公开(公告)号：US20240209807A1

公开(公告)日：2024-06-27

申请号：US18543640

申请日：2023-12-18

Applicant: VOLVO TRUCK CORPORATION

Inventor： Oscar GARNEMARK ,  Ulf ARONSSON ,  Fredrik RAHM

IPC: F02D41/00 ,  F02D41/18

CPC classification number: F02D41/0007 ,  F02D41/18 ,  F05D2220/40 ,  F05D2270/101

Abstract: An engine system for a vehicle is provided. The engine system includes a first and a second turbine arrangement arranged in parallel with each other. A rotational speed of a first turbo arrangement is controlled in response to a distance between a first compressor map position and a surge line of a compressor map being below a predetermined threshold distance.

公开(公告)号：US20230182710A1

公开(公告)日：2023-06-15

申请号：US18072846

申请日：2022-12-01

Applicant: Volvo Truck Corporation

Inventor： Mats RYDSTRÖM ,  Fredrik RAHM ,  Tove AUDHAV ,  Martin WILHELMSSON

IPC: B60T17/00 ,  B60T13/26 ,  B60T8/17 ,  F16D65/78 ,  B60T17/22 ,  B60T5/00 ,  B60T13/68 ,  B60T17/02 ,  B60T8/32

CPC classification number: B60T17/002 ,  B60T5/00 ,  B60T8/1701 ,  B60T8/3215 ,  B60T13/26 ,  B60T13/683 ,  B60T17/02 ,  B60T17/22 ,  F16D65/78 ,  B60T2250/00 ,  B60T2270/88 ,  F16D2065/782 ,  F16D2065/783 ,  F16D2066/001

Abstract: A system for use in connection with a wheel torque generating component in a heavy-duty vehicle. The system comprises a fluid conduit, a compressor configured to provide a pressurized air flow through the fluid conduit, a mass flow adding arrangement configured to add a fluid to the pressurized air flow in the fluid conduit, thereby increasing the mass flow of the pressurized air flow, and a flow directing device arranged downstream of the mass flow adding arrangement and configured to direct the pressurized air flow, including the added fluid, from the fluid conduit to the wheel torque generating component so as to control the temperature of the wheel torque generating component. The invention also relates to a method for use in connection with a wheel torque generating component in a heavy-duty vehicle.

公开(公告)号：US20230182697A1

公开(公告)日：2023-06-15

申请号：US18072839

申请日：2022-12-01

Applicant: Volvo Truck Corporation

Inventor： Tove AUDHAV ,  Mats FAGERGREN ,  Fredrik RAHM ,  Arne ANDERSSON

IPC: B60T8/171 ,  B60T13/26 ,  B60T8/17 ,  B60T17/22 ,  B60T8/32 ,  B60T13/68 ,  B60T5/00 ,  F16D65/78

CPC classification number: B60T8/171 ,  B60T5/00 ,  B60T8/1701 ,  B60T8/3215 ,  B60T13/26 ,  B60T13/683 ,  B60T17/22 ,  F16D65/78 ,  B60T2250/00 ,  B60T2270/60 ,  F16D2066/001

Abstract: A system for use in connection with a wheel torque generating component in a heavy-duty vehicle, comprising a fluid conduit, a flow creating device configured to provide a pressurized air flow through the fluid conduit, a flow directing device enabling the pressurized air flow to be directed from the fluid conduit to the wheel torque generating component so as to control the temperature of the wheel torque generating component, and a control unit configured to compare a determined first temperature of the pressurized air flow with a determined second temperature of the wheel torque generating component, wherein the control unit is configured to, based on the comparison of the first temperature and the second temperature, selectively control the flow directing device to direct the pressurized air flow to the wheel torque generating component. The invention also relates to a method.

公开(公告)号：US20210310448A1

公开(公告)日：2021-10-07

申请号：US17269911

申请日：2018-08-23

Applicant: VOLVO TRUCK CORPORATION

Inventor： Fredrik RAHM ,  Johan CARLÉN ANDERSSON

IPC: F02M26/50 ,  F02M26/33 ,  F02M26/34 ,  F02M26/36 ,  F02M26/49

Abstract: The invention relates to a method for operating an internal combustion engine system (2), wherein the internal combustion engine system (2) is provided with an air intake duct (3), an exhaust gas duct (4) and an exhaust gas recirculation (EGR) system (5), wherein the EGR system (5) comprises an EGR conduit (6) that fluidly connects the exhaust duct (4) and the intake duct (3), and wherein a gas feeding device (7) configured to feed exhaust gas from the exhaust duct (4) to the intake duct (3) is arranged in the EGR conduit (6). The method is characterized in that it comprises the step of: providing a flushing liquid in the EGR conduit (6) upstream of the EGR gas feeding device (7) so as to flush and clean the EGR gas feeding device (7). The invention also relates to an internal combustion engine system (2) configured for being operated by such a method and to a vehicle (1) provided with such an engine system (2). The invention further relates to means for controlling the above method.

公开(公告)号：US20210277849A1

公开(公告)日：2021-09-09

申请号：US17256511

申请日：2019-06-28

Applicant: VOLVO TRUCK CORPORATION

Inventor： Fredrik RAHM ,  Johan CARLÉN ANDERSSON ,  Ulf ARONSSON

IPC: F02M26/16 ,  F02D13/02 ,  F02D41/00 ,  F02D41/14 ,  F02M26/05 ,  F02M26/34

Abstract: The invention relates to an internal combustion engine comprising a crankshaft, one or more cylinders including a cylinder head, a piston, a combustion chamber, one or more intake valves, one or more exhaust valves, an intake system configured for feeding intake air to the engine, an exhaust system configured for conveying exhaust gas away from the engine, a pressure charging system connected to the intake system and an exhaust gas recirculation (EGR) system arranged to feed branched off exhaust gas from the exhaust system to the intake system via an EGR conduit wherein: * the internal combustion engine includes a valve actuation device configured to allow for late or early closing of the intake valves in accordance with late or early Miller-type valve timing, and wherein * the EGR system includes a gas feeding device configured to feed exhaust gas through the EGR conduit in modes of operation wherein the pressure in the intake system exceeds the pressure in the exhaust system, * wherein the gas feeding device is a displacement pump and wherein the gas feeding device is arranged so that exhaust gas recirculating in the EGR system during operation of the engine passes the gas feeding device before being mixed with intake air in the intake system. Additionally, a method of improving efficiency of an internal combustion engine is described.

公开(公告)号：US20180299057A1

公开(公告)日：2018-10-18

申请号：US15566274

申请日：2016-05-03

Applicant: VOLVO TRUCK CORPORATION

Inventor： Peter ANDERSSON ,  Fredrik RAHM

IPC: F16L55/052 ,  F01N13/18 ,  F01D9/06 ,  F02B33/44 ,  F02B29/04 ,  F02M35/104 ,  F02B41/10 ,  F02B37/02 ,  F16L39/00 ,  F16L23/00

Abstract: A conduit connection assembly including a first conduit part and a second conduit part, adapted to be assembled to form a conduit connection delimiting a first fluid conducting volume, wherein the conduit connection assembly presents a second fluid conducting volume, the first and second fluid conducting volumes being arranged to communicate with each other via a pressure change inducing device so as to form a common fluid guide, whereby during use of the conduit connection assembly the pressure in the first conducting volume is higher than the pressure in the second conducting volume, in that a cavity is formed between the first and second conduit parts at a distance from the first conducting volume, and a draining connection is adapted to provide a communication between the cavity and the second fluid conducting volume.

公开(公告)号：US20250114734A1

公开(公告)日：2025-04-10

申请号：US18730553

申请日：2023-01-25

Applicant: VOLVO TRUCK CORPORATION

Inventor： Carl LÖWSTEDT ,  Fredrik RAHM

IPC: B01D46/24 ,  B01D46/00 ,  H01M8/0662

Abstract: An air filter system has an elongated filter housing, a tube shaped air filter element, and a lid connectable to a second axial housing end of the filter housing upon removal of the air filter element from the filter housing.

公开(公告)号：US20250067233A1

公开(公告)日：2025-02-27

申请号：US18720361

申请日：2021-12-16

Applicant: VOLVO TRUCK CORPORATION

Inventor： Fredrik RAHM

IPC: F02M26/08 ,  F02B37/04 ,  F02B43/10 ,  F02M26/34

Abstract: A combustion engine arrangement comprising a combustion engine has an intake manifold, and an exhaust manifold the combustion engine arrangement comprising a turbocharged air intake system fluidly connected to said intake manifold. The turbocharged air intake system has an air pump; and an exhaust gas recirculation (EGR) system fluidly connecting said exhaust manifold to said intake manifold, the EGR system comprising an EGR pump. The EGR pump and the air pump are arranged to be independently controllable so as to enable independent control the exhaust gas inflow and the air inflow to the intake manifold of the combustion engine.

公开(公告)号：US20240222661A1

公开(公告)日：2024-07-04

申请号：US18560755

申请日：2021-05-20

Applicant: VOLVO TRUCK CORPORATION

Inventor： Tove AUDHAV ,  Fredrik RAHM

IPC: H01M8/04014 ,  H01M8/04111 ,  H01M8/0432 ,  H01M8/04746

CPC classification number: H01M8/04014 ,  H01M8/04111 ,  H01M8/04335 ,  H01M8/04761 ,  H01M2250/20

Abstract: A fuel cell system is for a vehicle at least partially propelled by an electric traction motor. The fuel cell system includes a fuel cell comprising an anode side and a cathode side, an expander connected to a fuel cell motor, an inlet conduit connected to an inlet end of the cathode side for supply of air to the cathode side, an outlet conduit connected between an outlet end of the cathode side and an inlet side of the expander for supply of an exhaust flow from the cathode side to the expander, and an exhaust conduit connected to an exhaust side of the expander, and a heat exchanger connected at the inlet conduit and at the exhaust conduit for transfer of heat between the inlet conduit and the exhaust conduit.

公开(公告)号：US20230399964A1

公开(公告)日：2023-12-14

申请号：US18330636

申请日：2023-06-07

Applicant: VOLVO TRUCK CORPORATION

Inventor： Lennart ANDERSSON ,  Fredrik RAHM

IPC: F01N3/00 ,  F01N3/021 ,  F01N3/02 ,  F01P3/20 ,  F02B43/10 ,  F01N3/28 ,  F02M25/03 ,  F01P5/10

CPC classification number: F01N3/005 ,  F01N3/021 ,  F01N3/0205 ,  F01P3/20 ,  F02B43/10 ,  F01N3/2892 ,  F02M25/03 ,  F01P5/10

Abstract: An internal combustion engine, ICE, system for a vehicle includes an ICE operable on a main fuel component containing hydrogen gas or hydrogen liquid, said ICE having at least one combustion chamber; an exhaust gas aftertreatment system, EATS, arranged in an exhaust gas circuit downstream the ICE, said EATS having at least one NOx reduction device and/or a particulate filter, and an exhaust gas water recovery, EWR, system arranged at least partly downstream the NOx reduction device in the exhaust gas circuit, said EWR system having at least a primary exhaust cooler and a water separator; a waste heat recovery, WHR, system for providing a rankine cycle, said WHR system being arranged to transport a working fluid, WF, through the primary exhaust cooler of the EWR system; a low temperature coolant circuit in fluid communication an exhaust condenser of the EWR system; and a water management system arranged in fluid communication with the water separator of the EWR system, said water management system being arranged to collect water from the EWR system and transport water in a liquid fluid circuit to the at least one combustion chamber.