公开(公告)号：US12163493B2

公开(公告)日：2024-12-10

申请号：US18191749

申请日：2023-03-28

Applicant: DENSO CORPORATION

Inventor： Keiichirou Ishihara ,  Taiki Yasuzaka ,  Tomohiro Itoh ,  Yasuo Kato

IPC: F02M25/00 ,  F02M25/08

Abstract: A leakage diagnosis device for an evaporative fuel treatment device includes a first vent valve, a second vent valve, and a pump. The first vent valve is configured to block a first atmospheric passage, which is a main passage of an atmospheric passage and connects a canister with an atmospheric opening. The second vent valve is configured to block a second atmospheric passage, which is a bypass passage of the first atmospheric passage and connects the canister with the atmospheric opening. The pump is provided on a side of the atmospheric opening relative to the second vent valve in the second atmospheric passage, and is configured to pressurize or depressurize the second atmospheric passage. A malfunction diagnosis device performs a malfunction diagnosis based on an output value of a pressure sensor, a current value of the pump, or an output value of an air-fuel ratio sensor.

公开(公告)号：US10857873B2

公开(公告)日：2020-12-08

申请号：US16575625

申请日：2019-09-19

Applicant: DENSO CORPORATION

Inventor： Taiki Yasuzaka

IPC: B60K15/03 ,  F02M55/00 ,  B60K15/035

Abstract: An evaporated fuel treatment device includes a fuel tank that stores fuel for an internal combustion engine, a canister that adsorbs evaporated fuel generated in the fuel tank, a pump that pressurizes and depressurizes a diagnostic target system including the fuel tank, a pressure detection unit that detects pressure in the diagnostic target system, a fuel state detection unit that detects a state of the fuel in the fuel tank, a leakage diagnosis unit that diagnoses leakages of evaporated fuel from the diagnostic target system, the diagnostic target system based on a change in a detection value detected by the pressure detection unit when the pump pressurizes or depressurizes the diagnostic target system, and a diagnosis determination unit that determines whether the leakage diagnosis unit performs the diagnosis based on a change in a state detection value detected by the fuel state detection unit.

公开(公告)号：US09464600B2

公开(公告)日：2016-10-11

申请号：US14568607

申请日：2014-12-12

Applicant: DENSO CORPORATION

Inventor： Taiki Yasuzaka ,  Yasuo Kato

IPC: F02M25/08 ,  F04C29/00 ,  F04C23/00 ,  G01M3/22 ,  F04C28/06 ,  F04C25/02 ,  F04C28/02 ,  F04C18/34

CPC classification number: F02M25/0818 ,  F02M25/089 ,  F04C18/34 ,  F04C23/003 ,  F04C25/02 ,  F04C28/02 ,  F04C28/065 ,  F04C29/0071 ,  F04C2270/03 ,  G01M3/226

Abstract: A pump casing has two external communication holes communicating with an outside. A partition member partitioning an interior of the pump casing into a first space and a second space. The first space communicates with the two external communication holes. The partition member have two internal communication holes communicating the first space with the second space. A first rotor member is rotatably accommodated in the first space. A second rotor member is rotatably accommodated in the second space. A torque switching unit is configured to switch between transmission of a running torque selectively to the first rotor member and transmission of the running torque to both the first rotor member and the second rotor member.

Abstract translation: 泵壳体具有与外部连通的两个外部连通孔。 分隔构件将泵壳体的内部分隔成第一空间和第二空间。 第一空间与两个外部通信孔连通。 分隔构件具有将第一空间与第二空间连通的两个内部连通孔。 第一转子构件可旋转地容纳在第一空间中。 第二转子构件可旋转地容纳在第二空间中。 扭矩切换单元被配置为在与第一转子构件之间选择性地运行运行转矩的传动和向第一转子构件和第二转子构件向第二转子构件传递运行转矩。

公开(公告)号：US20140346719A1

公开(公告)日：2014-11-27

申请号：US14261463

申请日：2014-04-25

Applicant: DENSO CORPORATION

Inventor： Makoto Kaneko ,  Taiki Yasuzaka

IPC: F16F15/04

CPC classification number: F16F15/08 ,  F16F1/376

Abstract: A vibration insulating member is equipped between one component and an other component. The vibration insulating member includes a through hole forming portion and a contact portion. The through hole forming portion is formed of an elastic material to have a through hole in which a connection member is inserted to connect the one component with the other component. The contact portion is projected radially inward from an inner wall of the through hole forming portion. The contact portion has an inner wall on a radially inside. When the connection member is inserted in the through hole, an outer wall of the connection member forms a gap with the inner wall of the through hole forming portion and is in contact with the inner wall of the contact portion.

Abstract translation: 在一个部件和另一个部件之间安装有隔振部件。 隔振构件包括通孔形成部分和接触部分。 通孔形成部分由弹性材料形成，以具有通孔，连接构件插入其中，以将一个部件与另一个部件连接。 接触部分从通孔形成部分的内壁径向向内突出。 接触部分在径向内侧具有内壁。 当连接构件插入通孔时，连接构件的外壁与通孔形成部分的内壁形成间隙，并与接触部分的内壁接触。

公开(公告)号：US11603809B2

公开(公告)日：2023-03-14

申请号：US17486694

申请日：2021-09-27

Applicant: DENSO CORPORATION

Inventor： Keiichirou Ishihara ,  Taiki Yasuzaka ,  Yasuo Kato

IPC: F02M25/08 ,  F02D41/00 ,  F02D41/22

Abstract: A leakage diagnostic device diagnoses leakage of evaporated fuel in an evaporative fuel treatment device. The evaporative fuel treatment device purges evaporated fuel, which is generated in a fuel tank and adsorbed on a canister, to an intake passage. The leakage diagnostic device includes a vent valve that blocks a first atmospheric passage, which connects the canister with an atmospheric opening, and a pump that pressurizes and depressurizes a second atmospheric passage, which is a bypass passage of the first atmospheric passage. The malfunction diagnostic device diagnoses malfunction of the leakage diagnostic device based on an output value of a pressure sensor that detects pressure in a passage connected to the canister.

公开(公告)号：US10584663B1

公开(公告)日：2020-03-10

申请号：US16166634

申请日：2018-10-22

Applicant: DENSO International America, Inc. ,  DENSO CORPORATION

Inventor： Taiki Yasuzaka ,  Shigeru Hasegawa ,  Jeffrey Meng

IPC: F02M25/08 ,  F02M37/00 ,  F02D41/00

Abstract: An engine off natural vacuum (EONV) evaporative fuel leak check system includes a fuel tank, a heat exchanger, an air duct, a fan, a fuel temperature sensor, and a controller. The fan directs air onto the heat exchanger, and the heat exchanger heats air passing around the heat exchanger in a heat exchange process using heat from engine coolant within the heat exchanger. The air duct extends between the fuel tank and the heat exchanger and the fan moves the heated air through the air duct toward the fuel tank. The controller is configured to control the fan for moving the heated air toward the fuel tank based on a temperature of the fuel within the fuel tank, as detected by the fuel temperature sensor.

公开(公告)号：US09309949B2

公开(公告)日：2016-04-12

申请号：US14261463

申请日：2014-04-25

Applicant: DENSO CORPORATION

Inventor： Makoto Kaneko ,  Taiki Yasuzaka

IPC: F16F1/44 ,  F16F15/08 ,  F16F1/376

CPC classification number: F16F15/08 ,  F16F1/376

Abstract: A vibration insulating member is equipped between one component and an other component. The vibration insulating member includes a through hole forming portion and a contact portion. The through hole forming portion is formed of an elastic material to have a through hole in which a connection member is inserted to connect the one component with the other component. The contact portion is projected radially inward from an inner wall of the through hole forming portion. The contact portion has an inner wall on a radially inside. When the connection member is inserted in the through hole, an outer wall of the connection member forms a gap with the inner wall of the through hole forming portion and is in contact with the inner wall of the contact portion.

Abstract translation: 在一个部件和另一个部件之间安装有隔振部件。 隔振构件包括通孔形成部分和接触部分。 通孔形成部分由弹性材料形成，以具有通孔，连接构件插入其中，以将一个部件与另一个部件连接。 接触部分从通孔形成部分的内壁径向向内突出。 接触部分在径向内侧具有内壁。 当连接构件插入通孔时，连接构件的外壁与通孔形成部分的内壁形成间隙，并与接触部分的内壁接触。