US 12,404,790 B2
Exhaust silencing device and system, vehicle, and exhaust silencing method
Peng Rao, Zhejiang (CN)
Assigned to ZHEJIANG GEELY HOLDING GROUP CO., LTD, Hangzhou (CN); and ZHEJIANG LIANKONG TECHNOLOGIES CO., LTD., Ningbo (CN)
Appl. No. 18/016,000
Filed by ZHEJIANG GEELY HOLDING GROUP CO., LTD, Zhejiang (CN); and ZHEJIANG LIANKONG TECHNOLOGIES CO., LTD., Zhejiang (CN)
PCT Filed Jul. 14, 2020, PCT No. PCT/CN2020/101769
§ 371(c)(1), (2) Date Jan. 13, 2023,
PCT Pub. No. WO2022/011525, PCT Pub. Date Jan. 20, 2022.
Prior Publication US 2023/0212968 A1, Jul. 6, 2023
Int. Cl. F01N 1/16 (2006.01); F01N 13/18 (2010.01)
CPC F01N 1/165 (2013.01) [F01N 1/166 (2013.01); F01N 13/1844 (2013.01)] 19 Claims
OG exemplary drawing
 
1. An exhaust silencing device, comprising an air intake pipe, a main exhaust silencing cylinder, a main exhaust pipe, a multi-way valve, at least one auxiliary exhaust silencing device, and at least one auxiliary exhaust pipe, wherein
the multi-way valve is in communication with the air intake pipe, the main exhaust pipe, and the auxiliary exhaust pipe respectively;
one end of the main exhaust silencing cylinder is in communication with the multi-way valve by means of the main exhaust pipe, and the other end of the main exhaust silencing cylinder is in communication with the outside;
one end of the auxiliary exhaust silencing device is in communication with the multi-way valve by means of the auxiliary exhaust pipe, and the other end the auxiliary exhaust silencing device is in communication with the outside;
the auxiliary exhaust silencing device comprises a housing device having a closed cavity; and
one end of the housing device is in communication with the multi-way valve by means of the auxiliary exhaust pipe, and the other end of the housing device is in communication with the outside.