Abstract: A procedure for checking the functionality of a metering valve (310) of a reducing agent system of a combustion engine, at which the metering device (105) is advanced from a tank (100) to the metering valve (310) with the aid of a controllable pump (12) at a constant pressure, comprising the metering valve (310) is impinged with a control variable that characterizes the causing of a status change of the metering valve (310), a variable is detected that characterized the flow rate of the pump (120), from this variable that characterizes the flow rate the functionality of the metering valve (310) is assumed.

Abstract: A system for filtering and oxidizing particulate matter produced by a gasoline direct injection engine is disclosed. In one embodiment, engine spark is controlled such that soot held by a particulate filter may be oxidized even during low engine loads.

Abstract: Methods and systems are provided to address engine pre-ignition. One or more cylinders are alternately rich and lean operated for a duration to reduce engine thermal loading while maintaining an exhaust air-to-fuel ratio around stoichiometry.

Abstract: Disclosed is a mounting bracket for mounting wall insulation to an exterior wall. The mounting bracket is a unitary piece constructed of plastic, having a vertical wall plate, a horizontal support plate that extends orthogonal to the wall plate, and a vertical reinforcing plate that extends orthogonal to the vertical wall plate and the horizontal support plate. A bore is provided in the wall plate, for fastening the mounting bracket to the exterior wall. The reinforcing plate extends beyond the length of the horizontal support plate, to provide a mounting flange that may be fastened to a vertical wall support, such as a roof batten. The area formed by the horizontal support plate and an upper portion of the wall plate provides an unobstructed support area for supporting the wall insulation.

Abstract: A system for filtering and oxidizing particulate matter produced by a gasoline direct injection engine is disclosed. In one embodiment, engine spark is controlled such that soot held by a particulate filter may be oxidized even during low engine loads.

Abstract: A method for regenerating a particulate filter is disclosed. In one example, oxygen is pumped from the intake system of a direct injection turobocharged gasoline engine to the exhaust system by a compressor. The oxygen is introduced to a particulate filter at a location upstream from the particulate filter. In this way, regeneration of a particulate filter may be accomplished without disturbing the chemistry of a three-way catalyst located in the exhaust system upstream of the particulate filter.

Abstract: A system for filtering and oxidizing particulate matter produced by a gasoline direct injection engine is disclosed. In one embodiment, engine cylinder air-fuel is adjusted to allow soot to oxidize at an upstream particulate filter while exhaust gases are efficiently processed in a downstream catalyst.

Abstract: A system for filtering and oxidizing particulate matter produced by a gasoline direct injection engine is disclosed. In one embodiment, engine cylinder air-fuel is adjusted to allow soot to oxidize at an upstream particulate filter while exhaust gases are efficiently processed in a downstream catalyst.

Abstract: A system for filtering and oxidizing particulate matter produced by a gasoline direct injection engine is disclosed. In one embodiment, engine cylinder air-fuel is adjusted to allow soot to oxidize at an upstream particulate filter while exhaust gases are efficiently processed in a downstream catalyst.

Abstract: A system for regenerating a particulate filter is disclosed. In one example, oxygen is pumped from the intake system of a direct injection turbocharged gasoline engine to the exhaust system by a compressor. Simultaneously, exhaust gases may be pumped from the exhaust system to the intake system for the purpose of reducing NOx while regenerating a particulate filter.

Abstract: A method for regenerating a particulate filter is disclosed. In one example, oxygen is pumped from the intake system of a direct injection turbocharged gasoline engine to the exhaust system by a compressor. The oxygen is introduced to a particulate filter at a location upstream from the particulate filter and downstream of a three-way catalyst. The oxygen may be regulated in part by adjusting compressor boost pressure in response to a state of particulate filter regeneration. Further, in one embodiment, engine NOx can be controlled by EGR.

Abstract: A method for regenerating a particulate filter is disclosed. In one example, oxygen is pumped from the intake system of a direct injection turobocharged gasoline engine through a cylinder and into the exhaust system by a compressor. In this way, regeneration of a particulate filter may be accomplished without an auxiliary air supply.

Abstract: A system for filtering and oxidizing particulate matter produced by a gasoline direct injection engine is disclosed. In one embodiment, engine cylinder air-fuel is adjusted to allow soot to oxidize at an upstream particulate filter while exhaust gases are efficiently processed in a downstream catalyst.

Abstract: Methods and systems are provided for managing exhaust gases from an internal combustion engine. One example exhaust system may include an EGR line configured to route a selected amount of exhaust gases from an exhaust passage of the engine toward an intake passage of the engine. A gas component reduction element may be located on the EGR line, and may be configured to reduce a quantity of one or more selected components from the selected amount of exhaust gases. A treated exhaust line may be coupled with the EGR line, and may be configured to route a first portion of the selected amount of the exhaust gases from the gas component reduction element to pass into the intake passage of the engine, and to allow a second portion of the selected amount of the exhaust gases to the atmosphere.

Abstract: The invention relates to a diagnostic method for a reagent to be introduced into an exhaust gas region of an internal combustion engine, or a precursor of the reagent, which is required to convert at least one exhaust gas component in a catalytic converter, and to a device for performing the method. A change in the load of the internal combustion engine is first determined relative to time. If a load change threshold is exceeded, a first release signal is provided. The relative reagent material fill level in the catalytic converter is further determined. If a relative fill level threshold value is exceeded, a second release signal is provided. The reagent material slack occurring downstream of the catalytic converter is compared to a reagent material slack threshold value. If the first and second release signals are present and the reagent material slack threshold value is exceeded, the reagent material is considered to be of sufficient quality.

Abstract: A procedure for checking the functionality of a metering valve (310) of a reducing agent system of a combustion engine, at which the metering device (105) is advanced from a tank (100) to the metering valve (310) with the aid of a controllable pump (12) at a constant pressure, comprising the metering valve (310) is impinged with a control variable that characterizes the causing of a status change of the metering valve (310), a variable is detected that characterized the flow rate of the pump (120), from this variable that characterizes the flow rate the functionality of the metering valve (310) is assumed.

Abstract: With a wall element with lateral connection means to form an interconnection with an adjacent identical wall element, the invention proposes that the connection means are embodied as a row of tabs arranged one above the other, whereby the tabs are arranged at an angle with respect to the surface plane of the wall element at least in the area of their free lateral ends, and whereby the wall element has at both sides tabs embodied to correspond with one another such that the tabs of two adjacent identical wall elements can be inserted into one another in a zipper-like manner due to their oblique position and form an interconnection to absorb forces that are directed crosswise to the surface plane of the wall element.

Abstract: A controller for a two-stage heat source is provide, which may be connected to either a single stage or a two-stage thermostat to provide low stage heating for a variable time period before switching to high stage heating. The controller includes at least a first terminal for receiving a signal requesting heating from a single-stage thermostat or a two-stage thermostat connected to the first terminal. A microcontroller in communication with the first terminal determines a duty cycle value for a heating cycle based on the duration in which a signal at the first terminal is present relative to the duration of the heating cycle. The microcontroller determines a low stage time limit from the duty cycle, and provides low stage heating when a signal is present at the first terminal for a time period not more than the time limit, and switches to high stage heating after the time limit.

Abstract: A remote research system, comprising: a central laboratory site equipped to be used for chemical research tests; one or several laboratory robots for performing chemical research tests; a central processing unit (CPU); one or several workstations linked to said central processing unit and set up to control said laboratory robots; one or several cameras for detecting actions of said laboratory robots when performing one of said chemical research tests, said one or several cameras being linked to said central processing unit via said one or several workstations; one or several remote user workstations linked to said central processing unit via a computer network and set up to allow remote user access to chemical research tests performed in said central laboratory site, the execution of a test performed being transmitted by said one or several cameras via said central processing unit and said computer network to said one or several remote user workstations.

Abstract: The present invention provides processes for the preparation of 3-aryloxy-3-arylpropylamines and intermediates thereof using an nucleophilic aromatic displacement in 1,3-dimethyl-2-imidazolidinone or N-methylpyrrolidinone.