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公开(公告)号：US10030604B2
公开(公告)日：2018-07-24
申请号：US15223993
申请日：2016-07-29
Applicant: Caterpillar Inc.
Inventor： David Montgomery
Abstract: A piston for a premixed spark-ignited or premixed dual fuel internal combustion engine is disclosed. The piston may be configured to reciprocate along a longitudinal axis of a combustion chamber defined by a cylinder of the engine. The piston may comprise a piston head, a top annular groove configured to receive a top annular ring, and a skirt having a pin bore extending along a pin bore axis that is configured to receive a wrist pin for connecting the piston to a connecting rod. The piston may further comprise a top land formed in the piston head that is chamfered in a direction perpendicular to the pin bore axis such that the top land does not contact an inner wall of the cylinder when the piston rocks about the pin bore axis. The top land may be non-chamfered in a direction parallel to the pin bore axis.
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公开(公告)号：US20180030921A1
公开(公告)日：2018-02-01
申请号：US15223993
申请日：2016-07-29
Applicant: Caterpillar Inc.
Inventor： David Montgomery
CPC classification number: F02F3/28 , F01L3/00 , F02F1/004 , F02F3/00 , F02P15/001
Abstract: A piston for a premixed spark-ignited or premixed dual fuel internal combustion engine is disclosed. The piston may be configured to reciprocate along a longitudinal axis of a combustion chamber defined by a cylinder of the engine. The piston may comprise a piston head, a top annular groove configured to receive a top annular ring, and a skirt having a pin bore extending along a pin bore axis that is configured to receive a wrist pin for connecting the piston to a connecting rod. The piston may further comprise a top land formed in the piston head that is chamfered in a direction perpendicular to the pin bore axis such that the top land does not contact an inner wall of the cylinder when the piston rocks about the pin bore axis. The top land may be non-chamfered in a direction parallel to the pin bore axis.
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Patent Agency Ranking
公开(公告)号：US09133808B2
公开(公告)日：2015-09-15
申请号：US13775735
申请日：2013-02-25
Applicant: Caterpillar Inc.
Inventor： Scott Fiveland , David Montgomery , Alan Stockner
IPC: F02M69/04
CPC classification number: F02M69/04 , F02B25/04 , F02B43/02 , F02D19/10 , F02M21/0251 , F02M21/0269 , F02M21/0281 , F02M57/025 , Y02T10/32 , Y02T10/36
Abstract: Apparatus and methods for injecting gaseous fuel into a compression ignition engine are disclosed. A gaseous fuel injector includes a pintle valve and an intensifier. The pintle valve includes a pintle body defining a pintle bore therethrough, a first sealing surface disposed on a distal end of the pintle body, and a pintle disposed within the pintle bore. The pintle includes a shaft, a radially flared portion, and a second sealing surface disposed on a proximal face of the radially flared portion, such that the first sealing surface faces the second sealing surface. The intensifier includes an intensifier body defining a fuel pump chamber therein, the fuel pump chamber being fluidly coupled to a gaseous fuel supply and the pintle bore, a plunger having a distal end disposed in the fuel pump chamber, and an intensifier piston disposed on a proximal end of the plunger.
Abstract translation: 公开了将气体燃料注入压燃式发动机的装置和方法。 气体燃料喷射器包括枢轴阀和增压器。 枢栓阀包括枢轴，该枢轴体限定穿过其中的枢轴孔，设置在枢轴体的远端上的第一密封表面和设置在枢轴孔内的枢栓。 枢轴包括轴，径向扩张部分和设置在径向扩张部分的近侧面上的第二密封表面，使得第一密封表面面向第二密封表面。 增压器包括在其中限定燃料泵室的增压器主体，燃料泵室流体地联接到气体燃料供应器和枢轴孔，具有设置在燃料泵室中的远端的柱塞和设置在燃料泵室上的增压器活塞 柱塞的近端。
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公开(公告)号：US20140238350A1
公开(公告)日：2014-08-28
申请号：US13775735
申请日：2013-02-25
Applicant: CATERPILLAR INC.
Inventor： Scott Fiveland , David Montgomery , Alan Stockner
IPC: F02M69/04
CPC classification number: F02M69/04 , F02B25/04 , F02B43/02 , F02D19/10 , F02M21/0251 , F02M21/0269 , F02M21/0281 , F02M57/025 , Y02T10/32 , Y02T10/36
Abstract: Apparatus and methods for injecting gaseous fuel into a compression ignition engine are disclosed. A gaseous fuel injector includes a pintle valve and an intensifier. The pintle valve includes a pintle body defining a pintle bore therethrough, a first sealing surface disposed on a distal end of the pintle body, and a pintle disposed within the pintle bore. The pintle includes a shaft, a radially flared portion, and a second sealing surface disposed on a proximal face of the radially flared portion, such that the first sealing surface faces the second sealing surface. The intensifier includes an intensifier body defining a fuel pump chamber therein, the fuel pump chamber being fluidly coupled to a gaseous fuel supply and the pintle bore, a plunger having a distal end disposed in the fuel pump chamber, and an intensifier piston disposed on a proximal end of the plunger.
Abstract translation: 公开了将气体燃料注入压燃式发动机的装置和方法。 气体燃料喷射器包括枢轴阀和增压器。 枢栓阀包括枢轴，该枢轴体限定穿过其中的枢轴孔，设置在枢轴体的远端上的第一密封表面和设置在枢轴孔内的枢栓。 枢轴包括轴，径向扩张部分和设置在径向扩张部分的近侧面上的第二密封表面，使得第一密封表面面向第二密封表面。 增压器包括在其中限定燃料泵室的增压器主体，燃料泵室流体地联接到气体燃料供应器和枢轴孔，具有设置在燃料泵室中的远端的柱塞和设置在燃料泵室上的增压器活塞 柱塞的近端。
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公开(公告)号：US20220196323A1
公开(公告)日：2022-06-23
申请号：US17153648
申请日：2021-01-20
Applicant: Caterpillar Inc.
Inventor： David Montgomery , David M. Ginter
Abstract: A cryogenic fluid containment system is disclosed. The system can store a fluid such as hydrogen at a cryogenic temperature and pressure. As the fluid naturally warms, the fluid can be directed to a portion of a liquefaction system that is configured to perform a cooling technique on the fluid. The cooling techniques may be Joule-Thomson cooling techniques. The liquefaction system may be equipped to perform both non-Joule-Thomson cooling techniques and Joule-Thomson cooling techniques. The system is configured to direct fluid to an appropriate portion of the liquefaction system, which may be based at least in part upon a Joule-Thomson coefficient of the fluid.
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公开(公告)号：US09976517B2
公开(公告)日：2018-05-22
申请号：US14843178
申请日：2015-09-02
Applicant: Caterpillar Inc.
Inventor： Scott B. Fiveland , David Montgomery
CPC classification number: F02M21/0287 , F02B2043/103 , F02M21/06 , Y02T10/32
Abstract: The disclosure describes a system for pressurizing a fluid. The system includes a source of liquid fuel, a pressure build chamber in fluid communication with the source of liquid fuel such that the pressure build chamber is configured to receive a volume of liquid fuel from the source, wherein the pressure build chamber is configured to heat a portion of the volume of liquid fuel to a sufficient temperature to convert the portion of the volume of liquid fuel into a gaseous fuel or supercritical fluid, and wherein the pressure build chamber is configured to increase a pressure of a fluid in the pressure build chamber to a threshold pressure to inject the gaseous fuel or supercritical fluid into an engine.
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公开(公告)号：US20170058837A1
公开(公告)日：2017-03-02
申请号：US14843178
申请日：2015-09-02
Applicant: Caterpillar Inc.
Inventor： Scott B. Fiveland , David Montgomery
CPC classification number: F02M21/0287 , F02B2043/103 , F02M21/06 , Y02T10/32
Abstract: The disclosure describes a system for pressurizing a fluid. The system includes a source of liquid fuel, a pressure build chamber in fluid communication with the source of liquid fuel such that the pressure build chamber is configured to receive a volume of liquid fuel from the source, wherein the pressure build chamber is configured to heat a portion of the volume of liquid fuel to a sufficient temperature to convert the portion of the volume of liquid fuel into a gaseous fuel or supercritical fluid, and wherein the pressure build chamber is configured to increase a pressure of a fluid in the pressure build chamber to a threshold pressure to inject the gaseous fuel or supercritical fluid into an engine.
Abstract translation: 本公开描述了一种用于对流体加压的系统。 该系统包括液体燃料源，与液体燃料源流体连通的压力建立室，使得压力建立室被配置为从源接收一定体积的液体燃料，其中压力建立室被配置为加热 液体燃料的体积的一部分达到足够的温度以将液体燃料的体积的一部分转化为气体燃料或超临界流体，并且其中压力建立室被配置为增加压力建立室中的流体的压力 达到将气态燃料或超临界流体注入发动机的阈值压力。
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