{"id":6272,"date":"2021-09-16T15:09:08","date_gmt":"2021-09-16T13:09:08","guid":{"rendered":"https:\/\/www.hjs.com\/?post_type=dt_portfolio&p=6272"},"modified":"2022-04-14T09:26:33","modified_gmt":"2022-04-14T07:26:33","slug":"eheater","status":"publish","type":"dt_portfolio","link":"https:\/\/wpold.hjs.com\/en\/produkte\/eheater\/","title":{"rendered":"eHeater"},"content":{"rendered":"

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eHeater<\/h1><\/div><\/div>[vc_empty_space][vc_column_text]<\/p>\n

The key to low exhaust emissions
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Electric heating element gets exhaust aftertreatment system fully functional in next to no time<\/strong>
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\u00a0<\/strong>[\/vc_column_text][\/vc_column][\/vc_row][vc_row][vc_column width=”1\/2″][vc_column_text]Future exhaust emissions standards, such as Euro\u00a0VII, are expected to introduce significantly stricter requirements for pollutant emissions. Today\u2019s emissions aftertreatment systems function excellently at exhaust-gas temperatures above 200\u00b0C. However, during operating periods when exhaust temperatures are below this threshold, the pollutant conversion capabilities of the catalytic converters will be insufficient to meet future emissions standards. The eHeater developed by HJS cuts the length of such low-temperature periods by converting electrical energy from the vehicle\u2019s electrical system to thermal energy that is then used to heat the exhaust gases.<\/em><\/p>\n

The limit values expected for the future will be so low that aftertreatment systems will have to undertake additional measures to reduce the NOx<\/sub> emissions of vehicles in the period immediately after cold starting. Typical cold start times of commercial vehicles are between five and ten minutes, after which time the SCR system has warmed up to the point where it provides excellent NOx<\/sub> conversion.<\/p>\n

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In order to obtain favourable conditions for its SCR systems during cold starts, HJS has developed an electric heater. The core element of this device, the heating conductor, is electrically decoupled from the housing by means of insulators. During a cold start, the heating conductor is powered by the on-board electrical system and heats the exhaust mass flow. Depending on the setup, temperatures of around 1000\u00b0C can be reached in the heater, enabling downstream components of the aftertreatment system to be quickly brought up to operating temperature.[\/vc_column_text][\/vc_column][vc_column width=”1\/2″][vc_single_image image=”6265″ img_size=”full”][\/vc_column][\/vc_row][vc_row][vc_column width=”1\/2″][vc_empty_space][vc_column_text]<\/p>\n

The key features at a glance:<\/strong><\/h3>\n