EP1217201A2 - Tuyau pour alimenter en carburant un moteur à combustion interne - Google Patents

Tuyau pour alimenter en carburant un moteur à combustion interne Download PDF

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Publication number
EP1217201A2
EP1217201A2 EP01500114A EP01500114A EP1217201A2 EP 1217201 A2 EP1217201 A2 EP 1217201A2 EP 01500114 A EP01500114 A EP 01500114A EP 01500114 A EP01500114 A EP 01500114A EP 1217201 A2 EP1217201 A2 EP 1217201A2
Authority
EP
European Patent Office
Prior art keywords
pistons
fuel
entrance
diameter
piston
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.)
Withdrawn
Application number
EP01500114A
Other languages
German (de)
English (en)
Other versions
EP1217201A3 (fr
Inventor
Juan Fierro Aguirre
José Fierro Aguirre
Juan A. Torres Garcia
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.)
Individual
Original Assignee
Individual
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 Individual filed Critical Individual
Publication of EP1217201A2 publication Critical patent/EP1217201A2/fr
Publication of EP1217201A3 publication Critical patent/EP1217201A3/fr
Withdrawn legal-status Critical Current

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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
    • F02M37/00—Apparatus or systems for feeding liquid fuel from storage containers to carburettors or fuel-injection apparatus; Arrangements for purifying liquid fuel specially adapted for, or arranged on, internal-combustion engines
    • F02M37/0011—Constructional details; Manufacturing or assembly of elements of fuel systems; Materials therefor
    • F02M37/0041—Means for damping pressure pulsations

Definitions

  • the present invention relates to a device for reducing the contaminating components in exhaust gases from combustion engines, especially contaminating components due to poor combustion.
  • the present invention has the object of eliminating the problems stated above by means of a device that ensures a suitable fuel supply or with the smallest possible deviations at all times, such that a perfect or almost perfect combustion is attained.
  • Another object of the invention is a device for the stated aim, which is of a simple constitution, cheap, of safe operation and easy installation.
  • the device of the invention comprises a housing that defines an airtight chamber equipped with an entrance orifice and another exit orifice, both located opposite one another. Within this chamber are arranged, between the aforementioned orifices, two end pistons and an intermediate compression spring. Each one of the aforementioned pistons has an axially drilled hole, the holes of the two pistons being of different diameters and both holes being of a smaller diameter than the diameter of the entrance and exit orifices of the chamber. The hole for the piston next to the exit orifice will be of a smaller diameter than that of the piston next to the entrance hole.
  • the device of the invention is applicable to any machine that runs on the combustion of oil derivatives.
  • the device described is designed to be installed in the admission tubing from the fuel tank to the fuel pump, so achieving with this device a modification of the rate, pressure and flow of the fuel as a function of the fuel requirement by the pump.
  • the object of the invention is to supply the engine or machine with the sufficient quantity of fuel required by the pump to generate the desired effects in said machine, maintaining the optimum power of the machine or engine at all times, regardless of increases or decreases of pressure before the pump.
  • the device of the invention With the aforementioned constitution, between the two pistons, a space in which the compression spring is to be placed is established.
  • the fuel reaches this space through the axial hole of the first of the pistons, in which there is an increase in the speed of the fuel, as this hole has a much smaller cross-section than that of the entrance orifice of the chamber.
  • This hole on reaching an intermediate space, causes a reduction in the rate and turbulence, as well as an increase in pressure, because the axial hole of the second of the pistons is of a smaller diameter than that of the first piston.
  • a partial displacement of the pistons may take place, against the force of the compression spring mounted between the two. In this fashion, depending on the conditions required by the pump, the device of the invention will modify the rate, pressure and flow of the fuel, adapting it to the demands of the engine to achieve the best possible combustion.
  • the device shown in the drawing comprises a body or housing 1 that defines an axial chamber, with a circular cross-section, composed in the given example of three consecutive parts of different diameters, a first part 2 of larger diameter, an intermediate part 3 and an end part 4 of smaller diameter. Part 2 of greater diameter can be threaded to allow attachment of a closing lid 5, in which there is an axial entrance conduct 6. From part 4, the body or housing 1 has an orifice and exit conduct 7.
  • pistons referenced with numbers 8 and 9 are housed, the first one of them in the intermediate part 3, with an external diameter coinciding with the that of said part, while the piston 9 is housed in the end part 4 of smaller diameter.
  • the pistons 8 and 9 have other axial through holes referenced with numbers 10 and 11, each with a different diameter, much smaller than the diameter of the conducts of the entrance 6 and exit 7.
  • the hole 11 of the piston 9 is of a smaller diameter than the hole 10 of the piston 8.
  • the described device is designed to be mounted on the admission tubing of fuel, between the tank and the fuel pump, such that the fuel is displaced in the direction of the arrow, from the orifice and entrance conduct 6 to the orifice and exit conduct 7.
  • the fluid penetrates the conduct 6 and reaches the hole 15 of the piston 8, of a much smaller cross-section, producing as a result an increase in the speed of the fuel.
  • the fuel reaches the chamber or intermediate space 13, where turbulence is produced and there is an increase in pressure, because the axial hole 11 of the piston 9 is of a smaller diameter than the hole 10, which forces the fuel through hole 11 at great speed to finally emerge through the conduct 7.
  • overpressure can be produced from the conduct of exit 7, just as at the entrance of the fuel through the conduct 6, which leads to displacements of the pistons 8 and 9 against the tension of the spring 12, with regulation as a function of overpressure that remains in the chamber or intermediate space 13.
  • an auto-regulation is achieved such that the amount of fuel supplied through conduct 7 corresponds to the operating conditions of the engine at each moment. This means that the necessary amount of fuel will reach the combustion chamber at all times, thus ensuring a good combustion with the result of a reduction in the contaminating product in the combustion gases.
  • the device may adopt a different configuration to that described, provided that the body or housing define a chamber with an entrance and exit orifice, between which two pistons are housed with an intermediate spring, the pistons having axial through holes with the characteristics of the diameters described hereinabove.

Landscapes

  • Engineering & Computer Science (AREA)
  • Chemical & Material Sciences (AREA)
  • Combustion & Propulsion (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Exhaust Silencers (AREA)
  • Fuel-Injection Apparatus (AREA)
  • Combustion Methods Of Internal-Combustion Engines (AREA)
EP01500114A 2000-11-23 2001-04-27 Tuyau pour alimenter en carburant un moteur à combustion interne Withdrawn EP1217201A3 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
ES200002873U ES1047694Y (es) 2000-11-23 2000-11-23 Dispositivo para reducir componentes contaminantes en los gases de escape de motores de combustion.
ES200002873U 2000-11-23

Publications (2)

Publication Number Publication Date
EP1217201A2 true EP1217201A2 (fr) 2002-06-26
EP1217201A3 EP1217201A3 (fr) 2003-07-16

Family

ID=8495833

Family Applications (1)

Application Number Title Priority Date Filing Date
EP01500114A Withdrawn EP1217201A3 (fr) 2000-11-23 2001-04-27 Tuyau pour alimenter en carburant un moteur à combustion interne

Country Status (2)

Country Link
EP (1) EP1217201A3 (fr)
ES (1) ES1047694Y (fr)

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2005052348A1 (fr) * 2003-10-31 2005-06-09 Hydac Technology Gmbh Dispositif pour amortir des coups de belier
WO2014170160A1 (fr) * 2013-04-17 2014-10-23 Robert Bosch Gmbh Dispositif d'amortissement de pulsations pour une pompe haute pression
JP2019210909A (ja) * 2018-06-07 2019-12-12 株式会社セラフィム ディーゼルエンジン用の燃料改質装置

Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3550611A (en) * 1967-10-17 1970-12-29 Danfoss As Unitary combination of pressure-responsive flow control unidirectional valves for hydraulic systems
US4699171A (en) * 1986-12-19 1987-10-13 Sundstrand Corporation Multiple port relief valve
US4986404A (en) * 1988-12-15 1991-01-22 Kabushiki Kaisha Daikin Seisakusho Hydraulic clutch releasing means
JPH10311267A (ja) * 1997-05-12 1998-11-24 Denso Corp 燃料圧力脈動減衰装置
EP0995902A2 (fr) * 1998-10-22 2000-04-26 Nippon Soken, Inc. Système d'alimentation en carburant pour amortir des variations de pression de carburant et procédé pour sa conception

Patent Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3550611A (en) * 1967-10-17 1970-12-29 Danfoss As Unitary combination of pressure-responsive flow control unidirectional valves for hydraulic systems
US4699171A (en) * 1986-12-19 1987-10-13 Sundstrand Corporation Multiple port relief valve
US4986404A (en) * 1988-12-15 1991-01-22 Kabushiki Kaisha Daikin Seisakusho Hydraulic clutch releasing means
JPH10311267A (ja) * 1997-05-12 1998-11-24 Denso Corp 燃料圧力脈動減衰装置
EP0995902A2 (fr) * 1998-10-22 2000-04-26 Nippon Soken, Inc. Système d'alimentation en carburant pour amortir des variations de pression de carburant et procédé pour sa conception

Non-Patent Citations (1)

* Cited by examiner, † Cited by third party
Title
PATENT ABSTRACTS OF JAPAN vol. 1999, no. 02, 26 February 1999 (1999-02-26) -& JP 10 311267 A (DENSO CORP), 24 November 1998 (1998-11-24) *

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2005052348A1 (fr) * 2003-10-31 2005-06-09 Hydac Technology Gmbh Dispositif pour amortir des coups de belier
US7308910B2 (en) 2003-10-31 2007-12-18 Hydac Technology Gmbh Device for damping pressure surges
WO2014170160A1 (fr) * 2013-04-17 2014-10-23 Robert Bosch Gmbh Dispositif d'amortissement de pulsations pour une pompe haute pression
JP2019210909A (ja) * 2018-06-07 2019-12-12 株式会社セラフィム ディーゼルエンジン用の燃料改質装置

Also Published As

Publication number Publication date
ES1047694U (es) 2001-05-01
EP1217201A3 (fr) 2003-07-16
ES1047694Y (es) 2001-09-16

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