公开(公告)号：US11815003B1

公开(公告)日：2023-11-14

申请号：US17859405

申请日：2022-07-07

Applicant: International Engine Intellectual Property Company, LLC

Inventor： Krishna Teja Medam

IPC: F01P11/18 ,  F01P3/18 ,  F01P3/20

CPC classification number: F01P11/18 ,  F01P3/18 ,  F01P3/20 ,  F01P2025/04

Abstract: The present disclosure relates to improved systems and methods for use in connection with maintaining the coolant system of a vehicle. Specifically, the present disclosure relates to improved systems and methods for monitoring the integrity of the coolant system in an engine, including capabilities for diagnosing leaks, degradation of coolant, open and/or loose radiator caps, and other sources of potential malfunctions. Early diagnosis and continuous monitoring of an engine coolant system results in earlier repairs and less vehicle downtime.

公开(公告)号：US20190195735A1

公开(公告)日：2019-06-27

申请号：US16171143

申请日：2018-10-25

Applicant: HYUNDAI MOTOR COMPANY ,  KIA MOTORS CORPORATION

Inventor： Sang Bong HAN ,  Choo Saeng CHOI ,  Sang Suk LEE

IPC: G01M15/09 ,  F01P3/08 ,  F01P11/18 ,  F01P7/14 ,  G07C5/08

CPC classification number: G01M15/09 ,  F01P3/08 ,  F01P7/14 ,  F01P11/18 ,  F01P2007/146 ,  F01P2025/04 ,  G07C5/0808

Abstract: An oil pressure switch, which is connected in an oil path of a piston oil cooling jet to diagnose oil pressure, includes an upper body and a lower body, in which a plunger vertically moves according to oil pressure; a fixing plate that is disposed between the upper body and the lower body; a moving plate that selectively contacts a fixing plate according to movement of the plunger; a spring that generates an elastic force in a direction in which the moving plate selectively contacts the fixing plate; an output terminal that outputs an output signal according to contact between the moving plate and the fixing plate; and a parallel resistor that is electrically connected with the output terminal and electrically connected with a control resistor of a controller.

公开(公告)号：US20180274430A1

公开(公告)日：2018-09-27

申请号：US15927593

申请日：2018-03-21

Applicant: Toyota Jidosha Kabushiki Kaisha ,  Osaka Gas Co., Ltd.

Inventor： Akihiro Honda ,  Saki Nakayama ,  Masahiko Matsumura ,  Koichi Nishimura

IPC: F01P7/16 ,  F15D1/06

CPC classification number: F01P7/164 ,  F01P3/20 ,  F01P2007/146 ,  F01P2025/04 ,  F01P2025/06 ,  F01P2025/32 ,  F01P2025/40 ,  F15D1/06 ,  F17D1/16

Abstract: A cooling device for an internal combustion engine includes a circulation path, a coolant temperature sensor, a coolant pump, and an electronic control unit. The electronic control unit is configured to execute processing for performing feedback control on power of the coolant pump such that the output of the coolant temperature sensor becomes a target temperature, micelle determination processing for determining whether or not micelles are added to a coolant based on pump work of the coolant pump and the flow rate of the coolant flowing through the circulation path, Toms determination processing for determining whether or not the flow rate of the coolant satisfies a Toms effect expression condition, and correction processing for increasing a relative value of the output of the coolant temperature sensor with respect to the target temperature when the micelles is added and the Toms effect expression condition is established.

公开(公告)号：US20180135503A1

公开(公告)日：2018-05-17

申请号：US15803933

申请日：2017-11-06

Applicant: Cummins Inc.

Inventor： Timothy C. Ernst ,  James A. Zigan ,  John Scott Blackwell

IPC: F01P9/02 ,  F01P3/02 ,  F01P7/14 ,  F01P11/12 ,  F01K11/02

CPC classification number: F01P9/02 ,  B60K11/02 ,  B60K11/04 ,  F01K11/02 ,  F01K23/065 ,  F01K23/10 ,  F01K23/101 ,  F01P3/02 ,  F01P3/20 ,  F01P7/14 ,  F01P7/165 ,  F01P11/12 ,  F01P11/18 ,  F01P2005/105 ,  F01P2025/04 ,  F01P2025/08 ,  F01P2025/32 ,  F01P2025/62 ,  F01P2025/66 ,  F01P2060/045 ,  F01P2060/14 ,  F01P2060/16 ,  F02G5/02 ,  Y02T10/16

Abstract: A waste heat recovery (WHR) and coolant system with active coolant pressure control includes an engine cooling system, a WHR system, and a coolant pressure control system. A coolant heat exchanger positioned along each of the engine cooling and working fluid circuits, and is structured to transfer heat from the coolant fluid to the working fluid. The coolant pressure control system includes a pressure line operatively coupled to an air brake system and to the coolant tank. A valve is coupled to the pressure line upstream of the coolant tank. A coolant pressure controller is in operative communication with each of the valve, an air pressure sensor, and a coolant temperature sensor. The coolant pressure controller is structured to determine a target coolant pressure based on a coolant temperature and control a valve position of the valve so as to cause the air pressure to approach the target coolant pressure.

公开(公告)号：US09926835B2

公开(公告)日：2018-03-27

申请号：US15255701

申请日：2016-09-02

Applicant: Hyundai Motor Company

Inventor： Su Dong Han ,  Hyung Kook Kim

IPC: B60H1/00 ,  F01P11/02 ,  F01P11/14

CPC classification number: F01P11/0285 ,  F01P11/0238 ,  F01P11/14 ,  F01P11/18 ,  F01P2025/04 ,  F01P2025/08

Abstract: A cooling system for a vehicle is provided. The system includes a valve that is disposed at a predetermined position in a cooling channel to discharge bubbles produced in a coolant out of the cooling channel. Additionally, a controller is configured to detect whether bubbles have been produced in the coolant using a rate of pressure change based on a temperature increase in the cooling channel and open the valve in response to detecting that bubbles have been produced.

公开(公告)号：US20170284275A1

公开(公告)日：2017-10-05

申请号：US15263947

申请日：2016-09-13

Applicant: HYUNDAI MOTOR COMPANY

Inventor： Jong Woo NAM

IPC: F01P5/06 ,  B60H1/32

CPC classification number: F01P5/06 ,  B60H1/3211 ,  B60H1/3227 ,  B60H2001/3248 ,  B60H2001/3255 ,  B60H2001/3266 ,  B60H2001/3277 ,  B60K11/04 ,  B60K11/085 ,  F01P7/10 ,  F01P2025/04 ,  F01P2025/13 ,  F01P2037/00 ,  F01P2050/22 ,  Y02T10/88

Abstract: The present disclosure relates to a system for controlling an air flow rate into a vehicle engine room. The system includes: an air intake port receiving an exterior air at a front portion of the vehicle and supplying the air into the engine room; air ducts formed at both sides of the air intake port and introduce the exterior air into a wheel side in order to improve aerodynamic characteristic; a control valve configured to selectively convey the air flowed in the air intake port into the air ducts; a radiator disposed between the air intake port and the engine room; and a control portion configured to control the control valve based on an operating state of vehicle. The air ducts are selectively communicated with the air intake port and disposed at upstream of the radiator.

公开(公告)号：US20160115855A1

公开(公告)日：2016-04-28

申请号：US14837371

申请日：2015-08-27

Applicant: TOYOTA JIDOSHA KABUSHIKI KAISHA

Inventor： Masahiro SATO

IPC: F01P3/22 ,  F01P11/04

CPC classification number: F01P3/2271 ,  F01P3/2207 ,  F01P3/2285 ,  F01P7/16 ,  F01P7/162 ,  F01P2003/2214 ,  F01P2003/2264 ,  F01P2025/04 ,  F01P2025/30 ,  F02G5/02 ,  F02G5/04 ,  F02G2260/00 ,  Y02T10/166

Abstract: A pressure relief valve 56 is opened from a time t1 to a time t2 for the purpose of reducing the pressure in the gas phase in a gas-liquid separator 16. A WP 44 is driven at a time t3 and a time t4. The time t3 and time t4 correspond to timings at which a difference ΔT between a boiling temperature T1 and an actual temperature T2 becomes equal to or greater than a predetermined temperature T3. Since liquid-phase coolant in a catch tank 42 can be fed to a WP 22 by driving the WP 44, the actual temperature T2 of the liquid-phase coolant immediately upstream of the WP 22 can be lowered. It is thus possible to prevent intense boiling of the liquid-phase coolant immediately upstream of the WP 22.

Abstract translation: 为了降低气液分离器16中的气相压力，从时间t1开始到时间t2的压力释放阀56.在时间t3和时刻t4驱动WP44。 时间t3和时间t4对应于沸点温度T1和实际温度T2之间的差Dgr; T等于或大于预定温度T3的定时。 由于捕捉箱42中的液相冷却剂可以通过驱动WP 44而被供给到WP22，因此可以降低紧靠WP22上游的液相冷却剂的实际温度T2。 因此，可以防止刚刚在WP22上游的液相冷却剂的剧烈沸腾。

公开(公告)号：US20110017154A1

公开(公告)日：2011-01-27

申请号：US12508674

申请日：2009-07-24

Applicant: Carl T. Vuk

Inventor： Carl T. Vuk

IPC: F01P7/14

CPC classification number: F01P9/00 ,  F01P2025/04

Abstract: A cooling system for a liquid cooled internal combustion engine having coolant passages and a heat exchanger selected to operate the engine cooling system in the region of nucleate boiling. A sensor detects the presence of nucleate boiling and a variable volume chamber has a flexible diaphragm urged on one side by controlled air pressure and responsive to the sensor maintain the coolant system pressure at a level maintaining optimum nucleate boiling to increase heat flux from the engine and reduce overall size of the system.

Abstract translation: 一种用于具有冷却剂通道的液体冷却内燃机的冷却系统和被选择用于在核沸腾区域内操作发动机冷却系统的热交换器。 传感器检测到核沸腾的存在，并且可变容积室具有通过受控的空气压力在一侧上被推动的柔性隔膜，并响应于传感器将冷却剂系统压力保持在保持最佳核沸腾的水平以增加来自发动机的热通量， 减少系统的总体尺寸。

公开(公告)号：US20100058848A1

公开(公告)日：2010-03-11

申请号：US12244031

申请日：2008-10-02

Applicant: Wajdi B. Hamama ,  Jon C. Miller ,  Igor Anilovich ,  John W. Siekkinen ,  Steven J. Shepherd ,  Robert S. Wickman ,  Roberto De Paula

Inventor： Wajdi B. Hamama ,  Jon C. Miller ,  Igor Anilovich ,  John W. Siekkinen ,  Steven J. Shepherd ,  Robert S. Wickman ,  Roberto De Paula

IPC: F01P11/16 ,  G01K13/00

CPC classification number: F01P11/16 ,  F01P2025/04 ,  F01P2025/06 ,  F01P2025/13 ,  F01P2025/30 ,  F01P2025/60 ,  F01P2025/66

Abstract: An engine coolant temperature estimation system comprises a coolant temperature estimation module and a coolant monitoring module. The coolant estimation module estimates an engine coolant temperature based on at least one of a mass air flow, a vehicle speed, and an ambient temperature. The coolant monitoring module selectively operates an engine based on the estimated engine coolant temperature.

Abstract translation: 发动机冷却剂温度估计系统包括冷却剂温度估计模块和冷却剂监测模块。 冷却剂估计模块基于质量空气流量，车辆速度和环境温度中的至少一个来估计发动机冷却剂温度。 冷却剂监控模块基于估计的发动机冷却剂温度选择性地操作发动机。

公开(公告)号：US20100031901A1

公开(公告)日：2010-02-11

申请号：US12522425

申请日：2008-02-08

Applicant: Erik Dahl ,  Katarina Jemt

Inventor： Erik Dahl ,  Katarina Jemt

IPC: F01P7/00

CPC classification number: F01P11/029 ,  F01P11/028 ,  F01P11/18 ,  F01P2025/04 ,  F01P2037/02

Abstract: An engine cooling system is provided with a cooling circuit including a coolant pump for supplying an engine with a coolant and for circulating the coolant in the cooling circuit, and at least one heat exchanger for cooling said coolant downstream of the engine, wherein an expansion tank is connected to the cooling circuit upstream of the coolant pump. The cooling system is pressurized by a pressure regulating arrangement arranged to pressurize coolant supplied to the cooling circuit from the expansion tank during at least one predetermined operating mode of the engine and the expansion tank is closed to the ambient atmosphere during all normal engine operation modes.

Abstract translation: 发动机冷却系统设置有冷却回路，该冷却回路包括用于向发动机供给冷却剂并使冷却剂在冷却回路中循环的冷却剂泵和用于冷却发动机下游的冷却剂的至少一个热交换器，其中膨胀罐 连接到冷却剂泵上游的冷却回路。 冷却系统由压力调节装置加压，该压力调节装置设置成在发动机的至少一个预定操作模式期间对从冷却回路供给的冷却剂加压，并且在所有正常的发动机运转模式期间，膨胀箱都关闭到环境大气。