Verfahren zur Optimierung der Kalibrierung eines Verbrennungsmotors

Method involves starting of calibration test for start condition and for calibration definite changes in the parameter are to be adjusted. At least two of the parameters, throttle valve position (2) or load, fuel-air relationship (4), firing angle (5), exhaust gas lead line (6), amount of fuel e.t.c. are to be changed in defined order. The parameters also includes injection pressure, guide blade position of a turbo compressor with variable blade position, valve lift and injecting modulation.

Mehrzylinder-Brennkraftmaschine und Verfahren zur Zylinderabschaltung

Multiple cylinder internal combustion engine (1) comprises a first lambda probe (11) and a first catalyst (12) arranged in a first exhaust gas pipe (8), a second lambda probe (13) and a second catalyst arranged in a second exhaust gas pipe (9), and a common controlled throttle valve (6) arranged in the inlet region (4) of the cylinders (A-D). Both exhaust gas pipes open into a complete exhaust gas pipe (10). - An INDEPENDENT CLAIM is also included for a process for partially switching off the multiple cylinder internal combustion engine. Preferred Features: A third catalyst is arranged in the complete exhaust gas pipe or in the second exhaust gas pipe behind the second lambda probe. The controlled throttle valve is an electronically controlled throttle valve.

Verfahren zur Entdrosselung einer Brennkraftmaschine und entdrosselte Brennkraftmaschine

Air for the internal combustion engine (1) passes through a turbocharger (2,3) compressor (4). The air line (7) downstream of the compressor divides with some air bypassing (9) the intercooler (6) and passing through a control valve (10). There is a sensor (14) downstream of the point where the bypass joins the main air line. - Air is bled off downstream of the sensor to a control module (11). This may return air to the control valve or pass it to the waste gate (13) for the turbine (5). Some of the exhaust gas (8) passes through the turbine and some of it bypasses it (12) through the waste gate.

Verfahren zur Herstellung eines Verbrennungsmotors

The method involves having a cylinder liner surrounded by a cooling agent channel where exterior to it an isolation layer is assigned. The isolation layer is within the inner walls of the cooling agent channel so that its exteriors are brought in. The isolation layer is formed with the cooling agent channel as a one piece so that the isolation layer is connected positively with the inner wall of the cooling agent channel. The isolation layer is manufactured at the same time with the cooling agent. The cooling agent channel is directly cast.

Verfahren zur Ermittlung der Stellung eines Zylinders einer Brennkraftmaschine

The cylinder setting reporting process involves varying the ignition angle and/or the injection angle about a preset angle, so that the machine can be operated in at least two different operating points with different ignition and/or injection angles, using at least one signal to report the reference cylinder setting in at least two points to determine the ignition point and the injection point of this reference cylinder.

Verfahren zur Entlüftung eines Kurbelgehäuses einer Brennkraftmaschine und Brennkraftmaschine zur Durchführung eines derartigen Verfahrens

The method involves performing load control of an internal combustion engine by a throttle valve provided in a suction line. An exhaust line is provided at a crankcase and is connected with the suction line. An electronically controllable valve (115) is arranged in the exhaust line to control the exhaust flow of the internal combustion engine depending on the operating condition of the internal combustion engine. An independent claim is also included for an internal combustion engine for the execution of a crankcase ventilating method.

Vorschlag zur Ergänzung der Bewertung des sommerlichen Wärmeschutzes nach DIN 4108-2 bei Verwaltungsgebäuden: Korrekturwerte für den zulässigen Höchstwert des Sonneneintragskennwertes Szul

In DIN 4108-2 ist ein Nachweis zum sommerlichen Wrmeschutz in Gebuden enthalten, der seit Inkrafttreten der Energieeinsparverordnung (EnEV) 2002 gesetzlich vorgeschrieben ist. Dabei handelt es sich um ein einfaches, parametrisiertes Verfahren, bei dem ein Sonneneintragskennwert S_vorh berechnet und mit dem maximal zulssigen Wert S_zul verglichen wird. Diese Formulierung ist im Ansatz sehr gut, allerdings offensichtlich für Wohngebude entwickelt worden. Im Nichtwohngebudebereich sind dagegen höhere Wrmeeintrge und verminderte Lüftungsmöglichkeiten zu erwarten. Aus diesem Grund ist eine Korrektur des Sonneneintragskennwertes S_zul für Verwaltungsgebude notwendig, die Ermittlung von entsprechenden Korrekturwerten ist Inhalt dieser Veröffentlichung.