公开(公告)号：US20220228528A1

公开(公告)日：2022-07-21

申请号：US17578483

申请日：2022-01-19

Applicant: TOYOTA JIDOSHA KABUSHIKI KAISHA

Inventor： Taiki KAWATE ,  Kazuhito SAKAI

IPC: F02B75/18 ,  F16C3/22 ,  F16C3/08

Abstract: A crankshaft in which vibrations can be damped effectively without changing a design of a crankcase. The crankshaft comprises a first crank section located at one end of the crankshaft, and a second crank section located at the other end of the crankshaft. In the first crank section, a mass of a first inner balance weight is greater than a mass of a first outer balance weight. In the second crank section, a mass of a second inner balance weight is greater than a mass of a second outer balance weight.

公开(公告)号：US20220290628A1

公开(公告)日：2022-09-15

申请号：US17654500

申请日：2022-03-11

Applicant: TOYOTA JIDOSHA KABUSHIKI KAISHA

Inventor： Kazuyoshi MANABE ,  Koki MIYASHIRO ,  Taiki KAWATE

IPC: F02F7/00 ,  F01L1/02

Abstract: Provided is a timing chain cover that allows suppressing vibration transmission. A timing chain cover of the present disclosure houses a timing chain transmitting a rotative force of a crankshaft to a camshaft in one end side of an internal combustion engine. The timing chain cover includes a chain cover main body and a damping resin layer formed on an abutment surface of the chain cover main body. The abutment surface abuts on an internal combustion engine main body. The damping resin layer contains a heat resistant resin and a damping filler. The damping filler converts a vibration energy into a heat energy.