for racing and other sports uses or for heavier long-term needs of engines.
Claims19
A control valve comprising:
- a plunger stem in a valve housing;
- an inlet aperture in fluid communication from a fluid-supply aperture in the valve housing to a valve aperture in the valve housing;
- an outlet aperture in fluid communication from the valve aperture to a fluid-delivery aperture in the valve housing;
- a valve on the plunger stem;
- the valve being structured for opening and closing the outlet aperture with the plunger stem predeterminedly;
- an actuator piston secured to an activation end of the plunger stem via an attachment means;
- an expansion-pressure spring proximate the actuator piston for spring-pressing the valve closed and for allowing predetermined inlet pressure air against the actuator piston to open the valve for fluid communication intermediate the inlet aperture and the outlet aperture;
- an injection activator in communication with the actuator piston;
- and
- the injection activator being structured for actuating the valve with the plunger stem.
7 more elements
A control valve comprising:
- a plunger stem in a valve housing;
- an inlet aperture in fluid communication from a fluid-supply aperture in the valve housing to a valve aperture in the valve housing;
- an outlet aperture in fluid communication from the valve aperture to a fluid-delivery aperture in the valve housing;
- a valve on the plunger stem;
- the valve being structured for opening and closing the outlet aperture with the plunger stem predeterminedly;
- an actuator piston secured to an activation end of the plunger stem via an attachment means;
- an expansion-pressure spring proximate the actuator piston for spring-pressing the valve closed and for allowing predetermined inlet pressure air against the actuator piston to open the valve for fluid communication intermediate the inlet aperture and the outlet aperture;
- an injection activator in communication with the actuator piston;
- the injection activator being structured for actuating the valve with the plunger stem the fluid-supply aperture is structured for receiving the fluid under pressure for directing the fluid to the outlet aperture;
- the valve is the poppet valve structured on the valve end of the plunger stem for closing and opening the outlet aperture predeterminedly;
- a linear axis of the outlet aperture is orthogonal to the linear axis of the fluid-supply aperture;
- a linear axis of the valve, the linear axis of the outlet aperture and the linear axis of the plunger stem are collinear;
- a linear axis of the outlet aperture is orthogonal to the linear axis of the fluid-delivery aperture;
- the actuator cylinder has the linear axis collinear to and intermediate the plunger stem;
- said attachment means is a cap screw that passes through an actuator piston centerline to attach to the plunger stem;
- an actuation-fluid conveyance is in fluid communication with the pressure-actuation end of the actuator cylinder;
- and
- the pressure-actuation end of the actuator piston is above the stem end of the poppet valve for actuating travel of the cap screw in the valve-opening direction.
15 more elements
A control valve comprising:
- a plunger stem in a valve housing;
- an inlet aperture in fluid communication from a fluid-supply aperture in the valve housing to a valve aperture in the valve housing;
- an outlet aperture in fluid communication from the valve aperture to a fluid-delivery aperture in the valve housing;
- a valve on the plunger stem;
- the valve being structured for opening and closing the outlet aperture with the plunger stem predeterminedly;
- an actuator piston secured to an activation end of the plunger stem via an attachment means;
- an expansion-pressure spring proximate the actuator piston for spring-pressing the valve closed and for allowing predetermined inlet pressure air against the actuator piston to open the valve for fluid communication intermediate the inlet aperture and the outlet aperture;
- an injection activator in communication with the actuator piston;
- the injection activator being structured for actuating the valve with the plunger stem the fluid-supply aperture is structured for receiving the fluid under pressure for directing the fluid to the outlet aperture;
- the valve is the poppet valve structured on the valve end of the plunger stem for closing and opening the outlet aperture predeterminedly;
- a linear axis of the outlet aperture is orthogonal to the linear axis of the fluid-supply aperture;
- a linear axis of the valve, the linear axis of the outlet aperture and the linear axis of the plunger stem are collinear;
- a linear axis of the outlet aperture is orthogonal to the linear axis of the fluid-delivery aperture;
- the actuator cylinder has the linear axis collinear to and intermediate the plunger stem;
- said attachment means is a jam nut that passes through an actuator piston centerline to attach to the plunger stem;
- an actuation-fluid conveyance is in fluid communication with the pressure-actuation end of the actuator cylinder;
- and
- the pressure-actuation end of the actuator piston is above the stem end of the poppet valve for actuating travel of the jam nut in the valve-opening direction.
15 more elements
The control valve as in any one of the preceding claims in which:
- a fluid-supply conveyance is structured and positioned for fluid communication from a fluid container to the fluid-supply aperture;
- and
- a fluid-injection conveyance is structured and positioned for fluid communication from the fluid-delivery aperture to a predetermined injection nozzle.
Dependencies are inferred from the claim text.