EP0817914A1 - Pressure valve - Google Patents
Pressure valveInfo
- Publication number
- EP0817914A1 EP0817914A1 EP96945711A EP96945711A EP0817914A1 EP 0817914 A1 EP0817914 A1 EP 0817914A1 EP 96945711 A EP96945711 A EP 96945711A EP 96945711 A EP96945711 A EP 96945711A EP 0817914 A1 EP0817914 A1 EP 0817914A1
- Authority
- EP
- European Patent Office
- Prior art keywords
- pressure
- valve
- valve member
- control
- pressure valve
- 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
Links
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
- F02M59/00—Pumps specially adapted for fuel-injection and not provided for in groups F02M39/00 -F02M57/00, e.g. rotary cylinder-block type of pumps
- F02M59/44—Details, components parts, or accessories not provided for in, or of interest apart from, the apparatus of groups F02M59/02 - F02M59/42; Pumps having transducers, e.g. to measure displacement of pump rack or piston
- F02M59/46—Valves
- F02M59/462—Delivery valves
-
- 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
- F02M59/00—Pumps specially adapted for fuel-injection and not provided for in groups F02M39/00 -F02M57/00, e.g. rotary cylinder-block type of pumps
- F02M59/44—Details, components parts, or accessories not provided for in, or of interest apart from, the apparatus of groups F02M59/02 - F02M59/42; Pumps having transducers, e.g. to measure displacement of pump rack or piston
- F02M59/46—Valves
Definitions
- the invention is based on a pressure valve according to the preamble of claim 1.
- pressure valves known from DE 40 37 465 AI are used in delivery lines between a high-pressure chamber having a high-pressure chamber and an injection point, preferably between an injection pump and an injection valve of an internal combustion engine.
- the pressure valve should ensure that the medium to be pumped, e.g. Fuel, reaches the injection point, or when the injection ends, the pressure supply to the injection point is interrupted when the pressure drops below the necessary injection pressure.
- the medium to be pumped e.g. Fuel
- the known pressure valve has a valve member which is axially displaceable in a pressure or pipe socket and which is held by a valve spring with its valve sealing surface in contact with a stationary valve seat.
- the opening movement of the valve member takes place through the high fuel pressure built up in the high-pressure chamber, there in the pump work chamber of an injection pump, which lifts the valve member against the restoring force of the valve spring from the valve seat, so that a flow cross-section at the pressure valve is opened, via which the fuel reaches the injection valve.
- a backflow throttle bore is also provided in the valve member, which is formed at least by a longitudinal bore.
- the known pressure valve has the disadvantage that the timing of the opening of the maximum flow cross-section at the pressure valve cannot be set precisely and reproducibly due to the changing hydraulic conditions, so that the injection timing at the injection point cannot be determined precisely enough, which the Quality of the mixture preparation and combustion in the combustion chamber of an internal combustion engine to be supplied can significantly affect.
- the 2-stage opening stroke movement of the valve member is controlled in a simple manner via
- the throttle bore 31 in the valve member 15 is cut by a control bore 33 forming a control recess in the valve member 15, which is designed as a transverse bore in the exemplary embodiment.
- the control bore 33 the edges of which in the axial direction toward the valve member 15 form control edges at the two outlet openings, acts to control the stroke movement of the valve member 15
Abstract
Description
Claims
Applications Claiming Priority (3)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DE19602906A DE19602906A1 (en) | 1996-01-27 | 1996-01-27 | Pressure valve |
DE19602906 | 1996-01-27 | ||
PCT/DE1996/002116 WO1997027396A1 (en) | 1996-01-27 | 1996-11-07 | Pressure valve |
Publications (2)
Publication Number | Publication Date |
---|---|
EP0817914A1 true EP0817914A1 (en) | 1998-01-14 |
EP0817914B1 EP0817914B1 (en) | 2002-02-20 |
Family
ID=7783834
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
EP96945711A Expired - Lifetime EP0817914B1 (en) | 1996-01-27 | 1996-11-07 | Pressure valve |
Country Status (7)
Country | Link |
---|---|
EP (1) | EP0817914B1 (en) |
JP (1) | JP2000500838A (en) |
KR (1) | KR100300508B1 (en) |
CN (1) | CN1075165C (en) |
BR (1) | BR9607806A (en) |
DE (2) | DE19602906A1 (en) |
WO (1) | WO1997027396A1 (en) |
Families Citing this family (6)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
FI114501B (en) * | 2001-06-27 | 2004-10-29 | Waertsilae Finland Oy | Power limit valve for fuel system |
FI117805B (en) | 2003-06-17 | 2007-02-28 | Waertsilae Finland Oy | Arrangement in the fuel supply system |
US8291781B2 (en) | 2007-12-21 | 2012-10-23 | Schlumberger Technology Corporation | System and methods for actuating reversibly expandable structures |
US8733453B2 (en) | 2007-12-21 | 2014-05-27 | Schlumberger Technology Corporation | Expandable structure for deployment in a well |
CN102536463A (en) * | 2010-12-22 | 2012-07-04 | 中国航空工业集团公司沈阳发动机设计研究所 | Cutoff valve |
CN103437930B (en) * | 2013-08-13 | 2018-05-29 | 南京威孚金宁有限公司 | The control method of isobaric valve performance |
Family Cites Families (5)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
GB1060181A (en) * | 1965-01-11 | 1967-03-01 | Cav Ltd | Liquid fuel supply systems for internal combustion engines |
FR1543884A (en) * | 1966-11-11 | 1968-10-25 | Cav Ltd | Fuel supply device for internal combustion engine |
JPS61294166A (en) * | 1985-06-21 | 1986-12-24 | Yanmar Diesel Engine Co Ltd | Fuel injection pump for internal-combustion engine |
DE4037465A1 (en) * | 1990-10-31 | 1992-05-07 | Daimler Benz Ag | Fuel injection pump for IC engine - has constantly open throttle bore in valve piston |
JPH07305668A (en) * | 1994-05-11 | 1995-11-21 | Nippondenso Co Ltd | Delivery valve |
-
1996
- 1996-01-27 DE DE19602906A patent/DE19602906A1/en not_active Withdrawn
- 1996-11-07 JP JP9526398A patent/JP2000500838A/en not_active Abandoned
- 1996-11-07 WO PCT/DE1996/002116 patent/WO1997027396A1/en active IP Right Grant
- 1996-11-07 CN CN96192762A patent/CN1075165C/en not_active Expired - Fee Related
- 1996-11-07 BR BR9607806A patent/BR9607806A/en not_active IP Right Cessation
- 1996-11-07 DE DE59608762T patent/DE59608762D1/en not_active Expired - Fee Related
- 1996-11-07 KR KR1019970706127A patent/KR100300508B1/en not_active IP Right Cessation
- 1996-11-07 EP EP96945711A patent/EP0817914B1/en not_active Expired - Lifetime
Non-Patent Citations (1)
Title |
---|
See references of WO9727396A1 * |
Also Published As
Publication number | Publication date |
---|---|
DE19602906A1 (en) | 1997-07-31 |
DE59608762D1 (en) | 2002-03-28 |
EP0817914B1 (en) | 2002-02-20 |
BR9607806A (en) | 1998-07-07 |
CN1075165C (en) | 2001-11-21 |
KR19980702720A (en) | 1998-08-05 |
JP2000500838A (en) | 2000-01-25 |
WO1997027396A1 (en) | 1997-07-31 |
KR100300508B1 (en) | 2002-06-26 |
CN1179197A (en) | 1998-04-15 |
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