Modulating bypass valve
AssigneeInternational Engine Intellectual Property Comapny, 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.
Claims13
A modulating bypass valve comprising:
- a valve housing defining a housing pocket, modulating fluid passageway and a bypassing fluid passageway through the housing;
- wherein the housing is an opening in the valve housing that is parallel to the modulating fluid passageway and located between the modulating fluid passageway and the bypassing fluid passageway;
- 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;
- wherein the shaft comprises a modulator shaft and a bypassing shaft that are coupled together with a clutch driver;
- a modulating throttle plate attached to the modular shaft and located within the modulating fluid passageway;
- a bypassing throttle plate attached to the bypassing 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 housing pocket, a modulating fluid passageway and a bypassing fluid passageway through the valve housing;
- wherein the housing pocket is an opening in the valve housing that is parallel to the modulating fluid passageway and located between the modulating fluid passageway and the bypassing fluid passageway;
- 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;
- wherein the modulator shaft and the bypassing shaft are coupled together with a clutch driver;
- 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 housing pocket, modulating fluid passageway and a bypassing fluid passageway through the valve housing;
- wherein the housing pocket is an opening in the valve housing that is parallel to the modulating fluid passageway and located between the modulating fluid passageway and the bypassing fluid passageway;
- rotating a modulating throttle plate attached to a modulator shaft within the modulating fluid passageway to selectively open and close the modulating fluid passageway;
- rotating a bypassing throttle plate attached to a bypassing shaft within the bypassing fluid passageway to selectively open and close the bypassing fluid passageway;
- wherein the modulator shaft and the bypassing shaft are coupled together with a clutch driver;
- 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.