Laser ignition device and operating method therefor
AssigneeRobert Bosch GmbH
InventorKlaus Stoppel
Life of this patent
Estimating the term…
Abstract
A laser ignition device for an internal combustion engine, in which the laser ignition device has at least one laser spark plug and a cooling device for temperature control, in particular cooling, of the laser spark plug. The cooling device has a cooling circuit, containing a coolant, which is thermally connectable to at least one component of the laser spark plug, a volume of the coolant contained in the cooling circuit being less than or equal to approximately 50% of a compression volume of a cylinder of the internal combustion engine, which may be less than or equal to approximately 10% of a compression volume of the cylinder of the internal combustion engine.
Claims21
A laser ignition device for an internal combustion engine, comprising:
- at least one laser spark plug;
- and
- a cooling device for temperature control for cooling of the laser spark plug;
- wherein the cooling device has a cooling circuit, containing a coolant, which is thermally connectable to at least one component of the laser spark plug, and wherein a volume of the coolant contained in the cooling circuit is less than or equal to approximately 50% of a compression volume of a cylinder of the internal combustion engine.
A laser ignition device for an internal combustion engine of a motor vehicle, comprising:
- at least one laser spark plug;
- and
- a cooling device for temperature control for cooling of the laser spark plug;
- wherein the cooling device has a cooling circuit containing a coolant, which is thermally connectable to at least one component of the laser spark plug, and wherein a volume of the coolant contained in the cooling circuit is less than or equal to approximately 0.1 L.
An internal combustion engine, comprising:
- at least one laser ignition device, including:
- at least one laser spark plug;
- and
- a cooling device for temperature control for cooling of the laser spark plug;
- wherein the cooling device has a cooling circuit, containing a coolant, which is thermally connectable to at least one component of the laser spark plug, and wherein a volume of the coolant contained in the cooling circuit is less than or equal to approximately 50% of a compression volume of a cylinder of the internal combustion engine.
A method for operating a laser ignition device for an internal combustion engine, comprising:
- using at least one laser ignition device, which includes at least one laser spark plug, and a cooling device for temperature control for cooling of the laser spark plug;
- operating the cooling device, which has a cooling circuit, containing a coolant, which is thermally connectable to at least one component of the laser spark plug, and wherein a volume of the coolant contained in the cooling circuit is less than or equal to approximately 50% of a compression volume of a cylinder of the internal combustion engine.
A method for operating a laser ignition device for an internal combustion engine of a motor vehicle, the method comprising:
- using at least one laser ignition device, which includes at least one laser spark plug and a cooling device for temperature control for cooling of the laser spark plug;
- and
- operating the cooling device, which has a cooling circuit containing a coolant, which is thermally connectable to at least one component of the laser spark plug, and wherein a volume of the coolant contained in the cooling circuit is less than or equal to approximately 0.1 L.
Dependencies are inferred from the claim text.