公开(公告)号：US10895181B2

公开(公告)日：2021-01-19

申请号：US16033619

申请日：2018-07-12

Applicant: Hyundai Motor Company ,  Kia Motors Corp.

Inventor： Hyeon Gyun Ahn

IPC: F01N1/08 ,  F01N1/24

Abstract: A vehicle muffler may include first to third baffles to partition the internal to a housing into first to fourth chambers; a suction tube penetrating the housing, the first to third baffles in series, having an inlet at outside of the housing and an outlet in the fourth chamber, and having through-holes in the section locating in the first to third chambers; a first discharge tube penetrating the first and second baffles and the housing in series, having an inlet on the first baffle, and an outlet at outside of the housing; a second discharge tube penetrating the second and third baffles, and the housing in series, having an inlet in the second chamber, and an outlet at the outside of the housing; and a connection tube penetrating the second and third baffles in series, having an inlet in the second chamber, and an outlet in the fourth chamber.

公开(公告)号：US20180134892A1

公开(公告)日：2018-05-17

申请号：US15814025

申请日：2017-11-15

Applicant: HYUNDAI MOTOR COMPANY ,  KIA MOTORS CORPORATION

Inventor： Young Hak Jang ,  Joon Chul Park ,  Jae Hyeon Jung ,  Hyeon Gyun Ahn ,  Sung Hwan Ji ,  Deok Ki Kim ,  Chung Han Kim ,  Hee Sok Chang

IPC: C08L67/00 ,  F02M35/10

CPC classification number: C08L67/00 ,  C08L23/10 ,  C08L23/12 ,  C08L67/02 ,  C08L77/02 ,  C08L77/06 ,  C08L2201/08 ,  C08L2205/03 ,  C08L2310/00 ,  C08L2666/30 ,  C08L2666/38 ,  C08L2666/78 ,  C08L2666/82 ,  F02M35/10137

Abstract: A resin composition for intake hoses is provided. The resin composition includes a predetermined amount of polyester elastomer incorporated into a polyamide resin and a polypropylene resin and further includes an antioxidant, a heat stabilizer, a lubricant and a master batch if necessary, thereby exhibiting excellent durability, heat resistance, elongation, mechanical rigidity, pressure resistance and cold resistance, and reducing weight and production costs.

公开(公告)号：US11846216B2

公开(公告)日：2023-12-19

申请号：US17109712

申请日：2020-12-02

Applicant: Hyundai Motor Company ,  Kia Motors Corporation

Inventor： Hyeon Gyun Ahn

IPC: F01N1/02 ,  F01N1/08

CPC classification number: F01N1/023 ,  F01N2470/04 ,  F01N2470/14 ,  F01N2490/08 ,  F01N2490/155

Abstract: An exhaust system noise reduction device of a vehicle enables an exhaust system to contribute to an increase in engine output while reducing engine exhaust noise. The exhaust system noise reduction device includes a muffler housing formed to airtightly surround a rear end section of an exhaust pipe; a branch pipe branched from a front end section of the exhaust pipe while having a rear end section of the branch pipe extend through the muffler housing; a barrier wall disposed at a peripheral surface of the rear end section of the exhaust pipe to divide an inner space of the muffler housing into a first chamber and a second chamber; and a punched portion formed at the rear end section of the branch pipe and disposed in the first chamber. A resonance chamber structure for reducing exhaust noise is formed in the first chamber, thereby reducing exhaust noise.

公开(公告)号：US20210355850A1

公开(公告)日：2021-11-18

申请号：US17109712

申请日：2020-12-02

Applicant: Hyundai Motor Company ,  Kia Motors Corporation

Inventor： Hyeon Gyun Ahn

IPC: F01N1/02

Abstract: An exhaust system noise reduction device of a vehicle enables an exhaust system to contribute to an increase in engine output while reducing engine exhaust noise. The exhaust system noise reduction device includes a muffler housing formed to airtightly surround a rear end section of an exhaust pipe; a branch pipe branched from a front end section of the exhaust pipe while having a rear end section of the branch pipe extend through the muffler housing; a barrier wall disposed at a peripheral surface of the rear end section of the exhaust pipe to divide an inner space of the muffler housing into a first chamber and a second chamber; and a punched portion formed at the rear end section of the branch pipe and disposed in the first chamber. A resonance chamber structure for reducing exhaust noise is formed in the first chamber, thereby reducing exhaust noise.

公开(公告)号：US10428215B2

公开(公告)日：2019-10-01

申请号：US15814025

申请日：2017-11-15

Applicant: HYUNDAI MOTOR COMPANY ,  KIA MOTORS CORPORATION

Inventor： Young Hak Jang ,  Joon Chul Park ,  Jae Hyeon Jung ,  Hyeon Gyun Ahn ,  Sung Hwan Ji ,  Deok Ki Kim ,  Chung Han Kim ,  Hee Sok Chang

IPC: C08L23/12 ,  C08L67/00 ,  C08L77/00 ,  F02M35/10 ,  C08L67/02 ,  C08L77/02 ,  C08L77/06

Abstract: A resin composition for intake hoses is provided. The resin composition includes a predetermined amount of polyester elastomer incorporated into a polyamide resin and a polypropylene resin and further includes an antioxidant, a heat stabilizer, a lubricant and a master batch if necessary, thereby exhibiting excellent durability, heat resistance, elongation, mechanical rigidity, pressure resistance and cold resistance, and reducing weight and production costs.