Patents Examined by Mahmoud Gimie
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Patent number: 11280301Abstract: An intake device of an engine comprises an intercooler, an intake passage including a downstream-side intake passage, and an EGR passage recirculating exhaust gas to the downstream-side intake passage. An intake-air supply opening having an opening area smaller than an area of a downstream-side face of an intercooler core is provided at a downstream side wall of a chamber. The downstream-side intake passage includes an extension passage portion extending upwardly along the downstream side wall. The intake-air supply opening includes an upper edge portion which separates the intake air flowing from an inside wall face of the extension passage portion and forms flowing main streams of the intake air inside the extension passage portion. EGR introduction ports are arranged at positions capable of supplying the EGR gas toward the flowing main streams.Type: GrantFiled: November 9, 2020Date of Patent: March 22, 2022Assignee: MAZDA MOTOR CORPORATIONInventors: Yoshihiro Hamazume, Takashi Yoshikawa, Jiro Kato, Taketoshi Yamauchi, Hirofumi Shinohara, Kazuhiro Nakamura, Yoko Inami, Shouichi Aiga, Tomoaki Fujiyama, Kosuke Miyamoto, Takuya Yamada
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Patent number: 11280298Abstract: An evaporative fuel processing device includes a canister, a purge path connected to the canister and an intake path that is connected to an internal combustion engine and through which purge gas flows from the canister to the intake path, and a flow control valve provided in the purge path to control the flow rate of the purge gas, wherein: the device further includes a first pressure detection unit that detects a first pressure at a first position between the canister and the flow control vale, and a concentration estimation unit that estimates a purge concentration of the purge gas flowing in the purge path; and the concentration estimation unit determines an increase in the first pressure generated by closing the flow control valve based on the detection value from the first pressure detection unit, and estimates the purge concentration based on the determined increase in the first pressure.Type: GrantFiled: May 29, 2019Date of Patent: March 22, 2022Assignee: AISAN KOGYO KABUSHIKI KAISHAInventors: Makoto Nakagawa, Takahiro Seko
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Patent number: 11280306Abstract: A fuel injector includes an injector housing, a check control valve assembly within the injector housing, a direct-operated check, a valve biaser supported on the injector housing, and a dry-running protection valve trapped between the valve biaser and the injector housing. The dry-running protection valve limits expelling drained actuation fluid from the fuel injector to enable filling a low-pressure volume therein in advance of filling a low pressure drain line common to a plurality of fuel injectors in an internal combustion engine system.Type: GrantFiled: January 15, 2021Date of Patent: March 22, 2022Assignee: Caterpillar Inc.Inventors: Manjunath Bannur Nagaraja, Venkata R. Tatikonda, Benjamin R. Tower
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Patent number: 11274638Abstract: A fluid heating device includes a pressurizing chamber configured to store a working fluid and a heat accumulator disposed in the pressurizing chamber. The heat accumulator includes a heat accumulating member configured to release heat by receiving a pressure applied to the working fluid. The fluid heating device has improved actuation efficiency.Type: GrantFiled: June 21, 2019Date of Patent: March 15, 2022Assignee: PANASONIC INTELLECTUAL PROPERTY MANAGEMENT CO., LTD.Inventors: Yoshitaka Nakamura, Kentaro Shii, Kou Sugano, Tatsuya Nakamura, Yusuke Ogihara, Ryuichi Ozaki
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Patent number: 11274624Abstract: A vehicle includes a pump configured to discharge a fuel by reciprocating a plunger, a rail configured to store the fuel discharged from the pump, and a fuel injection valve configured to inject the fuel supplied from the rail. A controller for the vehicle includes a waveform obtaining unit and a phase shift obtaining unit. The waveform obtaining unit is configured to obtain a waveform of a fuel pressure in the rail as a function of time in a predetermined period. The phase shift obtaining unit is configured to obtain a phase shift based on the waveform obtained by the waveform obtaining unit. The phase shift is an offset between a timing the plunger reciprocated in the pump arrives at a first position and a timing a piston reciprocating in an internal combustion engine arrives at a second position.Type: GrantFiled: December 7, 2020Date of Patent: March 15, 2022Assignee: DENSO CORPORATIONInventors: Naoto Seki, Naoyuki Yamada, Mohamed Kuthbudeen Syed Mohamed
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Patent number: 11268485Abstract: A fuel pump for an internal combustion engine comprising a barrel having a longitudinal axis that spans between a proximal end and a distal end and a central bore therein. A plunger is disposed at least partially in the central bore and is configured to move along the longitudinal axis. An annular seal assembly is arranged around the circumference of the plunger wherein the annular seal assembly includes a seal retainer housing and a first seal and the seal retainer housing also retains the proximal end of the barrel thereon to form a second seal wherein the first and the second seals reduce the fuel to oil transfer rate and the oil to fuel transfer rate. The plunger and barrel are configured to be removed from and re-assembled with the annular seal assembly to enable service of these parts and the fuel pump.Type: GrantFiled: August 10, 2020Date of Patent: March 8, 2022Assignee: Cummins Inc.Inventors: Roberto Medina Munoz, Matthew B. State, Samuel David Griffith Magnuson, Thomas M. Yeager
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Patent number: 11268411Abstract: A method for adjusting a valve lash in an internal combustion engine includes receiving a first signal generated by a sensor secured to the internal combustion engine, the first signal being indicative of a closing of a valve, receiving a second signal indicative of at least one of an engine speed of the internal combustion engine or a position of a camshaft of the internal combustion engine, and automatically determining an adjusted amount of lash associated with the valve based on the received first signal and the received second signal. The method also includes comparing the adjusted amount of lash to at least one predetermined threshold, and providing, in response to determining that the adjusted amount of lash is greater than the at least one predetermined threshold, a valve lash re-adjustment notification.Type: GrantFiled: June 5, 2020Date of Patent: March 8, 2022Assignee: Caterpillar Inc.Inventors: Yifeng Lu, Yanchai Zhang, Zhaoxu Dong, Nathan S. Pauli, Xuefei Hu, Purna C. Nalla, Brian W. Young, James D. Siegle
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Patent number: 11268484Abstract: Disclosed is a valve needle for a needle valve of a slurry fuel injector valve, the valve needle comprising: a tip for abutting a needle valve seat of the needle valve; a sealing portion for location in a bore of the needle valve; and a fuel chamber portion between the tip and the sealing portion, wherein the fuel chamber portion is for location in a needle fuel chamber of the needle valve; wherein a surface of the sealing portion of the valve needle comprises at least one groove and wherein at least part of the or each groove extends in a direction that is non-perpendicular to an axial direction of the valve needle.Type: GrantFiled: September 12, 2019Date of Patent: March 8, 2022Assignee: A.P. Møller—Mærsk A/SInventor: Tim Reeve
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Patent number: 11268474Abstract: A method of bank to bank trimming for a locomotive engine during steady state operation comprises receiving a plurality of operating parameter signals, receiving a fuel quantity signal for each of a standard cylinder bank and a donor cylinder bank, providing a trim map, determining whether the engine is operating in a steady state condition based on the plurality of operating parameter signals, determining a target fuel injection duration for each of the standard cylinder bank and the donor cylinder bank if the engine is operating in a steady state condition, and adjusting an actual fuel injection duration to equal the target fuel injection duration for the standard cylinder bank and the donor cylinder bank.Type: GrantFiled: May 11, 2020Date of Patent: March 8, 2022Assignee: Progress Rail Locomotive Inc.Inventors: Reddy Pocha Siva Sankara, Gregory L. Armstrong, Raji Rexavier, Michael B. Goetzke
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Patent number: 11268466Abstract: Systems and methods are provided for controlling deceleration fuel shut off (DFSO) in response to an external object or location, such as a target vehicle. In one example, a method may include, while operating an engine in DFSO, determining a rate of change of a range to the target vehicle, and commanding an exit from the DFSO based on the range rate of change. By exiting the DFSO based on the range rate of change, torque lash experienced by a driver may be correspondingly reduced as compared to exiting the DFSO based upon, for example, one or more powertrain operating conditions.Type: GrantFiled: September 27, 2019Date of Patent: March 8, 2022Assignee: Ford Global Technologies, LLCInventors: Daniel A. Makled, Michael McQuillen, Matthew Affeldt, Gopichandra Surnilla
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Patent number: 11261815Abstract: A filter monitoring system and method are described. The filter monitoring system includes a remote telematics system, and a data link between the remote telematics system and an onboard telematics system. The remote telematics system is configured to receive, via the data link, an indication of a pressure drop across a filter cartridge of the filtration system from the onboard telematics system, determine a first value indicative of a remaining filter life of the filter cartridge of the filtration system, determine a second value indicative of a remaining filter life of the filter cartridge that is determined in a different manner than the first value, compare the first value to the second value to determine which value indicates a least amount of life remaining for the filter cartridge, and transmit an indication of the least amount of life remaining for the filter cartridge based on the comparison.Type: GrantFiled: August 13, 2020Date of Patent: March 1, 2022Assignee: CUMMINS FILTRATION IP, INC.Inventors: Bharadwaj R. Prabhala, Abhijeet Vaidya, Abhijit Shimpi, Amit Dhingra, Kyle J. Brewer
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Patent number: 11255305Abstract: A manifold configured to inhibit air recirculation in an engine fueling system, the manifold comprising: a housing including an internal chamber in communication with a high pressure pump (“HPP”) port configured to receive drain fuel from a HPP; a drain port configured to return fuel to a fuel tank; an air bleed port configured to receive air bled from the fueling system; and a check valve positioned within the internal chamber, the check valve configured to inhibit air from flowing from the air bleed port to the HPP port, thereby inhibiting air recirculation into the engine fueling system.Type: GrantFiled: October 28, 2020Date of Patent: February 22, 2022Assignee: CUMMINS INC.Inventors: Iannelli Olivares, Bryce Short
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Patent number: 11255277Abstract: A system for exchanging of different fuels that can be used for operation of an engine. The system includes a fuel exchange unit, a control and an exchange return conduit. The fuel exchange unit is configured to deliver a first fuel at pressure into the injections system given a switched-off engine, in order to replace a second fuel, which is located in the injection system, with the first fuel. A fuel delivery system includes a media converter which includes a deflectable element. The media converter is driven by a drive unit via the fluid by way of the fluid being able to be led at a varying pressure to the media transformer via a first feed conduit, and is configured to deliver the fuel via a pumping effect.Type: GrantFiled: September 3, 2020Date of Patent: February 22, 2022Assignee: BEFINAL GMBHInventor: Holger Becker
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Patent number: 11255275Abstract: An intake device is provided with a throttle body having a valve that can rotate relative to a body, and an intake pipe provided downstream of the throttle body and connected to an internal combustion engine, an intake passage of the intake pipe being provided with a flow adjustment part that guides the air supplied from the throttle body in the direction in which the intake passage extends, and the flow adjustment part being provided to an upstream end that is on the throttle body-side in the intake passage and also being provided so as to connect to an inner peripheral surface of the intake passage at a position of non-contact when the valve is fully open.Type: GrantFiled: June 20, 2019Date of Patent: February 22, 2022Assignee: HITACHI ASTEMO, LTD.Inventors: Kazuki Arai, Masao Yamazaki
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Patent number: 11255240Abstract: Methods and systems are provided for reducing emissions during an engine cold start. In one example, a method may include, during emission control device heating, initiating combustion in a cylinder via a spark plug directly coupled to the cylinder and providing secondary air via a turbulent jet ignition system. In this way, an amount of hydrocarbons in feedgas provided to the emission control device prior to the emission control device reaching its light-off temperature may be reduced.Type: GrantFiled: January 5, 2021Date of Patent: February 22, 2022Assignee: Ford Global Technologies, LLCInventors: Chris Glugla, Rani Kiwan
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Patent number: 11255278Abstract: A method for analyzing a fluid that flows from a chamber, in particular a combustion chamber, of an internal combustion engine into a fluid guide. The internal combustion engine includes at least one element, in particular an injector, for the supply of fuel. The analysis takes place with the aid of a sensor, in particular a lambda sensor, on which the fluid in the fluid guide acts. The analysis takes place during cranking of the internal combustion engine, and the fluid acting on the sensor is not influenced by fuel that is supplied in a controlled manner.Type: GrantFiled: March 15, 2021Date of Patent: February 22, 2022Assignee: Robert Bosch GmbHInventors: Achim Hirchenhein, Guido Porten, Jochen Hofstaetter, Lorenz Oberlin, Stefan Gottlieb
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Patent number: 11246265Abstract: An agricultural system including an agricultural baler and a control unit. The baler includes a driveline including at least one heat generating component; a rotatable flywheel; a rotary input shaft connectable by the driveline to the rotatable flywheel; and at least one pump for supplying cooling fluid at a cooling fluid pressure to the at least one heat generating component. The control unit is configured to: receive baler-data indicative of one or more operating conditions of the agricultural baler; receive cooling-pressure-data indicative of a flow of the cooling fluid supplied by the at least one pump; set a threshold-condition based on the baler-data; and provide a control-signal to the agricultural baler based on a comparison between the cooling-pressure-data and the threshold-condition.Type: GrantFiled: November 9, 2020Date of Patent: February 15, 2022Assignee: CNH Industrial America LLCInventors: Xavier G J M Bonte, Kenneth De Leener
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Patent number: 11248550Abstract: An internal combustion engine control device (1) includes an injector-temperature calculation unit (21a), an engine-temperature calculation unit (21b), an operating-state control unit (21c), a cold/warmed-up state determination unit (21d), an ambient-temperature calculation unit (21e), and a correction unit (21f). The correction unit (21f) corrects an engine temperature calculated based on an injector temperature, when it is determined that an engine is in a cold state and a difference between the injector temperature and an ambient temperature is equal to or larger than a first predetermined value.Type: GrantFiled: March 13, 2018Date of Patent: February 15, 2022Assignee: Honda Motor Co., Ltd.Inventors: Ryo Sasaki, Takahiro Kashima
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Patent number: 11242815Abstract: The error diagnosis device has: an input unit that receives detected values for pressure inside the common rail; a calculation unit that, if the detected values are less than a target common rail pressure, calculates the pressure differences and the fuel pump discharge amounts; and a determination unit that determines whether or not a set time has lapsed in a state in which the pressure differences are at least a first threshold value and less than a second threshold value and the discharge amounts are at least a third threshold value and less than a fourth threshold value. The determination unit determines that an error has occurred in the high-pressure pump if the set time has lapsed and determines that an error has occurred in the flowrate adjustment valve if the set time has not lapsed.Type: GrantFiled: March 20, 2019Date of Patent: February 8, 2022Assignee: Isuzu Motors LimitedInventors: Yuusuke Kobayashi, Katsushi Shidomi, Kunio Noda, Daiki Ishii, Fumihiko Okazaki
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Patent number: 11236717Abstract: The subject matter of this specification can be embodied in, among other things, an apparatus that includes a high-pressure pump having a pump element, a regulating device positioned upstream of the high-pressure pump, a fuel channel defined between an inflow side of the regulating device and the pump element, and a safety device, actuatable to reduce a through-flowable cross section of the fuel channel.Type: GrantFiled: March 6, 2019Date of Patent: February 1, 2022Assignee: Woodward L'Orange GmbHInventors: Frank Grassier, Rainer Zass
