EP0461211A1 - Kraftstoffeinspritzpumpe. - Google Patents
Kraftstoffeinspritzpumpe.Info
- Publication number
- EP0461211A1 EP0461211A1 EP19900916701 EP90916701A EP0461211A1 EP 0461211 A1 EP0461211 A1 EP 0461211A1 EP 19900916701 EP19900916701 EP 19900916701 EP 90916701 A EP90916701 A EP 90916701A EP 0461211 A1 EP0461211 A1 EP 0461211A1
- Authority
- EP
- European Patent Office
- Prior art keywords
- recesses
- regulator
- sleeve
- cross
- pump
- 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
- 238000002347 injection Methods 0.000 title claims abstract description 48
- 239000007924 injection Substances 0.000 title claims abstract description 48
- 239000000446 fuel Substances 0.000 title claims abstract description 32
- 238000006073 displacement reaction Methods 0.000 claims description 21
- 238000002485 combustion reaction Methods 0.000 claims description 8
- 230000004323 axial length Effects 0.000 claims description 6
- 230000001419 dependent effect Effects 0.000 claims description 3
- 239000007921 spray Substances 0.000 claims description 2
- 230000000149 penetrating effect Effects 0.000 claims 2
- 230000003247 decreasing effect Effects 0.000 claims 1
- 230000007423 decrease Effects 0.000 abstract description 2
- 238000011161 development Methods 0.000 description 4
- 230000018109 developmental process Effects 0.000 description 4
- 210000000078 claw Anatomy 0.000 description 3
- 238000010586 diagram Methods 0.000 description 3
- 239000002828 fuel tank Substances 0.000 description 2
- 230000008878 coupling Effects 0.000 description 1
- 238000010168 coupling process Methods 0.000 description 1
- 238000005859 coupling reaction Methods 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 230000012447 hatching Effects 0.000 description 1
- 238000012805 post-processing Methods 0.000 description 1
- 238000002360 preparation method Methods 0.000 description 1
- 238000012545 processing Methods 0.000 description 1
- 238000005096 rolling process Methods 0.000 description 1
- 238000005507 spraying Methods 0.000 description 1
Classifications
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F02—COMBUSTION ENGINES; HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
- F02D—CONTROLLING COMBUSTION ENGINES
- F02D1/00—Controlling fuel-injection pumps, e.g. of high pressure injection type
- F02D1/16—Adjustment of injection timing
- F02D1/18—Adjustment of injection timing with non-mechanical means for transmitting control impulse; with amplification of control impulse
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F02—COMBUSTION ENGINES; HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
- F02D—CONTROLLING COMBUSTION ENGINES
- F02D1/00—Controlling fuel-injection pumps, e.g. of high pressure injection type
- F02D1/16—Adjustment of injection timing
- F02D1/18—Adjustment of injection timing with non-mechanical means for transmitting control impulse; with amplification of control impulse
- F02D1/183—Adjustment of injection timing with non-mechanical means for transmitting control impulse; with amplification of control impulse hydraulic
-
- 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
- F02M41/00—Fuel-injection apparatus with two or more injectors fed from a common pressure-source sequentially by means of a distributor
- F02M41/08—Fuel-injection apparatus with two or more injectors fed from a common pressure-source sequentially by means of a distributor the distributor and pumping elements being combined
- F02M41/10—Fuel-injection apparatus with two or more injectors fed from a common pressure-source sequentially by means of a distributor the distributor and pumping elements being combined pump pistons acting as the distributor
- F02M41/12—Fuel-injection apparatus with two or more injectors fed from a common pressure-source sequentially by means of a distributor the distributor and pumping elements being combined pump pistons acting as the distributor the pistons rotating to act as the distributor
- F02M41/123—Fuel-injection apparatus with two or more injectors fed from a common pressure-source sequentially by means of a distributor the distributor and pumping elements being combined pump pistons acting as the distributor the pistons rotating to act as the distributor characterised by means for varying fuel delivery or injection timing
- F02M41/125—Variably-timed valves controlling fuel passages
- F02M41/126—Variably-timed valves controlling fuel passages valves being mechanically or electrically adjustable sleeves slidably mounted on rotary piston
-
- 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
- F02M41/00—Fuel-injection apparatus with two or more injectors fed from a common pressure-source sequentially by means of a distributor
- F02M41/08—Fuel-injection apparatus with two or more injectors fed from a common pressure-source sequentially by means of a distributor the distributor and pumping elements being combined
- F02M41/10—Fuel-injection apparatus with two or more injectors fed from a common pressure-source sequentially by means of a distributor the distributor and pumping elements being combined pump pistons acting as the distributor
- F02M41/12—Fuel-injection apparatus with two or more injectors fed from a common pressure-source sequentially by means of a distributor the distributor and pumping elements being combined pump pistons acting as the distributor the pistons rotating to act as the distributor
- F02M41/123—Fuel-injection apparatus with two or more injectors fed from a common pressure-source sequentially by means of a distributor the distributor and pumping elements being combined pump pistons acting as the distributor the pistons rotating to act as the distributor characterised by means for varying fuel delivery or injection timing
- F02M41/128—Varying injection timing by angular adjustment of the face-cam or the rollers support
Definitions
- the invention relates to a fuel injection pump of the distributor type for internal combustion engines of the type defined in the preamble of claim 1.
- the throttle cross section is set depending on the load so that it increases with increasing displacement of the regulator sleeve from the full position to the zero load or idle position.
- Throttle cross section the fuel pressure in the pump interior is increasingly reduced. This reduces the control pressure acting on the injection adjustment piston and the injection adjustment piston of the injection adjuster, which is under the restoring force of a return spring, is pushed back and increasingly adjusts the start of delivery of the distributor piston and thus the start of injection Towards "late”.
- the outflow channel for the outflow of fuel from the pump interior for the purpose of lowering the control pressure runs inside a so-called regulator axis on which the regulator sleeve slides and is connected to a radial bore opening at the periphery of the regulator axis.
- the different throttle cross-sections are set by two radial bores in the regulator sleeve, which are spaced so axially from one another that with increasing displacement of the regulator sleeve, only one and then both bores come into connection with the radial bore of the regulator axis.
- the fuel injection pump according to the invention with the characterizing features of claim 1 has the advantage that, starting from the full load position with increasing relief of the internal combustion engine, the start of injection is adjusted to "late”, but at zero load or idling the start of injection is set to "earlier” again, however not as “early” as the start of spraying at full load. This ensures good fuel preparation and combustion in all load ranges and clean exhaust gas is achieved.
- Embodiment of the invention according to claim 2 has the The advantage that the size and position of the load ranges can be varied relatively easily, even afterwards.
- the post-processing effort required is relatively low.
- these load ranges are fixed and cannot be changed subsequently. However, the design effort is lower here.
- FIG. 1 shows a longitudinal section of a fuel injection pump of the distributor type, shown schematically,
- Fig. 2 a section of a longitudinal section
- Fig. 3 a section of a longitudinal section of the controller sleeve and controller axis according to another
- Embodiment in three different displacement positions of the regulator sleeve Embodiment in three different displacement positions of the regulator sleeve
- FIG. 5 shows a detail and in an enlarged representation of a longitudinal section of the controller axis with associated processing of the jacket of the controller sleeve according to a third exemplary embodiment in three different ways Displacement positions of the regulator sleeve,
- Fig. 6 is a diagram of the control pressure curve p i in
- Fig. 7 is a diagram of the course of the control pressure p i in
- a pump piston 11 also serving as a distributor is replaced by a
- Drive shaft 12 is set in a reciprocating and simultaneously rotating movement by means of a cam gear 13. With each pressure stroke of the pump piston 11, fuel is conveyed from a pump working chamber 14 via a longitudinal distribution groove 15 to one of several pressure channels 16, which are arranged around the pump piston 11 at uniform angular intervals and each lead to a combustion chamber (not shown) of an internal combustion engine.
- the pump working chamber 14 is supplied with fuel via a suction channel 17 from a fuel-filled pump interior 18 present in the housing 10 of the fuel injection pump, in that the suction channel 17 is opened by control grooves 19 provided in the pump piston 11 during the suction stroke of the pump piston 11.
- the number of tax slots 19 corresponds to the number of pressure channels 16 and thus the number of pressure strokes carried out per revolution of the pump piston 11.
- a magnetic valve 20 is arranged in the suction channel 17 and blocks the suction channel 17 in order to end the injection and to shut off the internal combustion engine.
- the amount of fuel injected per stroke of the pump piston 11 into one of the pressure channels 16 is determined by the axial position of an injection quantity control member or control slide 21 that is axially displaceable on the pump piston 11. Its axial position is determined by a speed controller 22 and an arbitrarily actuated adjusting lever 23, evaluating the respective speed and load.
- the load is determined by the position of the accelerator pedal of the motor vehicle in conjunction with its driving resistance.
- the pump interior 18 is supplied with fuel by a feed pump 24, which is driven by the drive shaft 12 and sucks fuel from a fuel tank 25 via a suction line 26.
- the output pressure of the feed pump 24 and thus the pressure p i in the pump interior 18 is controlled by a pressure control valve 27, this pressure increasing with increasing speed of the drive shaft 12 in accordance with a desired function.
- Both the cam gear 13 and the speed controller 12 are arranged in the pump interior 18 and are thus acted upon on all sides by the pressure P i in the pump interior 18, hereinafter referred to as control pressure, and are lubricated by the fuel.
- the cam gear 13 has a roller ring 28 which carries rollers 28 and is rotatably mounted in the housing by a certain angle and is coupled in a rotationally locking manner to an injection adjustment piston 32 of an injection adjuster 30 via an adjustment bolt 31.
- 1 is the Injection plunger 32 shown rotated by 90 ° in the drawing plane.
- the injection adjustment piston 32 which is axially displaceable tangentially to the roller ring 29, is acted upon in one adjustment direction by a return spring 33 and in the other adjustment direction by the control pressure of the pump interior 18 prevailing in a control chamber 34. Control chamber 34 and pump interior 18 are connected to one another via a throttle channel 35 present in the injection-adjusting piston 32.
- Pump piston 11 can perform a lifting movement during rotation, independently of the drive shaft 12.
- a lifting or end cam disk 36 Arranged on the pump piston 11 is a lifting or end cam disk 36, which runs with its end cam bearing surface on the rollers 28, the number of end cams in turn corresponding to the number of pressure channels 16.
- the roller ring 19 is now rotated such that the end cams of the end cam disk 36 engage the rollers 28 earlier in relation to the rotational position of the drive shaft 12, as a result of which the start of the stroke of the pump piston 11 and thus the start of delivery of the fuel and the start of injection SB takes place earlier in relation to the rotational position of the drive shaft 12. So the higher the control pressure in the pump interior 18 and there on
- the speed controller 22 is driven via a gearwheel 37, which is firmly connected to the drive shaft 12 and drives a speed sensor 38 with flyweights 39.
- the flyweights 39 engage on one side of a regulator sleeve 40 which is axially displaceable on a regulator axis 41. With its free end, the regulator sleeve 40 rests on a control lever system 43 which is loaded by a control spring 42 and which actuates the control slide 21.
- the control lever system 43 is pivotally mounted on an axis 44.
- the bias of the control spring 42 can be changed by the adjusting lever 23, in such a way that increasing the adjusting lever 23 in the direction
- a relief throttle 45 in the pump interior 18 is controlled by the control sleeve 40 in such a way that, depending on the load-dependent displacement position of the control sleeve 40, a different throttle cross section to one in the Regulator axis 41 designed as an axial bore drain channel 46 is released.
- This throttled opening of the discharge channel 46 allows the pressure in the pump interior 18 to be reduced, as a result of which the injection adjusting piston 32 moves back under the return spring 33 and, by rotating the roller ring 29, adjusts the start of delivery or start of injection SB in the "late" direction.
- the drain channel 46 is connected to the fuel tank 25 via a drain line 47.
- the regulator sleeve 40 with regulator axis 41 is shown enlarged in FIG. 2.
- the hollow-shaped regulator sleeve 40 which is closed at the end with a closure piece 51, carries the relief throttle 45, which releases a more or less large throttle cross-section to the drainage channel 46 by moving the regulator sleeve 40 on the regulator axis 41, depending on the shift position of the regulator sleeve 40.
- Three striking shift positions of the control sleeve are indicated in Fig. 2 by a dashed line and marked with VL (full load), TL (part load) and with NL (zero load or idling).
- the relief throttle 45 has two radial bores 48, 49, which are introduced in the regulator sleeve 40 at an axial distance and have widely differing bore diameters, which interact with a continuous transverse bore 50 in the regulator axis 41.
- the transverse bore 50 is connected via an axial blind bore 52, which is closed on the end face of the regulator axis 41 by a plug 53, and via a radial tap bore 54 opening into the blind bore 52 with a first annular groove 55 in the regulator axis 41.
- a second annular groove 56 is introduced into the controller axis 41 at an axial distance from the first annular groove 55 and is connected to the outflow channel 46 via a second tap hole 57.
- a connecting groove 58 in the regulator sleeve 40 interacts with the two ring grooves 55, 56.
- the connecting groove 58 is dimensioned and arranged in such a way that it separates the two annular grooves 55, 56 in the full load position (VL) of the control sleeve 40 and connects them in the other displacement positions of the control sleeve 40 (TL and NL).
- VL full load position
- Cross bore 50 in the controller axis 41 are assigned to each other so that in the partial load position (TL) of the regulator sleeve 40 the larger diameter radial bore 48 and in the zero load position (NL) the smaller diameter radial bore 49 with the cross bore 50 in connection.
- Partial load flows over the large cross-section of the radial bore 40, a relatively large amount of fuel into the discharge channel 46, so that the pressure in the pump interior 18 is reduced relatively far.
- the displacement path of the injection adjuster piston 32 is correspondingly large under the effect of Return spring 33, and by the rotation of the roller ring 29 caused thereby, the start of injection is shifted far to "late”.
- the throttle cross section is throttled to the smaller bore cross section of the radial bore 49, so that much less
- the injection adjustment piston 32 is displaced against the force of its return spring 33 and adjusts the start of injection again in the "early" direction.
- the pressure in the pump interior 18 will not increase as much as in the full-load position (VL) of the regulator sleeve 40, in which the connecting groove 58 connects the radial bores 48, 49 to the drainage channel 46 separates.
- VL full-load position
- Pump interior 18 is shown in FIG. 6 as a function of the displacement s m of the regulator sleeve 40. It is very high at full load (VL), decreases very strongly in the part-load range and increases in the no-load range (NL) to about half the pressure from the full-load range.
- This diagram also corresponds essentially to the course of the injection time (start of injection SB) as a function of the load (L), the start of injection (SB), starting from the abscissa, moving from "late” to "early”.
- FIG. 3a shows the regulator sleeve 40 in the full load position (VL), FIG. 3b in the partial load position (TL) and FIG. 3c in the zero load position (NL).
- Fig. 4 shows the development of the jacket of the regulator sleeve 40. Die
- Relief throttle 45 has a plurality of recesses 61, 62, which are made in the regulator sleeve 40 and completely penetrate the sleeve wall and which are adjacent to one another in two cross-sectional planes in the circumferential direction. All recesses 61, 62 have the same cross section, however, the number of recesses 61 in one cross-sectional plane is twice as large as the number of recesses 62 in the other cross-sectional plane.
- the controller axis 41 carries an annular groove 63 connected to the drain channel 46 via a transverse bore 60, the axial groove width of which is dimensioned so large that it can cover the recesses 61, 62 in both cross-sectional planes. Recesses
- the relief throttle 45 connects the pump interior 18 with the
- the course of the control pressure p i in the pump interior 18 during the described displacement of the regulator sleeve 40 is shown in FIG. 7 as a function of its displacement path s M.
- their size can also be selected differently.
- FIG. 5 Another embodiment of the relief throttle 45 in the regulator sleeve 40 is illustrated in FIG. 5.
- the controller axis 41 is shown in the lower part of FIG. 5 and the development of the lateral surface of the controller sleeve 40 which is axially displaceable on the controller axis 41 is shown in the upper picture.
- the relative position of the controller sleeve 40 in relation to the controller axis 41 for the full load position is shown in FIG (Fig.5a), for the partial load position (Fig. 5b) and for the zero load position (Fig.
- the relief throttle 45 has a number of recesses 71, 72, which are made in the regulator sleeve 40 and penetrate the sleeve wall completely and extend in the axial direction and lie in the same cross-sectional plane with an end boundary edge. Viewed from the circumferential direction, they are at an arbitrary distance from one another.
- Recesses 71, 72 are divided into two groups, the recesses 71 and 72 having the same cross section in each group. All of the recesses 71, 72 have seen the same width in the circumferential direction, but the recesses 71 of one group have a larger axial one
- the controller axis 41 carries an annular groove 73, the axial groove width of which is the same size as the axial length of the recesses 72.
- the annular groove 73 is connected to the drain channel 46 via four radial bores 74.
- the recesses 71, 72 and the annular groove 73 are assigned to one another such that the annular groove 73 does not cover any of the recesses 71, 72 in the full load position of the regulator sleeve 40 (FIG. 5a), with all the recesses 71, in the partial load position (FIG. 5b), 72 corresponds and in the zero load position (FIG.
- the axial groove width of the annular groove 73 is equal to the axial length of the shorter recesses 72.
- the groove 73 must be dimensioned equal or smaller in its groove width than the maximum displacement of the regulator sleeve 40 reduced by the axial length of the shorter recesses 72 and by the sum of the required dimensions of the end boundary edges of the shorter recesses 72 from the ring groove 73 at full and partial load position of the regulator sleeve 40.
- the distance dimension here means the additional displacement path of the regulator sleeve 40, in order to ensure reliable coverage of the shorter recesses 72 by the regulator axis 41 after the control edge of the annular groove 73 and the boundary edge of the shorter recesses 72 have been congruent.
- the shorter recesses 72 are opened by the left control edge of the annular groove 73 in FIG. 5 and closed again by the right control edge.
- the longer recesses 71 are opened from the left control edge and, after a displacement path of the regulator sleeve 40, which corresponds to the groove width of the annular groove 73 plus an overlap to be taken into account in the full load position of the regulator sleeve 40, provides a constant control cross section when the regulator sleeve 40 is displaced in the direction of zero load. If the axial length of the shorter recesses 72 is made smaller than the groove width of the annular groove 73, then a wider part-load range TL can be realized. Two versions are possible. In the first embodiment, the shorter recesses 72 with their one end boundary edge do not lie in the same plane with the boundary edges of the longer recesses 71. In this case, the profile of the control pressure p corresponds. in the pump interior 18 the curve drawn in dashed lines in FIG. 7.
- the boundary edges of short and long recesses 71, 72 lie in the same cross-sectional plane.
- the course of the control pressure p i as a function of the displacement path s M of the regulator sleeve 40 corresponds to the line drawn in broken lines in FIG. 7.
Landscapes
- Engineering & Computer Science (AREA)
- Chemical & Material Sciences (AREA)
- Combustion & Propulsion (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Fuel-Injection Apparatus (AREA)
- High-Pressure Fuel Injection Pump Control (AREA)
Description
Claims
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DE3943297 | 1989-12-29 | ||
DE3943297A DE3943297A1 (de) | 1989-12-29 | 1989-12-29 | Kraftstoffeinspritzpumpe |
Publications (2)
Publication Number | Publication Date |
---|---|
EP0461211A1 true EP0461211A1 (de) | 1991-12-18 |
EP0461211B1 EP0461211B1 (de) | 1993-10-27 |
Family
ID=6396607
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
EP90916701A Expired - Lifetime EP0461211B1 (de) | 1989-12-29 | 1990-11-24 | Kraftstoffeinspritzpumpe |
Country Status (8)
Country | Link |
---|---|
US (1) | US5161509A (de) |
EP (1) | EP0461211B1 (de) |
JP (1) | JP2801399B2 (de) |
KR (1) | KR0155561B1 (de) |
BR (1) | BR9007176A (de) |
DE (2) | DE3943297A1 (de) |
ES (1) | ES2046799T3 (de) |
WO (1) | WO1991010055A1 (de) |
Families Citing this family (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPH0494426A (ja) * | 1990-08-08 | 1992-03-26 | Zexel Corp | 分配型燃料噴射ポンプのロードタイマ |
DE19713868A1 (de) * | 1997-04-04 | 1998-10-08 | Bosch Gmbh Robert | Kraftstoffeinspritzpumpe für Brennkraftmaschinen |
JP2004116475A (ja) * | 2002-09-27 | 2004-04-15 | Denso Corp | 燃料噴射ポンプ |
DE102015016925A1 (de) | 2015-12-24 | 2017-06-29 | Audi Ag | Kraftstoffpumpe |
Family Cites Families (11)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS551418A (en) * | 1978-06-16 | 1980-01-08 | Diesel Kiki Co Ltd | Injection timing device for distribution-type fuel injection pump |
JPS595162Y2 (ja) * | 1979-04-19 | 1984-02-16 | 株式会社ボッシュオートモーティブ システム | 分配型燃料噴射ポンプのロ−ドタイマ |
JPS6131157Y2 (de) * | 1981-03-12 | 1986-09-10 | ||
DE3135234A1 (de) * | 1981-09-05 | 1983-03-17 | Robert Bosch Gmbh, 7000 Stuttgart | Einrichtung zur lastabhaengigen betaetigung eines stellorgans einer brennkraftmaschine |
DE3135477A1 (de) * | 1981-09-08 | 1983-03-17 | Robert Bosch Gmbh, 7000 Stuttgart | Kraftstoffeinspritzpumpe fuer brennkraftmaschinen |
DE3242108A1 (de) * | 1982-11-13 | 1984-05-17 | Robert Bosch Gmbh, 7000 Stuttgart | Verteilereinspritzpumpe fuer brennkraftmaschinen |
DE3500341A1 (de) * | 1984-07-13 | 1986-01-16 | Robert Bosch Gmbh, 7000 Stuttgart | Drehzahlregler fuer kraftstoffeinspritzpumpen |
GB8513282D0 (en) * | 1985-05-28 | 1985-07-03 | Lucas Ind Plc | Fuel injection pumping apparatus |
JPS63138128A (ja) * | 1986-11-28 | 1988-06-10 | Mazda Motor Corp | デイ−ゼルエンジンの燃料噴射時期制御装置 |
DE3744618C1 (en) * | 1987-12-31 | 1989-05-18 | Bosch Gmbh Robert | Fuel-injection pump for internal-combustion engines |
DE3900346A1 (de) * | 1989-01-07 | 1990-07-12 | Bosch Gmbh Robert | Kraftstoffeinspritzpumpe fuer brennkraftmaschinen |
-
1989
- 1989-12-29 DE DE3943297A patent/DE3943297A1/de not_active Withdrawn
-
1990
- 1990-11-24 KR KR1019910700952A patent/KR0155561B1/ko not_active IP Right Cessation
- 1990-11-24 DE DE90916701T patent/DE59003259D1/de not_active Expired - Fee Related
- 1990-11-24 WO PCT/DE1990/000906 patent/WO1991010055A1/de active IP Right Grant
- 1990-11-24 US US07/721,660 patent/US5161509A/en not_active Expired - Lifetime
- 1990-11-24 BR BR909007176A patent/BR9007176A/pt not_active IP Right Cessation
- 1990-11-24 EP EP90916701A patent/EP0461211B1/de not_active Expired - Lifetime
- 1990-11-24 JP JP2515312A patent/JP2801399B2/ja not_active Expired - Fee Related
- 1990-11-24 ES ES199090916701T patent/ES2046799T3/es not_active Expired - Lifetime
Non-Patent Citations (1)
Title |
---|
See references of WO9110055A1 * |
Also Published As
Publication number | Publication date |
---|---|
ES2046799T3 (es) | 1994-02-01 |
DE3943297A1 (de) | 1991-07-04 |
DE59003259D1 (de) | 1993-12-02 |
BR9007176A (pt) | 1991-11-26 |
EP0461211B1 (de) | 1993-10-27 |
KR0155561B1 (ko) | 1998-11-16 |
US5161509A (en) | 1992-11-10 |
JP2801399B2 (ja) | 1998-09-21 |
KR920701630A (ko) | 1992-08-12 |
WO1991010055A1 (de) | 1991-07-11 |
JPH04504749A (ja) | 1992-08-20 |
Similar Documents
Publication | Publication Date | Title |
---|---|---|
DE1931039A1 (de) | Kraftstoffeinspritzpumpe fuer Brennkraftmaschinen | |
EP0150471B1 (de) | Kraftstoffeinspritzpumpe | |
DE2638736A1 (de) | Kraftstoffeinspritzpumpe fuer brennkraftmaschinen | |
DE3617732C2 (de) | ||
DE1947529C3 (de) | Kraftstoff einspritzpumpe für Brennkraftmaschinen | |
DE2355347A1 (de) | Kraftstoffeinspritzpumpe fuer brennkraftmaschinen | |
DE2033491C2 (de) | Kraftstoffeinspritzpumpe für Brennkraftmaschinen | |
DE2037449C3 (de) | Kraftstoffeinspritzpumpe für Brennkraftmaschinen | |
EP0273225B1 (de) | Kraftstoffeinspritzpumpe für Brennkraftmaschinen | |
DE2727929A1 (de) | Kraftstoffeinspritzvorrichtung | |
EP0166995A2 (de) | Kraftstoffeinspritzpumpe für Brennkraftmaschinen | |
DE2522374A1 (de) | Kraftstoffeinspritzpumpe fuer brennkraftmaschinen | |
DE2151884A1 (de) | Kraftstoffeinspritzpumpe fuer brennkraftmaschinen | |
EP0461211B1 (de) | Kraftstoffeinspritzpumpe | |
EP0168586B1 (de) | Kraftstoffeinspritzpumpe | |
DE3006925C2 (de) | Kraftstoffeinspritzpumpe mit Mitteln zur Verstellung des Einspritzbeginns bei Verbrennungsmotoren | |
DE2937222A1 (de) | Kraftstoff-einspritzpumpvorrichtung | |
DE2644698C2 (de) | Kraftstoffeinspritzpumpe für eine Brennkraftmaschine | |
EP0341243B1 (de) | Kraftstoffeinspritzpumpe für brennkraftmaschinen | |
EP0543805A1 (de) | Kraftstoffeinspritzpumpe für brennkraftmaschinen. | |
DE3644148A1 (de) | Kraftstoffeinspritzpumpe fuer brennkraftmaschinen | |
DE2448693C2 (de) | Drehzahlregler für eine Verteilereinspritzpumpe | |
DE3032933C2 (de) | ||
DE3615919A1 (de) | Kraftstoffeinspritzpumpe fuer eine brennkraftmaschine | |
DE3744618C1 (en) | Fuel-injection pump for internal-combustion engines |
Legal Events
Date | Code | Title | Description |
---|---|---|---|
PUAI | Public reference made under article 153(3) epc to a published international application that has entered the european phase |
Free format text: ORIGINAL CODE: 0009012 |
|
17P | Request for examination filed |
Effective date: 19910716 |
|
AK | Designated contracting states |
Kind code of ref document: A1 Designated state(s): DE ES FR GB IT |
|
RAP3 | Party data changed (applicant data changed or rights of an application transferred) |
Owner name: ROBERT BOSCH GMBH |
|
17Q | First examination report despatched |
Effective date: 19920929 |
|
GRAA | (expected) grant |
Free format text: ORIGINAL CODE: 0009210 |
|
AK | Designated contracting states |
Kind code of ref document: B1 Designated state(s): DE ES FR GB IT |
|
ET | Fr: translation filed | ||
REF | Corresponds to: |
Ref document number: 59003259 Country of ref document: DE Date of ref document: 19931202 |
|
GBT | Gb: translation of ep patent filed (gb section 77(6)(a)/1977) |
Effective date: 19931109 |
|
ITF | It: translation for a ep patent filed | ||
REG | Reference to a national code |
Ref country code: ES Ref legal event code: FG2A Ref document number: 2046799 Country of ref document: ES Kind code of ref document: T3 |
|
PLBE | No opposition filed within time limit |
Free format text: ORIGINAL CODE: 0009261 |
|
STAA | Information on the status of an ep patent application or granted ep patent |
Free format text: STATUS: NO OPPOSITION FILED WITHIN TIME LIMIT |
|
26N | No opposition filed | ||
REG | Reference to a national code |
Ref country code: GB Ref legal event code: IF02 |
|
PGFP | Annual fee paid to national office [announced via postgrant information from national office to epo] |
Ref country code: ES Payment date: 20081121 Year of fee payment: 19 |
|
PGFP | Annual fee paid to national office [announced via postgrant information from national office to epo] |
Ref country code: IT Payment date: 20081126 Year of fee payment: 19 |
|
PGFP | Annual fee paid to national office [announced via postgrant information from national office to epo] |
Ref country code: FR Payment date: 20081118 Year of fee payment: 19 |
|
PGFP | Annual fee paid to national office [announced via postgrant information from national office to epo] |
Ref country code: DE Payment date: 20090126 Year of fee payment: 19 |
|
PGFP | Annual fee paid to national office [announced via postgrant information from national office to epo] |
Ref country code: GB Payment date: 20081121 Year of fee payment: 19 |
|
GBPC | Gb: european patent ceased through non-payment of renewal fee |
Effective date: 20091124 |
|
REG | Reference to a national code |
Ref country code: FR Ref legal event code: ST Effective date: 20100730 |
|
PG25 | Lapsed in a contracting state [announced via postgrant information from national office to epo] |
Ref country code: FR Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES Effective date: 20091130 |
|
PG25 | Lapsed in a contracting state [announced via postgrant information from national office to epo] |
Ref country code: DE Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES Effective date: 20100601 |
|
PG25 | Lapsed in a contracting state [announced via postgrant information from national office to epo] |
Ref country code: GB Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES Effective date: 20091124 |
|
PG25 | Lapsed in a contracting state [announced via postgrant information from national office to epo] |
Ref country code: IT Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES Effective date: 20091124 |
|
REG | Reference to a national code |
Ref country code: ES Ref legal event code: FD2A Effective date: 20110407 |
|
PG25 | Lapsed in a contracting state [announced via postgrant information from national office to epo] |
Ref country code: ES Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES Effective date: 20110324 |
|
PG25 | Lapsed in a contracting state [announced via postgrant information from national office to epo] |
Ref country code: ES Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES Effective date: 20091125 |