CA2506143A1 - High-pressure gaseous fuel injection - Google Patents

High-pressure gaseous fuel injection Download PDF

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Publication number
CA2506143A1
CA2506143A1 CA002506143A CA2506143A CA2506143A1 CA 2506143 A1 CA2506143 A1 CA 2506143A1 CA 002506143 A CA002506143 A CA 002506143A CA 2506143 A CA2506143 A CA 2506143A CA 2506143 A1 CA2506143 A1 CA 2506143A1
Authority
CA
Canada
Prior art keywords
fuel
oil
gaseous fuel
valve
pressure
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.)
Granted
Application number
CA002506143A
Other languages
French (fr)
Other versions
CA2506143C (en
Inventor
Roger C. Popp
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.)
Woodward Inc
Original Assignee
Woodward Governor Company
Roger C. Popp
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
Priority claimed from US09/482,481 external-priority patent/US6270024B1/en
Application filed by Woodward Governor Company, Roger C. Popp filed Critical Woodward Governor Company
Publication of CA2506143A1 publication Critical patent/CA2506143A1/en
Application granted granted Critical
Publication of CA2506143C publication Critical patent/CA2506143C/en
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

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Classifications

    • 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

Abstract

A high-pressure fuel injection system for injecting high-pressure gaseous fuel from a gaseous fuel supply into cylinders of an engine. The injection system comprises an oil reservoir of hydraulic oil, a hydraulic oil supply of hydraulic oil at a pressure higher than the oil reservoir, and a gas/oil separator located in a safe location remote from the cylinders of the engine. The gas/oil separator is adapted to separate any gaseous fuel from the hydraulic oil, and return the separated oil to the oil reservoir. A plurality of high-pressure, fuel-injector valve assemblies inject fuel into the cylinders of the engine; each fuel-injector valve assembly including an electrohydraulic valve and a fuel injector. The electrohydraulic valve is connected to the high-pressure hydraulic oil supply, the oil reservoir and an electronic controller providing electrical control signals, and the electrohydraulic valve creates successive hydraulic signals in response to electrical control signals. The fuel injector includes a fuel valve operated by a piston, and an outlet port in communication with the gaseous fuel supply. The piston reciprocates the fuel valve in response to hydraulic signals to open and close the outlet port, and thereby successively injects gaseous fuel into the cylinder. Each fuel- injector valve assembly further includes means for collecting leakage of oil and leakage of gaseous fuel, and communicates any such leaked oil and leaked gas to the gas/oil separator.
CA002506143A 2000-01-12 2001-01-04 High-pressure gaseous fuel injection Expired - Lifetime CA2506143C (en)

Applications Claiming Priority (3)

Application Number Priority Date Filing Date Title
US09/482,481 2000-01-12
US09/482,481 US6270024B1 (en) 2000-01-12 2000-01-12 Hydraulically actuated fuel injector cartridge and system for high pressure gaseous fuel injection
CA002330226A CA2330226C (en) 2000-01-12 2001-01-04 Hydraulically-actuated fuel injector and cartridge

Related Parent Applications (1)

Application Number Title Priority Date Filing Date
CA002330226A Division CA2330226C (en) 2000-01-12 2001-01-04 Hydraulically-actuated fuel injector and cartridge

Publications (2)

Publication Number Publication Date
CA2506143A1 true CA2506143A1 (en) 2001-07-12
CA2506143C CA2506143C (en) 2007-05-01

Family

ID=34701682

Family Applications (1)

Application Number Title Priority Date Filing Date
CA002506143A Expired - Lifetime CA2506143C (en) 2000-01-12 2001-01-04 High-pressure gaseous fuel injection

Country Status (1)

Country Link
CA (1) CA2506143C (en)

Also Published As

Publication number Publication date
CA2506143C (en) 2007-05-01

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Effective date: 20210104