초록

A second airflow provides for cooling the radiator of the liquid cooled internal combustion engine and for partial cooling for the electrical circuitry. This second airflow is generated by one or more electrical fans and is independent on whether or not the engine is running.

대표청구항 ▼

[ What is claimed is:] [1.] An electrical generator set comprisingan enclosure having a first and a second section, separated by a separation wall;a liquid cooled internal combustion engine having a radiator for cooling a cooling liquid and a drive shaft,an electrical generator linked to said drive

[ What is claimed is:] [1.] An electrical generator set comprisingan enclosure having a first and a second section, separated by a separation wall;a liquid cooled internal combustion engine having a radiator for cooling a cooling liquid and a drive shaft,an electrical generator linked to said drive shaft for providing electrical energy at a first voltage,an electronic circuitry for converting said electrical energy of said first voltage to at least one desired second voltage,said electronic circuitry being enclosed in a electronic box with a heat sink connected to an outside of said box;an impeller mounted on said drive shaft of said engine inside a shroud for generating a first air flow;an airflow path for guiding said first airflow from an air intake through said electronic box, through a duct connecting said electronic box to a front side of said alternator, through said alternator and said airflow generating impeller into said first section of said enclosure and through an air exit out of said enclosure;at least one fan mounted in an outside wall of said second section of said enclosure for generating a second airflow flowing from saidat least one fan along an outside of said side of said electronic box through said radiator and leaving said second section through a baffle in another outside wall of said second section of said enclosure;said radiator being located in said second section connected by hoses to said liquid cooled internal combustion engine in said first section;whereby said electronic circuitry inside said electronic box is cooled by said first airflow while said combustion engine is running and by said second airflow while said at least one fan is operating.