EXHAUST GAS RECIRCULATION VALVE, HAVING AN ANTI-STICK MEDIUM COATED ON A VALVE POPPET SURFACE AND/OR A VALVE SEAT SURFACE

PURPOSE: An exhaust gas recirculation valve is provided to freely separate members adhered to each other by breaking away, delaminating, chipping, or separating from the anti-stick medium itself or from an adjacent anti-stick medium by the anti-stick medium. CONSTITUTION: An exhaust gas recirculation valve, a mechanical system(200), comprises a first member(130); a second member(150) selectively operating to be contacted by the first member; and an anti-stick medium(100) coated on the outer surface of the first or the second member. The anti-stick medium actually prevents a substance included in a fluid from attaching to the outer surface of the first and second members. The anti-stick medium includes a selected material from a group of boron nitride, thin film dense chrome plating, perfluoralkoxy, and a combination of all above. © KIPO 2006 ...

Exhaust gas recirculation valve

Mechanical systems having anti-stick mediums applied thereto are provided. In one aspect, exhaust gas recirculation (EGR) valve systems having anti-stick mediums applied thereto are also provided. The anti-stick medium can be applied to any contacting surface, such as but not limited to the valve surface and/or the valve seat surface. The anti-stick medium is intended to prevent the valve surface and the valve seat surface sticking or bonding together, especially with respect to the operation of cooled or cold side EGR systems. If any materials should stick to the anti-stick medium, a portion of the anti-stick medium will break away from the surface, allowing the surface and/or component to function normally. The anti-stick medium can include, without limitation, boron nitride coatings, boron nitride aerosols, boron nitride greases, thin dense chrome platings, perfluoroalkoxy, and combinations thereof.

Regenerative pump having vanes and side channels particularly shaped to direct fluid flow

A regenerative or toric pump adds energy to a fluid using an impeller having an axis of rotation and axially spaced, radially extending first and second surfaces. A casing encloses the impeller and has a fluid inlet and a fluid outlet separated by a stripper. The casing has axially spaced, radially extending first and second sidewalls facing the first and second surfaces of the impeller respectively. Axially and radially extending blades or vanes are formed on an outer radial periphery of the impeller for driving fluid from the inlet toward the outlet as the impeller rotates about the axis of rotation. A fixed surface is formed in at least one sidewall of the casing for directing fluid back toward the impeller. Improved operating characteristics and extended range are accomplished through modification to the vane configuration of the impeller and/or by modification of the side channel configuration of the pump chamber in an asymmetrical fashion. The vanes can be modified to include a radially ...

INTEGRATED CHARGE AIR AND EGR VALVE

An engine assembly comprising an engine, a plurality of coolers, a plurality of bypasses, and at least one actuator. The engine has an exhaust manifold and an intake manifold. The gaseous fluid exiting the exhaust manifold is recirculated to the intake manifold. The exhaust gas passes through either an air cooler or a bypass. At least one actuator is operably connected to the plurality of bypasses. The bypasses have a valve which is actuated to control the flow of the gaseous fluid through the bypass as both the bypass and the cooler. Therefore, when a single actuator is used to control the valves in both bypasses, the valves in the bypasses have the same relationship with the inlets so that a single actuator movement will control both valves in the same manner. © KIPO & WIPO 2009 ...

Exhaust gas recirculation valve

Mechanical systems having anti-stick mediums applied thereto are provided. In one aspect, exhaust gas recirculation (EGR) valve systems having anti-stick mediums applied thereto are also provided. The anti-stick medium can be applied to any contacting surface, such as but not limited to the valve surface and/or the valve seat surface. The anti-stick medium is intended to prevent the valve surface and the valve seat surface sticking or bonding together, especially with respect to the operation of cooled or cold side EGR systems. If any materials should stick to the anti-stick medium, a portion of the anti-stick medium will break away from the surface, allowing the surface and/or component to function normally. The anti-stick medium can include, without limitation, boron nitride coatings, boron nitride aerosols, boron nitride greases, thin dense chrome platings, perfluoroalkoxy, and combinations thereof.

Exhaust gas recirculation valve

Mechanical systems having anti-stick mediums applied thereto are provided. In one aspect, exhaust gas recirculation (EGR) valve systems having anti-stick mediums applied thereto are also provided. The anti-stick medium can be applied to any contacting surface, such as but not limited to the valve surface and/or the valve seat surface. The anti-stick medium is intended to prevent the valve surface and the valve seat surface sticking or bonding together, especially with respect to the operation of cooled or cold side EGR systems. If any materials should stick to the anti-stick medium, a portion of the anti-stick medium will break away from the surface, allowing the surface and/or component to function normally. The anti-stick medium can include, without limitation, boron nitride coatings, boron nitride aerosols, boron nitride greases, thin dense chrome platings, perfluoroalkoxy, and combinations thereof.

Integrated charge air and EGR valve

An engine assembly ( 10 ) comprising an engine, a plurality of coolers, a plurality of bypasses, and at least one actuator ( 32 ). The engine has an exhaust manifold and an intake manifold. The gaseous fluid exiting the exhaust manifold is recirculated to the intake manifold. The exhaust gas passes through either an air cooler or a bypass. At least one actuator is operably connected to the plurality of bypasses. The bypasses have a valve ( 28, 30 ) which is actuated to control the flow of the gaseous fluid through the bypass as both the bypass and the cooler. Therefore, when a single actuator is used to control the valves in both bypasses, the valves in the bypasses have the same relationship with the inlets so that a single actuator movement will control both valves in the same manner.

Two component low pressure EGR module

An engine (10, 100, 200, 34) assembly comprising an engine (36), at least one exhaust gas recirculation valve, (54) at least one throttle valve, and an actuator (12,112,212) operably connected to the EGR valve (56) and the throttle valve (54). The actuator (12, 112, 212) can be operably connected to any predetermined combination of a predetermined number of EGR valves (56) and a predetermined number of throttle valves (54). The actuator (12, 112, 212) can be a mechanical actuator, a pneumatic actuator, a hydraulic actuator, or an electrical actuator.

Integrated charge air and EGR valve

An engine assembly (10) comprises an engine, a plurality of coolers, a plurality of bypasses, and at least one actuator (32). The engine has an exhaust manifold and an intake manifold. The gaseous fluid exiting the exhaust manifold is recirculated to the intake manifold. The exhaust gas passes through either an air cooler or a bypass. At least one actuator is operably connected to the plurality of bypasses. The bypasses have a valve (28, 30) which is actuated to control the flow of the gaseous fluid through the bypass as both the bypass and the cooler. Therefore, when a single actuator is used to control the valves in both bypasses, the valves in the bypasses have the same relationship with the inlets so that a single actuator movement will control both valves in the same manner.

Integrated charge air and egr valve

An engine assembly (10) comprising an engine, a plurality of coolers, a plurality of bypasses, and at least one actuator (32). The engine has an exhaust manifold and an intake manifold. The gaseous fluid exiting the exhaust manifold is recirculated to the intake manifold. The exhaust gas passes through either an air cooler or a bypass. At least one actuator is operably connected to the plurality of bypasses. The bypasses have a valve (28, 30) which is actuated to control the flow of the gaseous fluid through the bypass as both the bypass and the cooler. Therefore, when a single actuator is used to control the valves in both bypasses, the valves in the bypasses have the same relationship with the inlets so that a single actuator movement will control both valves in the same manner.

Extended range regenerative pump with modified impeller and/or housing

A regenerative or toric pump adds energy to a fluid using an impeller having an axis of rotation and axially spaced, radially extending first and second surfaces. A casing encloses the impeller and has a fluid inlet and a fluid outlet separated by a stripper. The casing has axially spaced, radially extending first and second sidewalls facing the first and second surfaces of the impeller respectively. Axially and radially extending blades or vanes are formed on an outer radial periphery of the impeller for driving fluid from the inlet toward the outlet as the impeller rotates about the axis of rotation. A fixed surface is formed in at least one sidewall of the casing for directing fluid back toward the impeller. Improved operating characteristics and extended range are accomplished through modification to the vane configuration of the impeller and/or by modification of the side channel configuration of the pump chamber in an asymmetrical fashion. The vanes can be modified to include a radially inward base portion extending in a generally trailing direction with respect to rotation of the impeller and a radially outward tip portion extending in a generally leading direction. The blades may also include a chamfered surface on the trailing edge of the base portion. The impeller chamber can be modified separately by expanding a side channel in the casing, or by insertion of a spacer between the side channel and the remaining portion of the casing defining the impeller chamber.

Regenerative pump having vanes and side channels particularly shaped to direct fluid flow

A regenerative or toric pump adds energy to a fluid using an impeller having an axis of rotation and axially spaced, radially extending first and second surfaces. A casing encloses the impeller and has a fluid inlet and a fluid outlet separated by a stripper. The casing has axially spaced, radially extending first and second sidewalls facing the first and second surfaces of the impeller respectively. Axially and radially extending blades or vanes are formed on an outer radial periphery of the impeller for driving fluid from the inlet toward the outlet as the impeller rotates about the axis of rotation. A fixed surface is formed in at least one sidewall of the casing for directing fluid back toward the impeller. Improved operating characteristics and extended range are accomplished through modification to the vane configuration of the impeller and/or by modification of the side channel configuration of the pump chamber in an asymmetrical fashion. The vanes can be modified to include a radially inward based portion extending in a generally trailing direction with respect to rotation of the impeller and a radially outward tip portion extending in a generally leading direction. The blades may also include a chamfered surface on the trailing edge of the base portion. The impeller chamber can be modified separately by expanding a side channel in the casing, or by insertion of a spacer between the side channel and the remaining portion of the casing defining the impeller chamber.

Regenerative pump having vanes and side channels particularly shaped to direct fluid flow