公开(公告)号：US20150330313A1

公开(公告)日：2015-11-19

申请号：US14711304

申请日：2015-05-13

Applicant: DENSO CORPORATION

Inventor： Kazuaki UEDA ,  Tomoaki NAKANO ,  Shigeru MAEDA ,  Masataka NISHIKORI ,  Shuhei OE ,  Hikaru KOKUMAI

IPC: F02D13/02

CPC classification number: F02D13/0219 ,  F01L1/34 ,  F02D13/0215 ,  F02D13/0269 ,  F02D41/0005 ,  F02D41/123 ,  F02D41/22 ,  F02D2013/0292 ,  F02D2041/001 ,  Y02T10/142 ,  Y02T10/42

Abstract: A control system for an internal combustion engine has an intake valve, an exhaust valve, and an exhaust purifying catalyst that purifies exhaust gas after combustion of a fuel. During a fuel cut in which no fuel is supplied, a closing timing of the intake valve is controlled to a delayed angle side more than at a timing when the fuel is supplied and to a delayed angle side more than at a timing at a bottom dead center of an intake stroke, and an opening timing of the exhaust valve is controlled to an advanced angle side more than at the timing when the fuel is supplied and to an advanced angle side more than at the timing at the bottom dead center of an expansion stroke.

Abstract translation: 用于内燃机的控制系统具有净化燃料燃烧后的废气的进气阀，排气阀和排气净化催化剂。 在没有燃料供给的燃料切断期间，进气门的关闭正时比在燃料被供给的时间更多地控制到延迟角度一侧，并且比在下死点的定时更长的延迟角度 进气行程的中心，并且排气门的打开正时被控制为比在燃料被供给的时刻更大的提前角侧，并且超过在膨胀的下死点的定时处的提前角侧 行程。

公开(公告)号：US20150167797A1

公开(公告)日：2015-06-18

申请号：US14573296

申请日：2014-12-17

Applicant: DENSO CORPORATION

Inventor： Hitoshi NOGUCHI ,  Hiroshi OKADA ,  Tomoaki NAKANO ,  Yoshihiro YAMASHITA ,  Yousuke YAMAMOTO ,  Kazuhisa HARA ,  Toshihisa NAKAJIMA ,  Kazuki MATSUO ,  Toshikazu MORI ,  Shuhei OE ,  Hikaru KOKUMAI ,  Kiyoshi IWADE

IPC: F16H7/12 ,  B60W10/08 ,  F02N15/02 ,  B60W20/00 ,  F02B67/06

CPC classification number: F16H7/1281 ,  F02B67/06 ,  F02N11/04 ,  F02N11/0814 ,  F02N11/0844 ,  F02N15/02 ,  F02N15/08 ,  F02N2200/125 ,  F16H2007/0812 ,  F16H2007/0885 ,  Y02T10/48 ,  Y10S903/909 ,  Y10T477/23

Abstract: A power transmission system transmits power from an internal combustion engine to a first and a second auxiliary device through an endless transmitting member. Prior to issuing of an engine start request, the first auxiliary device is actuated to move a tensioner pulley to a given position to increase the degree of tension of the endless transmitting member. The actuation of the first auxiliary device as an engine starter upon the issuing of the engine start request, therefore, enables a drive shaft of the engine to be rotated immediately within a required time to crank the engine. This achieves a quick start of the engine and results in a decrease in amount of time between the issuing of the engine start request and the actual start of the engine.

Abstract translation: 动力传动系统通过环形传递构件将动力从内燃机传递到第一和第二辅助装置。 在发出发动机起动请求之前，第一辅助装置被致动以将张紧器滑轮移动到给定位置以增加环形传动构件的张力。 因此，在发动发动机启动请求时作为发动机起动器的第一辅助装置的致动使得能够在所需时间内立即旋转发动机的驱动轴以使发动机起动。 这实现了发动机的快速启动，并且导致在发动发动机起动请求和发动机的实际启动之间的时间量的减少。

公开(公告)号：US20220412235A1

公开(公告)日：2022-12-29

申请号：US17894529

申请日：2022-08-24

Applicant: DENSO CORPORATION

Inventor： Hikaru KOKUMAI ,  Futoshi KAWAMURA ,  Kinya TAKAHASHI

IPC: F01L1/344

Abstract: A valve timing adjustment device includes a hydraulic oil control valve. The hydraulic oil control valve includes: an outer sleeve that is shaped in a tubular form and has a projection at an outer periphery of the outer sleeve; an inner sleeve that is located on an inner side of the outer sleeve; and a spool that is located at an inside of the inner sleeve. A reference-shape portion, which serves as a reference at a time of positioning the outer sleeve relative to the inner sleeve, is formed at an outer periphery of the projection. A seat surface of the projection, which fixes a vane rotor between the seat surface of the projection and an end portion of one of a drive shaft and a driven shaft, is shaped in a rotationally symmetric form that is rotationally symmetric around a rotational axis.