Siemens Vdo Automotive Corporation

Siemens Canada Limited

Continental Automotive Canada, Inc.

Continental Automotive Systems Corporation

Siemens Vdo Automotive Canada Inc.

Andre Veinotte

Paul Douglas Perry

Gary Michael Everingham

Gilles Delaire

Kirk Ivens

Craig Andrew Weldon

William John Boucher

Juergen Luft

A valve apparatus includes a housing, which defines an interior chamber, a baffle disposed in the interior chamber, and a volume of liquid. The housing includes first, second and third portions. The first portion includes first and second ports that communicate with the interior chamber. The second portion is spaced from the first portion along a longitudinal axis. And the third portion extends along the longitudinal axis between the first and second portions. The baffle at least partially defines a helical fluid flow path between the first and second ports, and the volume of the liquid is disposed in the second portion of the housing.

Passive pressure activation valve

An evaporative fuel vapor control system, purge valve and methods are described. The system includes a fuel supply, internal combustion engine, vapor canister, and a purge valve. The purge valve includes a sensor disposed in the body housing of the purge valve and in communication with the flow passage to provide a signal indicative of the magnitude of chemicals in the fuel vapor being provided to the engine. Various methodologies relating the system, purge valve and sensors are described.

Integrated vapor control valve with full range hydrocarbon sensor

A fuel vapor pressure management apparatus for an internal combustion engine includes a housing, a pressure operable device, and a printed circuit board. The pressure operable device moves between first and second configurations with respect to the housing. The printed circuit board is supported by the housing and includes a delay and a sensor. The delay commences upon internal combustion engine shutdown and concludes after a preset period. And the sensor indicates movement of the pressure operable device in the first configuration after the conclusion of the preset period.

Low power consumption latch circuit including a time delay for a fuel vapor pressure management apparatus

A housing and a method of using a liquid for controlling vapor flow through a valve apparatus between a canister and atmospheric conditions. The housing includes a container and a first partition that projects from the housing into the liquid and divides the vapor chamber into first and second vapor sub-chambers. A second partition projects from the container into the first vapor sub-chamber. And a third partition projects from the container into the second vapor sub-chamber. The housing contains the liquid in an upright arrangement of the valve apparatus, and prevents the liquid from flowing out of the container in a non-upright arrangement of the valve apparatus.

Housing for a liquid seal vacuum and pressure relief valve apparatus

A method of managing the saturation level of a vapor collection canister for an on-board fuel vapor emission control system. The method includes flowing the fuel vapor through a canister flow path between a first port and a second port of the vapor collection canister, and signaling with a sensor the temperature of an adsorbent disposed in the canister flow path, the sensor being exposed to the adsorbent.

Method for determining vapor canister loading using temperature

A exhaust gas recirculation assembly for an engine having an intake manifold and an exhaust manifold, the exhaust gas recirculation assembly including a flow control body, a closing member, an electric motor coupled to the closing member, and an electronic controller electrically connected to the electric motor. The flow control body includes a manifold conduit and an inlet conduit in fluid communication with the manifold conduit. The manifold conduit includes a recirculation opening and a mounting member. The mounting member is adapted to connect the manifold conduit in fluid communicate with the intake manifold. The inlet conduit includes a mounting member adapted to connect the inlet conduit in fluid communication with the exhaust manifold. The closing member is movably mounted in the manifold conduit and has a first position where the closing member closes the recirculation opening and blocks fluid communication between the inlet conduit and the manifold conduit and a second position where the closing member opens the recirculation opening and permits fluid communication between the inlet conduit and the manifold conduit and creates a pressure differential across the recirculation opening to mix fluid flowing from the inlet conduit with fluid flowing in the manifold conduit. The electronic controller selectively controls the operation of the electric motor to drive the closing member between the first position and the second position such that the fluid from the inlet conduit is mixed with the fluid flowing in the manifold conduit in a sufficient amount for combustion in the engine.

Electric actuator assembly and method for controlling an exhaust gas recirculation assembly

An apparatus and a method for managing fuel vapor pressure in a fuel system that supplies fuel to an internal combustion engine. The fuel vapor pressure management apparatus performs leak detection on a headspace of the fuel system, performs excess negative pressure relief of the headspace, performs excess positive pressure relief of the headspace, and performs a diagnostic on the purge valve. The apparatus includes a housing, a pressure operable device, and a printed circuit board. The housing defines an interior chamber. The pressure operable device separates the interior chamber into first and second portions. And the pressure operable device includes a poppet that moves along an axis and a seal that is adapted to cooperatively engage the poppet. The printed circuit board is supported by the housing in the interior chamber. And the printed circuit board includes a first sensor that is adapted to be actuated by movement of the poppet along the axis and a second sensor that measures a flow rate within the housing.

Flow sensor for purge valve diagnostic

An evaporative fuel vapor control system, purge valve and methods are described. The system includes a fuel supply, internal combustion engine, vapor canister, a bypass passage, and a purge valve. The bypass passage includes a sensor disposed in the bypass passage and in communication with the flow passage to provide a signal indicative of the magnitude of chemicals in the fuel vapor being provided to the engine. Various methodologies relating the system, purge valve and sensors are described.

Integrated vapor control valve and sensor

An integrated pressure management apparatus, system and method for minimizing resonance of a poppet. A housing defines a fluid communication passage between ports. The housing includes a first portion, which extends along an axis, and has a first surface parallel to the axis. A poppet is movable between a first configuration that prevents fluid communication between the ports, and a second configuration that permits fluid communication between the ports. The poppet includes a second portion. The second portion is translatable along the axis relative to the housing, and includes a tubular stem that has a second surface parallel to the axis. The second portion nests with the first portion so as to define a gap between the first and second surfaces. The first and second portions define a chamber, and the gap restricts fluid flow between the fluid communication passage and the chamber.

Poppet for an integrated pressure management apparatus and fuel system and method of minimizing resonance

An apparatus and a method for managing fuel vapor pressure in a fuel system that supplies fuel to an internal combustion engine. The fuel vapor pressure management apparatus performs leak detection on a headspace of the fuel system, performs excess negative pressure relief of the headspace, and performs excess positive pressure relief of the headspace. The apparatus includes a housing, a pressure operable device, and a printed circuit board. The housing defines an interior chamber. The pressure operable device separates the interior chamber into first and second portions. And the pressure operable device includes a poppet that moves along an axis and a seal that is adapted to cooperatively engage the poppet. The printed circuit board is supported by the housing in the interior chamber. And the printed circuit board includes a sensor that is adapted to be actuated by movement of the poppet along the axis.

Apparatus and method of changing printed circuit boards in a fuel vapor pressure management apparatus

A purge valve is provided for a vehicle. The purge valveincludes a bodyto be coupled to an intake manifoldof the vehicle and to a canister. The body has an orificefor communicating vapor from the canisterwith airflow in the intake manifold. A valveis movable between a first position closing the orificeand a second position opening the orifice. A shape memory alloy (SMA) structureis associated with the valve such that when electric current is provided to the SMA structureto heat the SMA structure above a transformation temperature thereof, the SMA structure transforms from an original shape to a second shape, thereby causing the valveto move from the first position to the second position, and when the current is removed from the SMA structure, the SMA structure returns to the original shape, thereby permitting the valveto return to the first position.

Automotive vapor purge valve using shape memory alloy wire

A canister purge valve for regulating fuel vapor flow between a fuel vapor collection canister and an intake manifold of an internal combustion engine. The canister purge valve includes a body defining a passage extending between a first port and a second port. The first port is adapted for fuel vapor communication with the fuel vapor collection canister. The second port is adapted for fuel vapor communication with the intake manifold of the internal combustion engine. A seat is disposed in the passage. The seat defines an aperture having a sealing surface disposed about a central axis. An elastomeric actuator extends through the aperture, and is deformable between a first configuration that engages the sealing surface to prohibit fuel vapor flow through the aperture, and a second configuration spaced from the sealing surface to permit fuel vapor flow through the aperture.

Elastomeric vapor flow control actuator

Flow sensor integrated with leak detection for purge valve diagnostic

A method of rationalizing the functioning of a fuel vapor pressure management system. The fuel vapor pressure management system is in fluid communication with a headspace of a fuel system, and the fuel system supplies fuel to an internal combustion engine of a vehicle. The method includes providing a fuel vapor pressure management apparatus detecting an absence of leaks with respect to the headspace, counting a number of leak detection tests performed by the fuel vapor pressure management apparatus, counting a number of occurrences of the fuel vapor pressure management apparatus detecting an absence of a leak, and evaluating the number of occurrences within a selected number of tests.

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Dresden, Canada

Andre Veinotte