-
公开(公告)号：US12092062B2
公开(公告)日：2024-09-17
申请号：US18499629
申请日：2023-11-01
Applicant: Cummins Inc.
Inventor： Donald J. Benson
CPC classification number: F02M65/003 , F02D41/22 , G07C5/008 , G07C5/0808 , F02D2041/224 , F02D2200/0602 , F02M2200/247
Abstract: Provided are methods and fuel injection systems implemented with a plurality of injectors coupled with a common rail, the common rail coupled with a pressure sensor, and the pressure sensor coupled with a processor. The method includes: identifying, by the processor, one of the injectors to calculate a pressure change rate of the common rail associated therewith; receiving, by the processor, pressure measurements of the common rail from the pressure sensor before and during an injection event within a measurement window; using, by the processor, a pre-injection mean pressure of the common rail to determine a rail pressure drop range that is specific to the identified injector; and calculating, by the processor, the pressure change rate associated with the identified injector based on the pressure measurements of the common rail taken during the rail pressure drop range.
-
42.发明公开公开(公告)号：US20240060466A1
公开(公告)日：2024-02-22
申请号：US18499629
申请日：2023-11-01
Applicant: Cummins Inc.
Inventor： Donald J. Benson
CPC classification number: F02M65/003 , F02D41/22 , G07C5/008 , G07C5/0808 , F02D2041/224 , F02M2200/247 , F02D2200/0602
Abstract: Provided are methods and fuel injection systems implemented with a plurality of injectors coupled with a common rail, the common rail coupled with a pressure sensor, and the pressure sensor coupled with a processor. The method includes: identifying, by the processor, one of the injectors to calculate a pressure change rate of the common rail associated therewith; receiving, by the processor, pressure measurements of the common rail from the pressure sensor before and during an injection event within a measurement window; using, by the processor, a pre-injection mean pressure of the common rail to determine a rail pressure drop range that is specific to the identified injector; and calculating, by the processor, the pressure change rate associated with the identified injector based on the pressure measurements of the common rail taken during the rail pressure drop range.
-
公开(公告)号：US20240060464A1
公开(公告)日：2024-02-22
申请号：US18497382
申请日：2023-10-30
Applicant: Cummins Inc.
Inventor： Eric A. Benham , Karthik Sethuraman , Donald J. Benson , Michael Andrew Lucas , Richard E. Duncan
CPC classification number: F02M59/366 , F02M63/0035 , F02M63/0017
Abstract: At least some embodiments of the present disclosure are directed to pump assemblies. In some embodiments, the pump is a high-pressure pump for an engine. The pump includes: an inlet valve configured to receive fuel; an armature coupled to the inlet valve and configured to actuate the inlet valve; and a pump barrel comprising a barrel guide, the barrel guide comprising a protrusion and configured to guide a motion of the armature.
-
公开(公告)号：US20230167794A1
公开(公告)日：2023-06-01
申请号：US18160556
申请日：2023-01-27
Applicant: Cummins Inc.
Inventor： Samuel David Griffith Magnuson , Donald J. Benson , Matthew B. State , Eric A. Benham , Aleksandr E. Lesin , Karthik Sethuraman
CPC classification number: F02M59/102 , F02M59/06
Abstract: The present disclosure provides a high-pressure fuel pump including a barrel unit, a plunger, and a camshaft assembly having an eccentric cam lobe including a surface of the lobe. A follower is provided between the plunger and the surface of the lobe of the camshaft assembly to facilitate translation between the rotational movement of the camshaft assembly to axial movement of the plunger. The follower includes arcuate surfaces configured to mate with corresponding arcuate surfaces of the lobe of the cam shaft assembly and the plunger, respectively.
-
公开(公告)号：US11480128B2
公开(公告)日：2022-10-25
申请号：US17169725
申请日：2021-02-08
Applicant: Cummins Inc.
Inventor： Donald J. Benson
Abstract: A method of controlling an engine system includes controlling a fuel injector to perform a zero-fueling injector operation during operation of the engine, the zero-fueling injector operation including a non-zero injector on-time resulting in zero fueling by the injector, determining an injection system pressure change associated with the zero-fueling injector operation, modifying at least one fuel injection control parameter in response to the injection system pressure change, and using the modified fuel injection control parameter to control injection of fuel by the fuel injector during operation of the engine.
-
Patent Agency Ranking
公开(公告)号：US10077748B2
公开(公告)日：2018-09-18
申请号：US14580820
申请日：2014-12-23
Applicant: Cummins Inc.
Inventor： Donald J. Benson , Ahmad M. Sabri , Hanumantharao Konakanchi
CPC classification number: F02M55/002 , F02M47/027 , F02M63/0012 , F02M63/0225
Abstract: A fuel injector, comprising an injector body having a longitudinal axis, an injector cavity, an injector orifice at a distal end of the injector cavity, and an inlet conduit configured to supply fuel into the injector cavity, a nozzle valve in the injector cavity, a drain circuit configured to drain fuel from the injector cavity to a low pressure drain, a pilot valve in flow communication with the drain circuit, a chamber housing having an inlet passage to receive fuel from the injector cavity, a return port in flow communication with the pilot valve to drain fuel to the drain circuit, and an abutting surface surrounding the return port, and a control body slidably disposed in the chamber housing, the control body having, a distal end, a proximal end, and a longitudinal axis parallel with the injector body longitudinal axis, a first depression at the distal end defining a first control chamber in which one end of the nozzle valve is guided, a second depression at the proximal end defining a second control chamber in flow communication with the return port, and an annular seal disposed radially of the second depression having a first diameter at an inner surface and a second diameter at an outer surface, wherein the first diameter is smaller than the second diameter.
-
公开(公告)号：US10048228B2
公开(公告)日：2018-08-14
申请号：US15288930
申请日：2016-10-07
Applicant: CUMMINS INC.
Inventor： Donald J. Benson , David M. Carey
IPC: G01N29/036 , G01N33/22
Abstract: Diagnostic systems including a pressure sensor, a determiner in communication with the pressure sensor, wherein the determiner is structured to estimate a sonic speed of a fuel based on identification of a fundamental oscillation frequency are disclosed. Also disclosed are diagnostic methods comprising receiving, by a pressure interpreter, a pressure signal, determining, by a determiner in communication with the pressure interpreter, a fundamental frequency of oscillation of the pressure signal, and determining, by the determiner, a sonic speed of a fuel based on the fundamental frequency of oscillation.
-
公开(公告)号：US09822748B2
公开(公告)日：2017-11-21
申请号：US14292860
申请日：2014-05-31
Applicant: CUMMINS INC.
Inventor： Marian Trocki , Donald J. Benson , Tamas Rauznitz , Vijaygandeeban Subbaihaannadurai , Deepak Sahini
CPC classification number: F02M61/042 , F02M45/12 , F02M61/12 , F02M63/0056 , F02M2200/28 , F02M2200/306
Abstract: An injector has an injector body including an injector cavity defining an inner wall and a longitudinal axis, an injector orifice and a plunger slidably disposed within the injector cavity. The plunger has an outer portion and an inner portion at different locations longitudinally along the plunger. The inner portion has a plurality of surface portions including a guiding portion configured to substantially mate with the inner wall of the injector cavity, guide the plunger to slidably move in a direction along the longitudinal axis and substantially prevent the plunger from laterally translating within the injector cavity. The plurality of surface portions also includes a restriction portion configured to form a restrictive cavity between an exterior surface of the inner portion and the inner wall of the injector cavity axially along a length of the inner portion.
-
49.发明授权System and method for estimating high-pressure fuel leakage in a common rail fuel system 有权用于估计共轨燃油系统中的高压燃油泄漏的系统和方法公开(公告)号：US09470167B2
公开(公告)日：2016-10-18
申请号：US15004637
申请日：2016-01-22
Applicant: CUMMINS INC.
Inventor： David M. Carey , Donald J. Benson , Sanjay Manglam , Paul V. Moonjelly
CPC classification number: F02D41/22 , F02D41/3845 , F02D2041/225 , F02D2041/286 , F02D2200/0602 , F02D2200/0606 , F02M47/02 , F02M55/025 , F02M65/006
Abstract: A system and method for measuring fuel pressure decreases in a fuel accumulator of an internal combustion engine is provided. The system includes the ability to stop a fuel flow to a fuel accumulator of the engine. Pressure signals are transmitted to a control system of the engine until the fuel pressure in the fuel accumulator drops by a predetermined amount, at which time fuel flow is re-enabled. The pressure signals are then analyzed to determine the amount or quantity of fuel delivered by each fuel injector. The system and method maintain engine and emissions performance by limiting the amount of fuel pressure decrease in the fuel accumulator.
Abstract translation: 提供了一种用于在内燃机的燃料蓄积器中测量燃料压力的系统和方法。 该系统包括停止向发动机的燃料蓄积器的燃料流动的能力。 压力信号传递到发动机的控制系统，直到燃料蓄积器中的燃料压力下降预定量，此时燃料流被重新启用。 然后分析压力信号以确定由每个燃料喷射器输送的燃料的量或数量。 该系统和方法通过限制燃料蓄压器中的燃料压力降低的量来维持发动机和排放性能。
-
50.发明申请公开(公告)号：US20160138545A1
公开(公告)日：2016-05-19
申请号：US15004637
申请日：2016-01-22
Applicant: CUMMINS INC.
Inventor： David M. Carey , Donald J. Benson , Sanjay Manglam , Paul V. Moonjelly
CPC classification number: F02D41/22 , F02D41/3845 , F02D2041/225 , F02D2041/286 , F02D2200/0602 , F02D2200/0606 , F02M47/02 , F02M55/025 , F02M65/006
Abstract: A system and method for measuring fuel pressure decreases in a fuel accumulator of an internal combustion engine is provided. The system includes the ability to stop a fuel flow to a fuel accumulator of the engine. Pressure signals are transmitted to a control system of the engine until the fuel pressure in the fuel accumulator drops by a predetermined amount, at which time fuel flow is re-enabled. The pressure signals are then analyzed to determine the amount or quantity of fuel delivered by each fuel injector. The system and method maintain engine and emissions performance by limiting the amount of fuel pressure decrease in the fuel accumulator.
-
-
-
-
-
-
-
-
-
Search Results
50
records
(took 0.023 seconds)
