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The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.

The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.

Patent No.:

US 11130090 B1

PDFFull Text
Date of Patent:
Sep. 28, 2021

Filed:

Apr. 10, 2019

Fuel vapor buffering apparatus

Applicant:

A. Kayser Automotive Systems Gmbh, Einbeck, DE;

Inventor:

Heiko Freter, Einbeck, DE;

Assignee:

A. Kayser Automotive Systems GmbH, Einbeck, DE;

Attorney:

Richard M. Goldberg

Primary Examiner:

Dung H Bui

Int. Cl.
CPC ...
B01D 59/26 (2006.01); B01D 53/04 (2006.01); B01D 46/00 (2006.01); B01D 46/52 (2006.01); F02M 25/08 (2006.01); B01D 46/24 (2006.01); B01D 46/10 (2006.01); B01D 46/04 (2006.01); B01D 53/72 (2006.01); B01D 27/04 (2006.01);
U.S. Cl.
CPC ...
B01D 53/0407 (2013.01); B01D 46/0036 (2013.01); B01D 46/521 (2013.01); F02M 25/089 (2013.01); F02M 25/0854 (2013.01); B01D 27/04 (2013.01); B01D 46/0002 (2013.01); B01D 46/0008 (2013.01); B01D 46/04 (2013.01); B01D 46/10 (2013.01); B01D 46/24 (2013.01); B01D 53/72 (2013.01); B01D 2253/102 (2013.01); B01D 2257/708 (2013.01); B01D 2259/402 (2013.01); B01D 2259/41 (2013.01); B01D 2259/4516 (2013.01); F02M 25/08 (2013.01);
Abstract

A filter system (), in particular as part of a fuel vapor buffering apparatus to reduce hydrocarbon emissions, wherein the filter system () includes at least: a primary filter apparatus () including a primary filter housing () and adsorption, or respectively absorption material; and a secondary filter apparatus () including adsorption, or respectively absorption material; wherein the secondary filter apparatus () is provided on the atmosphere side to the primary filter apparatus (); and wherein the primary filter apparatus () and the secondary filter apparatus () are arranged in the filter system () such that a gas conducted into the filter system () flows through the primary filter apparatus () and the secondary filter apparatus ().

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