DE202011001400U1 - Liquefied petroleum gas injection (LPG, LPG) for diesel engines - Google Patents

Liquefied petroleum gas injection (LPG, LPG) for diesel engines Download PDF

Info

Publication number
DE202011001400U1
DE202011001400U1 DE202011001400U DE202011001400U DE202011001400U1 DE 202011001400 U1 DE202011001400 U1 DE 202011001400U1 DE 202011001400 U DE202011001400 U DE 202011001400U DE 202011001400 U DE202011001400 U DE 202011001400U DE 202011001400 U1 DE202011001400 U1 DE 202011001400U1
Authority
DE
Germany
Prior art keywords
lpg
separate
gas injectors
gas
injectors
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Expired - Lifetime
Application number
DE202011001400U
Other languages
German (de)
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Autogastec Ug (haftungsbeschraenkt) De
Original Assignee
Tappe Wolfgang Dr 38126
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Tappe Wolfgang Dr 38126 filed Critical Tappe Wolfgang Dr 38126
Priority to DE202011001400U priority Critical patent/DE202011001400U1/en
Publication of DE202011001400U1 publication Critical patent/DE202011001400U1/en
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

Links

Images

Classifications

    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F02—COMBUSTION ENGINES; HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
    • F02M—SUPPLYING COMBUSTION ENGINES IN GENERAL WITH COMBUSTIBLE MIXTURES OR CONSTITUENTS THEREOF
    • F02M21/00—Apparatus for supplying engines with non-liquid fuels, e.g. gaseous fuels stored in liquid form
    • F02M21/02—Apparatus for supplying engines with non-liquid fuels, e.g. gaseous fuels stored in liquid form for gaseous fuels
    • F02M21/0218—Details on the gaseous fuel supply system, e.g. tanks, valves, pipes, pumps, rails, injectors or mixers
    • F02M21/0248—Injectors
    • F02M21/0278—Port fuel injectors for single or multipoint injection into the air intake system
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F02—COMBUSTION ENGINES; HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
    • F02D—CONTROLLING COMBUSTION ENGINES
    • F02D19/00—Controlling engines characterised by their use of non-liquid fuels, pluralities of fuels, or non-fuel substances added to the combustible mixtures
    • F02D19/02—Controlling engines characterised by their use of non-liquid fuels, pluralities of fuels, or non-fuel substances added to the combustible mixtures peculiar to engines working with gaseous fuels
    • F02D19/021—Control of components of the fuel supply system
    • F02D19/023—Control of components of the fuel supply system to adjust the fuel mass or volume flow
    • F02D19/024—Control of components of the fuel supply system to adjust the fuel mass or volume flow by controlling fuel injectors
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F02—COMBUSTION ENGINES; HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
    • F02D—CONTROLLING COMBUSTION ENGINES
    • F02D19/00—Controlling engines characterised by their use of non-liquid fuels, pluralities of fuels, or non-fuel substances added to the combustible mixtures
    • F02D19/02—Controlling engines characterised by their use of non-liquid fuels, pluralities of fuels, or non-fuel substances added to the combustible mixtures peculiar to engines working with gaseous fuels
    • F02D19/026—Measuring or estimating parameters related to the fuel supply system
    • F02D19/027—Determining the fuel pressure, temperature or volume flow, the fuel tank fill level or a valve position
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F02—COMBUSTION ENGINES; HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
    • F02M—SUPPLYING COMBUSTION ENGINES IN GENERAL WITH COMBUSTIBLE MIXTURES OR CONSTITUENTS THEREOF
    • F02M21/00—Apparatus for supplying engines with non-liquid fuels, e.g. gaseous fuels stored in liquid form
    • F02M21/02—Apparatus for supplying engines with non-liquid fuels, e.g. gaseous fuels stored in liquid form for gaseous fuels
    • F02M21/0203—Apparatus for supplying engines with non-liquid fuels, e.g. gaseous fuels stored in liquid form for gaseous fuels characterised by the type of gaseous fuel
    • F02M21/0209—Hydrocarbon fuels, e.g. methane or acetylene
    • F02M21/0212—Hydrocarbon fuels, e.g. methane or acetylene comprising at least 3 C-Atoms, e.g. liquefied petroleum gas [LPG], propane or butane
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F02—COMBUSTION ENGINES; HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
    • F02M—SUPPLYING COMBUSTION ENGINES IN GENERAL WITH COMBUSTIBLE MIXTURES OR CONSTITUENTS THEREOF
    • F02M21/00—Apparatus for supplying engines with non-liquid fuels, e.g. gaseous fuels stored in liquid form
    • F02M21/02—Apparatus for supplying engines with non-liquid fuels, e.g. gaseous fuels stored in liquid form for gaseous fuels
    • F02M21/0218—Details on the gaseous fuel supply system, e.g. tanks, valves, pipes, pumps, rails, injectors or mixers
    • F02M21/0287—Details on the gaseous fuel supply system, e.g. tanks, valves, pipes, pumps, rails, injectors or mixers characterised by the transition from liquid to gaseous phase ; Injection in liquid phase; Cooling and low temperature storage
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F02—COMBUSTION ENGINES; HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
    • F02M—SUPPLYING COMBUSTION ENGINES IN GENERAL WITH COMBUSTIBLE MIXTURES OR CONSTITUENTS THEREOF
    • F02M67/00—Apparatus in which fuel-injection is effected by means of high-pressure gas, the gas carrying the fuel into working cylinders of the engine, e.g. air-injection type
    • F02M67/06—Apparatus in which fuel-injection is effected by means of high-pressure gas, the gas carrying the fuel into working cylinders of the engine, e.g. air-injection type the gas being other than air, e.g. steam, combustion gas
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F02—COMBUSTION ENGINES; HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
    • F02B—INTERNAL-COMBUSTION PISTON ENGINES; COMBUSTION ENGINES IN GENERAL
    • F02B29/00—Engines characterised by provision for charging or scavenging not provided for in groups F02B25/00, F02B27/00 or F02B33/00 - F02B39/00; Details thereof
    • F02B29/04—Cooling of air intake supply
    • F02B29/0406—Layout of the intake air cooling or coolant circuit
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F02—COMBUSTION ENGINES; HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
    • F02B—INTERNAL-COMBUSTION PISTON ENGINES; COMBUSTION ENGINES IN GENERAL
    • F02B37/00—Engines characterised by provision of pumps driven at least for part of the time by exhaust
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F02—COMBUSTION ENGINES; HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
    • F02M—SUPPLYING COMBUSTION ENGINES IN GENERAL WITH COMBUSTIBLE MIXTURES OR CONSTITUENTS THEREOF
    • F02M26/00—Engine-pertinent apparatus for adding exhaust gases to combustion-air, main fuel or fuel-air mixture, e.g. by exhaust gas recirculation [EGR] systems
    • F02M26/02—EGR systems specially adapted for supercharged engines
    • F02M26/04—EGR systems specially adapted for supercharged engines with a single turbocharger
    • F02M26/05—High pressure loops, i.e. wherein recirculated exhaust gas is taken out from the exhaust system upstream of the turbine and reintroduced into the intake system downstream of the compressor
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F02—COMBUSTION ENGINES; HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
    • F02M—SUPPLYING COMBUSTION ENGINES IN GENERAL WITH COMBUSTIBLE MIXTURES OR CONSTITUENTS THEREOF
    • F02M26/00—Engine-pertinent apparatus for adding exhaust gases to combustion-air, main fuel or fuel-air mixture, e.g. by exhaust gas recirculation [EGR] systems
    • F02M26/13—Arrangement or layout of EGR passages, e.g. in relation to specific engine parts or for incorporation of accessories
    • F02M26/22—Arrangement or layout of EGR passages, e.g. in relation to specific engine parts or for incorporation of accessories with coolers in the recirculation passage
    • F02M26/23—Layout, e.g. schematics
    • F02M26/25—Layout, e.g. schematics with coolers having bypasses
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02T—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO TRANSPORTATION
    • Y02T10/00—Road transport of goods or passengers
    • Y02T10/10—Internal combustion engine [ICE] based vehicles
    • Y02T10/30—Use of alternative fuels, e.g. biofuels

Landscapes

  • Engineering & Computer Science (AREA)
  • Chemical & Material Sciences (AREA)
  • Combustion & Propulsion (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • General Chemical & Material Sciences (AREA)
  • Oil, Petroleum & Natural Gas (AREA)
  • Output Control And Ontrol Of Special Type Engine (AREA)
  • Electrical Control Of Air Or Fuel Supplied To Internal-Combustion Engine (AREA)

Abstract

Die Schutzansprüche beziehen sich auf den konstruktiven Aufbau des Einspritzsystems von LPG (Autogas) bei einem Dieselmotor nach der Drosselklappe (A) über separate Gas-injektoren (I). Die Versorgung dieser speziellen Gas-Injektoren durch den Kraftstoff LPG erfolgt über eine separate Gaspumpe, welche das Autogas in flüssiger Phase zu den Injektoren fördert (II). Der nötige Arbeitsdruck der Gas-Injektoren wird über ein separates Druckregelventil in der Rücklaufleitung eingestellt (III). 1. Einspritzung von LPG (AutoGas) nach Drosselklappe über separate Gasinjektoren. 2. Versorgung der Gasinjektoren durch LPG in flüssiger Phase über eine separate Pumpe. 3. Einstellung des Arbeitsdruckes der Pumpe über separates Druckregelventil in RücklaufleitungThe protection claims relate to the design of the LPG (LPG) injection system for a diesel engine after the throttle valve (A) via separate gas injectors (I). These special gas injectors are supplied with LPG fuel by a separate gas pump, which delivers the LPG to the injectors in the liquid phase (II). The necessary working pressure of the gas injectors is set via a separate pressure control valve in the return line (III). 1. Injection of LPG (AutoGas) after throttle valve via separate gas injectors. 2. Supply of the gas injectors by LPG in the liquid phase via a separate pump. 3. Setting the working pressure of the pump via a separate pressure control valve in the return line

Description

Herkömmliche Systeme dieser Art arbeiten über einen Verdampfer, welcher das Flüssiggas (auch bekannt als Autogas oder kurz: LPG) in der Gasphase bereitstellt und dieses dann über ein Ventil in den Ansaugtrakt VOR den Turbolader dosiert wird.Conventional systems of this type operate via an evaporator, which provides the liquefied gas (also known as LPG or LPG) in the gas phase and this is then metered via a valve in the intake BEFORE the turbocharger.

Der Nachteil dabei ist, dass das zusätzliche Gasvolumen (expandiert) zum einen den äquivalenten Sauerstoffanteil aus der Ansaugluft verdrängt und zum anderen über den Verdichter des Turboladers stark erhitzt wird und somit die nutzbare Energiedichte verringert wird. Der Gesamtfüllungsgrad des Zylinders wird deutlich reduziert.The disadvantage here is that the additional gas volume (expanded) on the one hand displaces the equivalent oxygen content from the intake air and on the other hand is strongly heated via the compressor of the turbocharger and thus the usable energy density is reduced. The overall degree of filling of the cylinder is significantly reduced.

Durch die Einspritzung von Flüssiggas (A) über separate Gas-Injektoren in den Ansaugtrakt eines Dieselmotors in flüssiger Phase treten die oben beschriebenen Nachteile nicht auf.By injecting liquid gas (A) via separate gas injectors into the intake tract of a diesel engine in the liquid phase, the disadvantages described above do not occur.

Vielmehr kann durch die Expansion des Gases erst im Ansaugtrakt nach dem Turbolader die Verdampfungsenthalpie genutzt werden (Temperatur des expandierenden Gases ca. –25° Celsius) wodurch es insgesamt zu einer Verringerung der Ladelufttemperatur (Prinzip Ladeluftkühler) kommt und der Füllungsgrad im Zylinder steigt. Der sich einzustellende Leistungszuwachs durch dieses System wird dem Gesamtkonzept zugute getragen, in dem die Menge an Diesel, die für einen Verbrennungstakt notwendig ist entsprechend reduziert wird, wodurch sich eine erhebliche Verbrauchsreduzierung von Diesel einstellt.Rather, can be used by the expansion of the gas only in the intake after the turbocharger, the enthalpy of vaporization (temperature of the expanding gas about -25 ° Celsius) resulting in a total reduction of the charge air temperature (principle intercooler) and the degree of filling in the cylinder increases. The power gain to be adjusted by this system benefits the overall concept, in which the amount of diesel necessary for a combustion stroke is correspondingly reduced, thereby resulting in a significant reduction in diesel consumption.

Die Ansteuerung der Gas-Injektoren (entweder Zylinderselektiv oder je ein Gas-Injektor pro Zylinderbank) erfolgt über ein separates Steuergerät, welches als Eingangssignale z. B. folgende Parameter erhält:

  • • PWG (Pedalwertgeber für den Lastzustand)
  • • Raildruck und Railtemperatur vom Dieseleinspritzsystem
  • • Dampfdruck und Temperatur vom Gassystem
The control of the gas injectors (either cylinder selectively or ever a gas injector per cylinder bank) via a separate control unit, which serves as input signals z. B. receives the following parameters:
  • • PWG (pedal conditioner for the load condition)
  • • Rail pressure and rail temperature from the diesel injection system
  • • Vapor pressure and temperature of the gas system

Der Aufbau der Gasanlage sieht wie folgt aus:
Gastank mit zusätzlicher Gaspumpe inkl. Vor- und Rücklauf, Druckregelventil mit Sicherheitsabschaltung, separate Gas-Injektoren in der Vorlaufleitung (entweder für jeden Zylinder einen oder jeweils einen pro Zylinderbank), Druckregelventil, Gassteuergerät mit Anzeigeeinheit.The construction of the gas system looks like this:
Gas tank with additional gas pump including supply and return, pressure control valve with safety shutdown, separate gas injectors in the supply line (either for each cylinder one or one per cylinder bank), pressure control valve, gas control unit with display unit.

Claims (1)

Die Schutzansprüche beziehen sich auf den konstruktiven Aufbau des Einspritzsystems von LPG (Autogas) bei einem Dieselmotor nach der Drosselklappe (A) über separate Gas-injektoren (I). Die Versorgung dieser speziellen Gas-Injektoren durch den Kraftstoff LPG erfolgt über eine separate Gaspumpe, welche das Autogas in flüssiger Phase zu den Injektoren fördert (II). Der nötige Arbeitsdruck der Gas-Injektoren wird über ein separates Druckregelventil in der Rücklaufleitung eingestellt (III). 1. Einspritzung von LPG (AutoGas) nach Drosselklappe über separate Gasinjektoren. 2. Versorgung der Gasinjektoren durch LPG in flüssiger Phase über eine separate Pumpe. 3. Einstellung des Arbeitsdruckes der Pumpe über separates Druckregelventil in RücklaufleitungThe protection claims relate to the structural design of the injection system of LPG (LPG) in a diesel engine after the throttle valve (A) via separate gas injectors (I). The supply of these special gas injectors by the fuel LPG via a separate gas pump, which promotes LPG in the liquid phase to the injectors (II). The required working pressure of the gas injectors is set via a separate pressure control valve in the return line (III). 1. Injection of LPG (AutoGas) to throttle via separate gas injectors. 2. Supply of gas injectors by LPG in liquid phase via a separate pump. 3. Adjust the working pressure of the pump via a separate pressure control valve in the return line
DE202011001400U 2011-01-12 2011-01-12 Liquefied petroleum gas injection (LPG, LPG) for diesel engines Expired - Lifetime DE202011001400U1 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
DE202011001400U DE202011001400U1 (en) 2011-01-12 2011-01-12 Liquefied petroleum gas injection (LPG, LPG) for diesel engines

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DE202011001400U DE202011001400U1 (en) 2011-01-12 2011-01-12 Liquefied petroleum gas injection (LPG, LPG) for diesel engines

Publications (1)

Publication Number Publication Date
DE202011001400U1 true DE202011001400U1 (en) 2011-06-01

Family

ID=44312758

Family Applications (1)

Application Number Title Priority Date Filing Date
DE202011001400U Expired - Lifetime DE202011001400U1 (en) 2011-01-12 2011-01-12 Liquefied petroleum gas injection (LPG, LPG) for diesel engines

Country Status (1)

Country Link
DE (1) DE202011001400U1 (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2015090520A1 (en) * 2013-12-19 2015-06-25 Daimler Ag Charged internal combustion engine

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2015090520A1 (en) * 2013-12-19 2015-06-25 Daimler Ag Charged internal combustion engine

Similar Documents

Publication Publication Date Title
US10227934B2 (en) Dual-fuel engine combustion mode transition controls
US10233871B2 (en) Air-enriched gaseous fuel direct injection for an internal combustion engine
CN103511104B (en) An internal combustion engine with control of fuel gas injection pressure
US8095294B1 (en) Method for determining fuel injection on-time in a gaseous-fuelled internal combustion engine
US20130306029A1 (en) Direct Injection Gas Engine and Method
US9410490B2 (en) Fuel selection system and method for dual fuel engines
US10167786B2 (en) Method and system for operating gaseous-fuelled direct injection internal combustion engine
CN103422998A (en) Direct injection gas engine and method
RU2015152976A (en) METHOD (OPTIONS) AND FUEL INJECTION SYSTEM WITH CONSTANT AND VARIABLE PRESSURE
DE102014001625A1 (en) GAS FUEL
CN103982308A (en) Control system and control method of oil/gas dual-fuel engine in electronic control oil supply
CN104838126A (en) Gas engine driving system and ship
DE102010033394A1 (en) Method for operating a combustion engine with spark ignition
US20150000630A1 (en) Rapid LNG Engine Warm-Up Utilizing Engine Compression Brakes
US10677175B2 (en) Ventilation controls for dual-fuel engines
US20180100469A1 (en) Dual Fuel Ammonia Combustion in Diesel Engines
US9695758B2 (en) Fuel system having multiple combustion modes
DE202011001400U1 (en) Liquefied petroleum gas injection (LPG, LPG) for diesel engines
RU88397U1 (en) BATTERY SYSTEM OF GAS-DIESEL FUEL SUPPLY TO ENGINE CYLINDERS
EP2796689B1 (en) Liquid fuel ignited gas engine with emergency operation
RU151684U1 (en) FUEL SUPPLY SYSTEM OF THE GAS DIESEL WITH INTERNAL MIXING
Kniaziewicz et al. Selected aspects of application of dual fuel marine engines
KR20190038657A (en) Fuel system for supplying gaseous fuel to an internal combustion piston engine and method of operating the internal combustion piston engine
Galushchak Methods for diesel feed system control using dynamic regulation of the fuel mixture percentage composition
PL220327B1 (en) Gas injection system for a diesel engine

Legal Events

Date Code Title Description
R086 Non-binding declaration of licensing interest
R207 Utility model specification

Effective date: 20110707

R150 Utility model maintained after payment of first maintenance fee after three years

Effective date: 20140320

R081 Change of applicant/patentee

Owner name: AUTOGASTEC UG (HAFTUNGSBESCHRAENKT), DE

Free format text: FORMER OWNER: TAPPE, WOLFGANG, DR., 38126 BRAUNSCHWEIG, DE

R157 Lapse of ip right after 6 years