公开(公告)号：US11643962B2

公开(公告)日：2023-05-09

申请号：US17486092

申请日：2021-09-27

Applicant: Kohler Co.

Inventor： Eric Pekrul ,  Martin L. Radue

IPC: F01N11/00 ,  F01N3/10 ,  F01N5/00 ,  F01N13/00 ,  F01N13/08 ,  F01N1/08 ,  F01N3/20 ,  F01N13/06 ,  F01N3/18 ,  F01N1/00 ,  F01N13/10

CPC classification number: F01N11/007 ,  F01N1/006 ,  F01N1/089 ,  F01N3/10 ,  F01N3/101 ,  F01N3/18 ,  F01N3/20 ,  F01N5/00 ,  F01N13/002 ,  F01N13/007 ,  F01N13/008 ,  F01N13/011 ,  F01N13/06 ,  F01N13/08 ,  F01N13/107 ,  F01N2340/02 ,  F01N2430/06 ,  F01N2470/00 ,  Y02T10/12

Abstract: In one aspect, a system is provided and includes an engine including an exhaust valve, an exhaust manifold downstream of the exhaust valve and a muffler downstream of the exhaust manifold. The system also includes a catalyst positioned downstream of the exhaust valve.

公开(公告)号：US11149617B2

公开(公告)日：2021-10-19

申请号：US16318123

申请日：2017-08-18

Applicant: Kohler Co.

Inventor： Eric Pekrul ,  Martin L. Radue

IPC: F01N3/00 ,  F01N11/00 ,  F01N3/10 ,  F01N5/00 ,  F01N13/00 ,  F01N13/08 ,  F01N1/08 ,  F01N3/20 ,  F01N13/06 ,  F01N3/18 ,  F01N1/00 ,  F01N13/10

Abstract: In one aspect, a system is provided and includes an engine including an exhaust valve, an exhaust manifold downstream of the exhaust valve and a muffler downstream of the exhaust manifold. The system also includes a catalyst positioned downstream of the exhaust valve.

公开(公告)号：US20190264595A1

公开(公告)日：2019-08-29

申请号：US16318123

申请日：2017-08-18

Applicant: Kohler Co.

Inventor： Eric Pekrul ,  Martin L. Radue

IPC: F01N11/00 ,  F01N13/00 ,  F01N3/10 ,  F01N13/08 ,  F01N5/00

Abstract: In one aspect, a system is provided and includes an engine including an exhaust valve, an exhaust manifold downstream of the exhaust valve and a muffler downstream of the exhaust manifold. The system also includes a catalyst positioned downstream of the exhaust valve.

公开(公告)号：US20220010716A1

公开(公告)日：2022-01-13

申请号：US17486092

申请日：2021-09-27

Applicant: Kohler Co.

Inventor： Eric Pekrul ,  Martin L. Radue

IPC: F01N11/00 ,  F01N3/10 ,  F01N5/00 ,  F01N13/00 ,  F01N13/08 ,  F01N1/08 ,  F01N3/20 ,  F01N13/06 ,  F01N3/18 ,  F01N1/00 ,  F01N13/10

Abstract: In one aspect, a system is provided and includes an engine including an exhaust valve, an exhaust manifold downstream of the exhaust valve and a muffler downstream of the exhaust manifold. The system also includes a catalyst positioned downstream of the exhaust valve.

公开(公告)号：US20130232955A1

公开(公告)日：2013-09-12

申请号：US13868780

申请日：2013-04-23

Applicant: KOHLER CO.

Inventor： Eric Pekrul ,  Eric Hudak

IPC: F01N3/10

CPC classification number: F01N3/10 ,  F01N3/22 ,  F01N3/227 ,  F01N3/34 ,  Y02T10/20

Abstract: A variety of embodiments of exhaust systems for engines including small off-road engines, and related methods of operation, are disclosed. In at least some embodiments, the exhaust system includes a first conduit that receives exhaust emissions from a first engine cylinder, and a second conduit that communicates air to a first port on the first conduit. The air mixes with the exhaust emissions within the first conduit so as to produce a chemical reaction, and a level of at least one undesirable component of the exhaust emissions is reduced. Further, the exhaust system does not include any catalytic converter. In some embodiments, the exhaust system further comprises a crankcase ventilation system.

Abstract translation: 公开了用于包括小型越野发动机的发动机的排气系统的各种实施例以及相关的操作方法。 在至少一些实施例中，排气系统包括接收来自第一发动机气缸的废气排放物的第一管道和将空气与第一管道上的第一端口连通的第二管道。 空气与第一导管内的废气排放物混合，从而产生化学反应，减少废气排放物中至少一种不希望有的成分的含量。 此外，排气系统不包括任何催化转化器。 在一些实施例中，排气系统还包括曲轴箱通风系统。

公开(公告)号：US08925298B2

公开(公告)日：2015-01-06

申请号：US13868780

申请日：2013-04-23

Applicant: Kohler Co.

Inventor： Eric Pekrul ,  Eric Hudak

IPC: F01N3/00 ,  F01N3/10 ,  F01N3/22 ,  F01N3/34

CPC classification number: F01N3/10 ,  F01N3/22 ,  F01N3/227 ,  F01N3/34 ,  Y02T10/20

Abstract: A variety of embodiments of exhaust systems for engines including small off-road engines, and related methods of operation, are disclosed. In at least some embodiments, the exhaust system includes a first conduit that receives exhaust emissions from a first engine cylinder, and a second conduit that communicates air to a first port on the first conduit. The air mixes with the exhaust emissions within the first conduit so as to produce a chemical reaction, and a level of at least one undesirable component of the exhaust emissions is reduced. Further, the exhaust system does not include any catalytic converter. In some embodiments, the exhaust system further comprises a crankcase ventilation system.