摘要:
The invention relates to an injection-type combustion engine having an air intake duct for each cylinder, a fuel injection valve and a heating element arranged downstream of it in the air intake duct.In order to achieve a simple installation for the heating element, the cylinder head has an opening through which the heating element can be inserted such that its heat sink is arranged to be largely self-supporting in the cross-section of the air intake duct.
摘要:
An internal-combustion engine of the injection type comprises a cylinder (1) which is provided with an inlet channel (4) with inlet valve (5). An inlet tube (2) with fuel injector (3) is fixed on this inlet channel. A heating element with a heat sink (11, 12), electrical resistance means (16) and current supply means (14, 17, 18, 20) projects into the inlet channel of the cylinder. In order to avoid cold spot problems, the heating element (11 to 16) is not fitted in a thermally insulated manner, and is integrated in a plate (6) which is clamped between the inlet tube (2) and the head of the cylinder (1). The electrical resistance means (16) are provided in a chamber (11) whose top face forms part of the heat sink. A cylindrically curved wall (12) preferably connects to the chamber (11) and is connected to this plate by means of material bridges (10).