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    Bi-fuel control system and retrofit assembly for diesel engines
    31.
    发明申请
    Bi-fuel control system and retrofit assembly for diesel engines 有权
    双燃料控制系统和柴油发动机改装装配

    公开(公告)号：US20020007805A1

    公开(公告)日：2002-01-24

    申请号：US09878761

    申请日：2001-06-11

    Inventor： Jason E. Green

    IPC: F02M021/02

    CPC classification number: F02B63/04 ,  F02B3/06 ,  F02B43/00 ,  F02B45/10 ,  F02B69/04 ,  F02B2075/025 ,  F02B2201/064 ,  F02D19/023 ,  F02D19/0605 ,  F02D19/0631 ,  F02D19/066 ,  F02D19/08 ,  F02D19/10 ,  F02D19/105 ,  F02D29/06 ,  F02M21/04 ,  F02M23/03 ,  Y02T10/146 ,  Y02T10/32 ,  Y02T10/34 ,  Y02T10/36

    Abstract: A bi-fuel control system and assembly for modifying and operating a diesel engine to the extent that the engine is capable of running in either a full diesel fuel mode or a bi-fuel mode, where bi-fuel is defined as a mixture of a methane based gas and diesel fuel. The control system and assembly are designed to provide for either manual or automatic transfer between modes for continuous engine operation without interruption in output and at substantially equivalent efficiency levels. A gas control sub-system and sub-assembly are provided to control the amount of gas supplied to the diesel engine in the bi-fuel mode, and an electronic control sub-system and sub-assembly are provided to control the overall system and assembly based on engine load as determined from the intake manifold air pressure.

    Abstract translation: 一种用于修改和操作柴油发动机的双燃料控制系统和组件，其特征在于，发动机能够以完全柴油燃料模式或双燃料模式运行，其中双燃料被定义为 甲烷气和柴油。 控制系统和组件设计用于在连续发动机运行的模式之间进行手动或自动转换，而不产生中断和基本上等效的效率水平。 提供气体控制子系统和子组件以控制以双燃料模式供应到柴油发动机的气体量，并且提供电子控制子系统和子组件以控制整个系统和组件 基于从进气歧管空气压力确定的发动机负载。

    Pilot/main fuel injection method for diesel engines
    32.
    发明授权
    Pilot/main fuel injection method for diesel engines 失效
    柴油发动机的引燃/主燃料喷射方法

    公开(公告)号：US5243932A

    公开(公告)日：1993-09-14

    申请号：US866516

    申请日：1992-04-10

    Applicant: Robert Herrmann

    Inventor： Robert Herrmann

    IPC: F02D19/08 ,  F02B3/06 ,  F02B7/02 ,  F02B47/00 ,  F02B47/02 ,  F02D41/38 ,  F02M25/022 ,  F02M43/00 ,  F02M45/04

    CPC classification number: F02M25/0228 ,  F02B47/02 ,  F02B7/02 ,  F02B2201/064 ,  F02B3/06

    Abstract: A fuel injection method for diesel internal combustion engines uses main injection of a gas main fuel and pilot injection of a liquid secondary fuel to initialize combustion of the main fuel. The liquid fuel is injected by an injector pump designed to enable the engine to achieve its maximum power with the liquid fuel only. The pilot injection comprises a mixture of water and liquid fuel.

    Abstract translation: 用于柴油内燃机的燃料喷射方法使用主喷射气体主燃料和先导喷射液体二次燃料来初始化主燃料的燃烧。 液体燃料由注射泵注射，该注射泵设计成使得发动机仅能够利用液体燃料来实现其最大功率。 引燃喷射包括水和液体燃料的混合物。

    Method of operating carburetted dual-fuel engines with diesel pilot oil injection
    34.
    发明授权
    Method of operating carburetted dual-fuel engines with diesel pilot oil injection 失效
    使用柴油先导注油的化油双燃料发动机的运行方法

    公开(公告)号：US4831993A

    公开(公告)日：1989-05-23

    申请号：US138318

    申请日：1987-12-28

    Applicant: Erik Kelgard

    Inventor： Erik Kelgard

    IPC: F02B3/06 ,  F02D19/10

    CPC classification number: F02D19/0605 ,  F02D19/061 ,  F02D19/105 ,  F02B2201/064 ,  F02B3/06 ,  F02D19/066 ,  Y02T10/36

    Abstract: This is concerned with a method of operating a dual-fuel engine, meaning an engine that is supplied with a mixture of gaseous fuel and air which is ignited by an injection of a small amount of so-called pilot oil which is diesel fuel. Additionally the invention is concerned with a method of operation that injects an approximately constant amount of pilot oil regardless of speed variations so as to save fuel at the higher speeds and is specifically applicable or useful with over-the road dual fuel engines, meaning mobile units on trucks, tractors, etc.

    Abstract translation: 这涉及一种操作双燃料发动机的方法，这意味着被提供有气体燃料和空气的混合物的发动机，该发动机通过喷射少量所谓的柴油燃料导向油被点燃。 此外，本发明涉及一种操作方法，其喷射大致恒定量的先导油，而不管速度变化，以便以更高的速度节省燃料，并且特别适用于或超过道路双燃料发动机，这意味着移动单元 卡车，拖拉机等

    Two-fuel injector apparatus for an internal combustion engine
    35.
    发明授权
    Two-fuel injector apparatus for an internal combustion engine 失效
    用于内燃机的双燃料喷射器装置

    公开(公告)号：US4700672A

    公开(公告)日：1987-10-20

    申请号：US24704

    申请日：1987-03-11

    Applicant: Michel Baguena

    Inventor： Michel Baguena

    IPC: F02M43/02 ,  F02D19/08 ,  F02D19/10 ,  F02M43/00 ,  F02M43/04 ,  F02M45/02 ,  F02M45/08 ,  F02M59/10 ,  F02M59/36

    CPC classification number: F02M43/00 ,  F02D19/0684 ,  F02D19/0689 ,  F02D19/0694 ,  F02D19/08 ,  F02D19/10 ,  F02M59/102 ,  F02M59/361 ,  F02B2201/064 ,  F02M45/086 ,  Y02T10/36

    Abstract: An injector apparatus for an internal combustion engine and suitable for injecting two different fuels, namely a "pilot injection" liquid fuel and a "main injection" liquid or gaseous fuel comprising a low-pressure pump (1B) for pilot injection fuel feed, a high-pressure pump (1A) of the injection pump type, two fuel injectors, and a metering pump (30) selectively connecting the low-pressure pump, the high-pressure pump, and the two fuel injectors. The metering pump (30) includes a transfer piston (2) and two abutments (3, 4) which are independently adjustable so as to vary the relative importance of pilot injection and of main injection and also vary the extent to which the two injection stages overlap.

    Abstract translation: 一种用于内燃机的喷射器装置，适用于喷射两种不同燃料，即“先导喷射”液体燃料和“主喷射”液体或气体燃料，其包括用于引燃喷射燃料进料的低压泵（1B） 注射泵型的高压泵（1A），两个燃料喷射器和选择性地连接低压泵，高压泵和两个燃料喷射器的计量泵（30）。 计量泵（30）包括转移活塞（2）和两个独立可调节的支座（3,4），以便改变引燃喷射和主喷射的相对重要性，并且还改变两个喷射级 交叠。

    Gas-diesel dual fuel engine
    36.
    发明授权
    Gas-diesel dual fuel engine 失效
    燃气柴油双燃料发动机

    公开(公告)号：US4603674A

    公开(公告)日：1986-08-05

    申请号：US389093

    申请日：1982-06-16

    Applicant: Mitsuo Tanaka

    Inventor： Mitsuo Tanaka

    IPC: F02B3/06 ,  F02D19/10 ,  F02M39/00

    CPC classification number: F02D19/0607 ,  F02D19/0628 ,  F02D19/0678 ,  F02D19/105 ,  F02B2201/064 ,  F02B3/06 ,  Y02T10/36

    Abstract: A gas-diesel dual fuel engine operative with both a gaseous fuel and a diesel fuel oil. The engine has an electronic governor circuit adapted to receive both a speed signal representing actual speed of engine and a set speed signal representing a predetermined command speed of the engine, electric actuators adapted to actuate a diesel fuel injection pump and a gaseous fuel regulating valve, respectively, in response to the signal from the electronic governor circuit, and a mode switching control circuit connected to the electronic governor circuit and adapted to switch the operation of the electric actuators between a diesel fuel operation mode and a gaseous fuel operation mode.

    Abstract translation: 一种兼具气体燃料和柴油燃料油的气体柴油双燃料发动机。 发动机具有电子调速器电路，其适于接收表示发动机的实际速度的速度信号和表示发动机的预定指令速度的设定速度信号，适于致动柴油喷射泵和气体燃料调节阀的电动致动器， 分别响应于来自电子调速器电路的信号，以及模式切换控制电路，连接到电子调速器电路，并且适于在柴油机操作模式和气体燃料操作模式之间切换电动致动器的操作。

    Methods and systems for multi-fuel engine startup
    37.
    发明授权
    Methods and systems for multi-fuel engine startup 有权

    公开(公告)号：US11719154B2

    公开(公告)日：2023-08-08

    申请号：US17455397

    申请日：2021-11-17

    Applicant: Transportation IP Holdings, LLC

    Inventor： Adam Edgar Klingbeil ,  Thomas Michael Lavertu ,  Eric Dillen

    IPC: F02B69/04

    CPC classification number: F02B69/04 ,  F02B2201/064

    Abstract: Various methods and systems are provided for engine startup. In one example, a method for an engine includes injecting a fuel mixture with a proportion of a first fuel to a second fuel to decrease carbon emissions, in response to detection of or request for the engine to start. The proportion of the first fuel to the second fuel in the injected fuel mixture is decreased in response to engine speed reaching an idling speed. The first fuel may be a non-hydrocarbon-based fuel and the second fuel may be a hydrocarbon-based fuel.

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