Modulating bypass valve
AssigneeInternational Engine Intellectual Property Company, LLC
InventorsOswald Baasch, Jon A. Bigley
Life of this patent
Estimating the term…
Abstract
A modulating bypass valve includes a valve housing defining a modulating fluid passageway and a bypassing fluid passageway through the valve housing. The valve also includes a throttle plate assembly that is inserted through the valve housing and has a rotating shaft on an axis that is generally perpendicular to the modulating fluid passageway and the bypassing fluid passageway. A modulating throttle plate is attached to the shaft and located within the modulating fluid passageway. A bypassing throttle plate is attached to the shaft and located within the bypassing fluid passageway. An actuator rotates the shaft.
Claims15
A modulating bypass valve comprising:
- a valve housing defining a modulating fluid passageway and a bypassing fluid passageway through the housing;
- a throttle plate assembly inserted through the valve housing and having a rotating shaft on an axis that is generally perpendicular to the modulating fluid passageway and the bypassing fluid passageway;
- a modulating throttle plate attached to the shaft and located within the modulating fluid passageway;
- a bypassing throttle plate attached to the shaft and located within the bypassing fluid passageway;
- and
- an actuator for rotating the shaft.
A modulating bypass valve comprising:
- a valve housing defining a modulating fluid passageway and a bypassing fluid passageway through the valve housing;
- a throttle plate assembly inserted through the valve housing and having a modulator shaft on an axis that is generally perpendicular to the modulating fluid passageway, and a bypassing shaft on an axis that is generally perpendicular to the bypassing fluid passageway;
- a modulating throttle plate attached to the modulator shaft and located within the modulating fluid passageway;
- a first actuator for rotating the modulator shaft and the modulating throttle plate within the modulating fluid passageway;
- a bypassing throttle plate attached to the bypassing shaft and located within the bypassing fluid passageway;
- and
- a second actuator for rotating the bypassing shaft and the bypassing throttle plate within the bypassing fluid passageway.
A method of modulating and bypassing EGR fluid flow in a valve of an EGR system, the method comprising the steps of:
- providing a valve housing defining a modulating fluid passageway and a bypassing fluid passageway through the valve housing;
- rotating a modulating throttle plate within the modulating fluid passageway to selectively open and close the modulating fluid passageway;
- rotating a bypassing throttle plate within the bypassing fluid passageway to selectively open and close the bypassing fluid passageway;
- and
- fluidly communicating EGR fluid flow through at least one of the modulating fluid passageway and the bypassing fluid passageway.
Dependencies are inferred from the claim text.