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公开(公告)号：US12104564B2
公开(公告)日：2024-10-01
申请号：US18278330
申请日：2022-03-11
发明人： Robert Graumüller
CPC分类号： F02M63/0001 , F02M59/102 , F02M59/36
摘要： A lubricated high pressure fuel pump assembly is provided, comprising a fuel pump, a sealed enclosure and a pump lubrication circuit. The fuel pump includes a pump drive shaft via which the fuel pump is configured to be mechanically driven. The sealed enclosure is configured to surround a first portion of the pump drive shaft, wherein the first portion is exterior to the fuel pump. The pump lubrication circuit comprises a lubricant reservoir and a lubricant pump configured to pump lubricant from the lubricant reservoir to the pump drive shaft. The sealed enclosure is configured to prevent fluid leakage from the fuel pump via the first portion of the pump drive shaft and the lubricant reservoir is configured to collect the lubricant from the pump drive shaft, such that the lubricant is retained within the lubricated high pressure fuel pump assembly.
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公开(公告)号：US12060860B2
公开(公告)日：2024-08-13
申请号：US16973393
申请日：2019-06-04
IPC分类号： F02M63/00
CPC分类号： F02M63/0077
摘要： The present invention relates to a seat plate for an injector, comprising: a planar main body having a first flat side and a second flat side; a passage, which extends through the planar main body from the first flat side to the second flat side; and an indentation region in the first flat side, which indentation region surrounds an opening of the passage. The seat plate is characterised in that a plurality of webs are formed in the first flat side through the indentation region, the ratio of length to width of each web lying in the range of 2.5-3.5:1, preferably in the range from 2.7-3.3:1, more preferably in the range from 2.9-3.1:1.
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3.发明授权公开(公告)号：US11939932B2
公开(公告)日：2024-03-26
申请号：US18011463
申请日：2021-07-01
CPC分类号： F02D41/2096 , F02D41/2467 , F02M47/027 , F02M63/0026 , F02M65/001 , F02M65/005 , F02D2041/2051
摘要： Disclosed is a method for determining a static flow rate of a piezo-electric injector of an injection system. The piezo-electric injector includes a needle and a piezo-electric actuator designed to control a valve of the injector. The injection system includes an electric generator designed to send electric current pulses to the piezo-electric actuator of the injector, and a voltage sensor designed to measure voltage values at the terminals of the piezo-electric actuator. The method includes the following steps: sending during a phase of closure of the needle of an electric current pulse such that the piezo-electric actuator is positioned in contact with the valve, without giving rise to the opening thereof; measurement of a plurality of voltage values of the piezo-electric actuator; and determining a static flow rate of the piezo-electric injector on the basis of a plurality of voltage values measured of the piezo-electric actuator.
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公开(公告)号：US11746734B2
公开(公告)日：2023-09-05
申请号：US16110667
申请日：2018-08-23
发明人： Rolando Lopez
CPC分类号： F02M63/0021 , F02M51/061 , F02M63/0071 , F16K3/24
摘要： A shuttle valve for a control valve coupled to an electronic fuel injector is disclosed. The shuttle valve may include a shuttle valve first end including an armature attachment portion operably coupled to an armature of the control valve and a shuttle valve second end opposite the shuttle valve first end defining a sealing portion of the control valve including an annular sealing surface. A valve guide portion may extend axially along a portion of the shuttle valve between the first and second ends. Furthermore, an engagement surface portion may be defined along the valve guide portion that is slidably engaged with a valve bore. Moreover, the shuttle valve may include a non-engagement surface portion defined along the valve guide portion, wherein the non-engagement surface is a non-continuous surface around a circumference of the valve guide portion and wherein the non-engagement surface is interspersed between portions of the engagement surface.
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公开(公告)号：US11726124B2
公开(公告)日：2023-08-15
申请号：US16727829
申请日：2019-12-26
申请人： TUSIMPLE, INC.
发明人： Xiaoling Han , Yu-Ju Hsu
CPC分类号： G01R31/007 , B60T17/221 , F01N11/00 , F02M63/0015 , G01K15/007 , G01N33/007 , G01P21/02
摘要： Devices, systems and methods for using system-level malfunction indicators to monitor the operation and resiliency of the autonomous driving system components are described. One example of a method for diagnosing a fault in a component of an autonomous vehicle includes receiving, from an electrical sub-component of the component, an electrical signal, receiving, from an electronic sub-component of the component, a message, and determining, based on the electrical signal and the message, an operational status of the component.
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公开(公告)号：US11608805B2
公开(公告)日：2023-03-21
申请号：US16632527
申请日：2018-07-20
摘要： Device for controlling an injector, including a passage space which can be closed off on one of its two sides by an armature element in order to thereby optionally separate a fluid high-pressure region from a fluid low-pressure region of the injector, a control space for applying a variable pressure to an injector component, preferably an injector needle, a valve which is arranged between another of the two sides of the passage space and the control space, a first connection which connects the high-pressure region of the injector to the passage space, and a second connection which connects the passage space to the control space, wherein the valve is configured to establish a direct connection between the high-pressure region and the control space if the pressure level in the passage space is equal to or higher than a predetermined value.
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公开(公告)号：US11536235B2
公开(公告)日：2022-12-27
申请号：US17355895
申请日：2021-06-23
申请人： Walbro LLC
发明人： Gary J. Burns , Andreas D. M. Dixon , Eric G. Zbytowski , Albert L. Sayers , Justin T. Dolane , David L. Speirs , William E. Galka , Duried F. Rabban , Bradley J. Roche
摘要： A throttle body assembly for a combustion engine includes a throttle body having a pressure chamber including a supply of liquid fuel, and a throttle bore with an inlet through which air is received. A throttle valve is carried by the throttle body with a valve head movable relative to the throttle bore. A metering valve is coupled to the throttle body, and has a valve element that is movable between open and closed positions. A boost venturi is located in the throttle bore and has an inner passage that is open at both ends to the throttle bore. The boost venturi has an opening through which fuel flows into the inner passage when the valve element is in the open position, wherein fuel flows from the pressure chamber to the metering valve under the force of gravity or under a pressure of less than 6 psi.
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公开(公告)号：US11466653B2
公开(公告)日：2022-10-11
申请号：US17104784
申请日：2020-11-25
申请人： DENSO CORPORATION
发明人： Keisuke Yanoto
摘要： A control device controls a drive current that flows through a drive coil of a fuel injection valve that is electromagnetically driven. A control device includes a determination unit configured to determine whether a supply fuel pressure, which is a pressure of fuel supplied to the fuel injection valve, is higher than a determination pressure at which the fuel pressure is determined abnormally high; a first control unit configured to control the drive current in a first mode when the determination unit determines that the supply fuel pressure is not higher than the determination pressure; and a second control unit configured to control the drive current in a second mode that facilitates maintaining of the fuel injection valve in an open state more than in the first mode when the determination unit determines that the supply fuel pressure is higher than the determination pressure.
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公开(公告)号：US11448149B2
公开(公告)日：2022-09-20
申请号：US16898975
申请日：2020-06-11
发明人： Michael Wirkowski , Tobias Ritsch , Claus Stephani
摘要： Disclosed is a method and a device for predicting the failure time of the pressure limiting valve of a high-pressure fuel pump of a motor vehicle. The method includes measuring a characteristic parameter of the pressure limiting valve each time the motor vehicle has been switched off, determining and storing a variable determined by using the measured characteristic parameter, determining the time profile of the variable determined from the characteristic parameter, predicting the future profile of the variable determined from the characteristic parameter, and comparing the predicted future profile of the variable determined from the characteristic parameter with a predetermined wear limiting value. The comparison is to predict the time at which the predicted future profile of the variable determined from the characteristic parameter reaches the predetermined wear limiting value.
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公开(公告)号：US11371472B2
公开(公告)日：2022-06-28
申请号：US16293750
申请日：2019-03-06
申请人： DENSO CORPORATION
发明人： Yuji Saito
摘要： A first member has a plated layer. A second member is pressed against the plated layer and causes a tensile stress in the first member. A breakage probability is a probability of breakage of the plated layer caused by the tensile stress. A characteristic line represents a relationship between an elastic modulus of the plated layer and the breakage probability. A characteristic slope of the characteristic line is a ratio of an increase in the breakage probability to a decrease in the elastic modulus. A characteristic change point appears on the characteristic line at which the elastic slope increases to exceed a predetermined slope as the elastic modulus gradually decreases. A characteristic change elastic modulus is the elastic modulus at the characteristic change point. The plated layer contains at least a chromium component and has the elastic modulus larger than the characteristic change elastic modulus.
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