发明名称 |
Vacuum-insulated exhaust treatment devices, such as catalytic converters, with passive controls |
摘要 |
A thermally-activated exhaust treatment device, such as a catalytic converter, for vehicles includes a core having an inner housing and a catalytic material. A jacket includes an outer housing enclosing the inner housing, but characteristically not contacting the inner housing. The inner and outer housings include walls forming a vacuum-drawn sealed insulation cavity around the inner housing. A temperature-activated variable insulator device is positioned within the outer housing and includes a hydrogen source and controls for controlling the variable insulator device. A vacuum-maintenance device is incorporated into the insulation cavity, and includes a small container, getter material positioned in the container, and a porous member allowing gas in the insulation cavity to communicate with the getter material. A multi-layered radiation shield is positioned in the vacuum space and is loosely coupled to the inner housing. A vacuum detector includes a visible indicator of the vacuum in the insulation cavity.
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申请公布号 |
US7431896(B2) |
申请公布日期 |
2008.10.07 |
申请号 |
US20050145339 |
申请日期 |
2005.06.02 |
申请人 |
BENTELER AUTOMOTIVE CORPORATION |
发明人 |
BIEL, JR. JOHN P.;BENSON DAVID K.;BURCH STEVEN D.;HILL, JR. FREDERICK B.;KEYSER MATTHEW A.;MEWS LANCE;RIGSBY DONALD R.;TRACY C. EDWIN |
分类号 |
B01D50/00;B01D53/94;B21D51/16;F01N3/20;F01N3/28;F01N13/14;F01N13/18 |
主分类号 |
B01D50/00 |
代理机构 |
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代理人 |
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主权项 |
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地址 |
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