EP0597250B1 - Fuel injection pump - Google Patents
Fuel injection pump Download PDFInfo
- Publication number
- EP0597250B1 EP0597250B1 EP93116229A EP93116229A EP0597250B1 EP 0597250 B1 EP0597250 B1 EP 0597250B1 EP 93116229 A EP93116229 A EP 93116229A EP 93116229 A EP93116229 A EP 93116229A EP 0597250 B1 EP0597250 B1 EP 0597250B1
- Authority
- EP
- European Patent Office
- Prior art keywords
- cam
- fuel injection
- annular part
- injection pump
- connecting member
- 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
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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
- 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
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- 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
- F02M41/14—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 rotary distributor supporting pump pistons
- F02M41/1405—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 rotary distributor supporting pump pistons pistons being disposed radially with respect to rotation axis
- F02M41/1411—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 rotary distributor supporting pump pistons pistons being disposed radially with respect to rotation axis characterised by means for varying fuel delivery or injection timing
- F02M41/1416—Devices specially adapted for angular adjustment of annular cam
Definitions
- the invention is based on a fuel injection pump for internal combustion engines according to the preamble of claim 1.
- a fuel injection pump is known from DE-A-2 839 014.
- Another fuel injection pump known from EP-A-0039304 is constructed in the manner of a distributor injection pump, in which pump pistons which are arranged radially and are supported in a rotatingly driven distributor and which are supported by roller shoes on a cam track which rest on an annular element, which is essentially is fixed but rotatably mounted in the pump housing, is arranged.
- the inward-facing cams cause the pump pistons to move back and forth, alternating suction and delivery strokes, so that fuel under high pressure is supplied to one of several injection lines depending on the positions of the distributor.
- the cam ring is rotatably arranged to adjust the time at which a respective high-pressure delivery stroke of the pump piston begins.
- it has a radially screwed-in connecting element, which has a ball head at the outer end and engages with this in an actuating piston of a spray adjuster.
- the actuating piston is operated by a hydraulic Control fluid adjusts against the force of a return spring and thus changes the rotational position of the cam ring and thus the start of high-pressure delivery of the pump pistons or the start of injection of the fuel injection.
- the connecting member is therefore screwed into a threaded bore arranged in a radially lying cam ring.
- a threaded bore arranged in a radially lying cam ring.
- Such a bore is of great disadvantage in the case of a very heavily loaded part such as the cam ring, which on the one hand has to be hardened in order to have the necessary wear resistance during operation and on the other hand is notch sensitive due to this hardness.
- the fuel injection pump according to the invention with the characterizing features of claim 1 has the advantage over that the molded connecting member enables a much better introduction of force to the actuating force to be applied to the cam ring and this also applies to the holding force in a specific setting of the cam ring against the twisting forces, that occur due to the running of the rollers on the cams during the delivery stroke of the pump pistons. Furthermore, the connecting member can now be attached to the inside of the cam ring regardless of the position of the cams, since the cam ring wall thickness is no longer influenced, as is the case in the prior art. There is also a simplification for the assembly of the cam ring in connection with the actuator, since the connecting member does not have to be screwed in separately during the assembly because of its relatively small size.
- the connecting member can also be roller-shaped with an axis lying parallel to the axis of the cam ring, which has the advantage that a larger force transmission cross section is available at the point of transition of the connecting part to the cam ring.
- FIG. 1 shows a first embodiment with an axial plan view of the annular part, the cam ring in a first embodiment
- FIG. 2 shows a section perpendicular to the plane of the illustration in FIG. 1 as a plan view of the adjusting part of the cam ring
- FIG. 3 shows a second exemplary embodiment with a modified one Connecting link.
- FIG. 1 shows a cam drive of a fuel injection pump of the distributor pump type in a partial section through the injection pump, which serves to generate the movement of pump pistons of the fuel injection pump, which is not shown in any more detail.
- This injection pump is constructed in the manner of a distributor radial piston pump, of which the section through a distributor 1 is shown in FIG. 1.
- This is driven in rotation by a drive shaft, not shown, and has radial bores 2, which act as pump cylinders Guide pump piston 3.
- a roller tappet 5 is guided in a bore 4 with a larger diameter, which adjoins the bores 2 radially outwards, with a roller 6 which runs on a cam track 7 of a cam ring 8 when the distributor 1 rotates.
- the pump pistons limit a pump work space, not shown, which adjoins the axis of the distributor and which leads via an axial pressure bore 9 to the distributor point (not shown) of the distributor, at which, depending on the rotational position of the distributor, one of several outgoing injection lines distributed around the circumference of the distributor dissipate. These supply the corresponding injection valves.
- four pump pistons are provided in the distributor in a uniformly distributed manner, which together promote the pressure bore 9.
- Corresponding cams 11 facing inwards are provided on the cam track 4.
- the cam track is on a ring with the essential square cross section. While it is sufficient to demand the fuel and to drive the pump pistons that the cam ring is stationary, whereby it is guided in a corresponding cylindrical receptacle of the pump housing (not shown further), it is rotated by adjusting the start of delivery of the pump pistons. Depending on the rotational position of the cam ring, a pressure stroke of the pump pistons will take place sooner or later, thus changing the possible start of fuel injection.
- the cam ring according to the invention now has a connecting member 12 on its outer circumference, which has the shape of a roller which is fitted in one piece onto the cylindrical outer surface of the cam ring. Because of the one-piece design, the connecting member 12 is cylindrical only over part of its outer circumference.
- This roller-shaped connecting member engages in a recess 14 in an adjusting member 16 of an adjusting device 17 for adjusting the cam ring.
- These are the hydraulic injection adjusters which are common in distributor fuel injection pumps and consist of a piston, said adjusting member 16, which is arranged displaceably in a cylinder 18 , a return spring 19 acting on its one end face and a hydraulic actuating pressure 20 acting on its other side, which is constantly supplied via a feed line 21 from a pressure source 22 (not shown).
- the piston 60 is displaced more or less against the force of the return spring 19 and thus adjusts the rotational position of the cam ring and thus the start of injection.
- this adjustment device also has the task of holding the cam ring in the position once set. Against the restoring forces that are caused due to the running of the rollers 6 on the cam 11 during the pressure stroke of the pump piston.
- FIG. 2 shows the top view of a partial section along the line II / II of FIG. 1.
- the section goes through the axis of the roller-shaped connecting member and shows that this is convex in its longitudinal extent in the outer contour. Alignment errors between actuator 16 and cam ring can thus be compensated for.
- a bearing part 24 is inserted into the recess, which comprises the connecting member over an area which is greater than 180 °. In the bearing pan 25 thus formed, the adjusting member can move easily and there is an optimal transmission of force from the actuator to the cam ring.
- the connecting member 12 is provided with a roller-shaped surface only on the sides of its longitudinal extension parallel to the axis of the cam ring, which surface point in the direction of the adjusting movement of the adjusting member 16.
- the connecting member 12 is in direct contact with the recess 14 of the adjusting member 16.
- the connecting member can of course also be machined and have a spherical head-like end with which it engages in a correspondingly shaped recess analogous to the recess 14 in the adjusting member.
Description
Die Erfindung geht von einer Kraftstoffeinspritzpumpe für Brennkraftmachinen nach der Gattung des Patentanspruchs 1 aus. Eine solche Kraftstoffeinspritzpumpe ist aus der DE-A-2 839 014 bekannt. Eine weitere durch die EP-A-0039304 bekannte Kraftstoffeinspritzpumpe ist in der Art einer Verteilereinspritzpumpe aufgebaut, bei der in einem rotierend angetriebenen Verteiler radial angeordnete Pumpenkolben vorgesehen sind, die sich über Rollenschuhe auf einer Nockenbahn abstützen, die auf einem ringförmigen Element, das im wesentlichen feststehend aber verdrehbar im Pumpengehäue gelagert ist, angeordnet ist. Durch die nach innen weisenden Nocken erfahren die Pumpenkolben eine hin- und hergehende Bewegung, wobei sich Saug- und Förderhübe abwechseln und so Kraftstoff unter Hochdruck je nach Stellungen des Verteilers einer von mehreren Einspritzleitungen zugeführt wird. Zur Verstellung des Zeitpunktes, bei dem ein jeweiliger Hochdruckförderhub der Pumpenkolben beginnt, ist der Nockenring verdrehbar angeordnet. Dazu weist er ein radial eingeschraubtes Verbindungselement auf, das am außen liegenden Ende einen Kugelkopf aufweist und mit diesem in einem Stellkolben eines Spritzverstellers eingreift. Der Stellkolben wird dabei von einer hydraulischen Steuerflüssigkeit entgegen die Kraft einer Rückstellfeder verstellt und verändert somit die Drehstellung des Nockenrings und damit den Hochdruckförderbeginn der Pumpenkolben bzw. den Spritzbeginn der Kraftstoffeinspritzung.The invention is based on a fuel injection pump for internal combustion engines according to the preamble of
Bei der bekannten Ausgestaltung ist das Verbindungsglied also in einem radial liegenden Nockenring angeordnete Gewindebohrung eingeschraubt. Eine solche Bohrung ist bei einem sehr hoch belasteten Teil wie dem Nockenring, der einerseits gehärtet sein muß um die notwendige Verschleißfestigkeit im Betrieb aufzuweisen und andererseits wegen dieser Härte wiederum stark kerbempfindlich ist, von großem Nachteil. Dazu kommt Aufwand zur Einbringung der Gewindebohrung und der Verschraubung des Verbindungsgliedes.In the known embodiment, the connecting member is therefore screwed into a threaded bore arranged in a radially lying cam ring. Such a bore is of great disadvantage in the case of a very heavily loaded part such as the cam ring, which on the one hand has to be hardened in order to have the necessary wear resistance during operation and on the other hand is notch sensitive due to this hardness. In addition, there is an effort to make the threaded hole and screw the connecting link.
Die erfindungsgemäße Kraftstoffeinspritzpumpe mit den kennzeichnenden Merkmalen des Patentanspruchs 1 hat dem gegenüber den Vorteil, daß mit dem angeformten Verbindungsglied eine wesentlich bessere Krafteinleitung der auf den Nockenring aufzubringenden Stellkraft möglich wird und das gilt auch für die Haltekraft in einer bestimmten Einstellung des Nockenrings gegen die Verdrehkräfte, die durch Ablaufen der Rollen auf den Nocken beim Förderhub der Pumpenkolben auftreten. Weiterhin kann das Verbindungsglied jetzt unabhängig von der Lage der Nocken auf der Innenseite des Nockenringes angebracht werden, da die Nockenringwandstärke nicht mehr beeinflußt wird, wie dies beim Stand der Technik der Fall ist. Auch für die Montage vom Nockenring in Verbindung mit dem Stellglied ergibt sich eine Vereinfachung, da das Verbindungsglied relativ klein bauend nicht bei der Montage gesondert eingeschraubt werden muß.The fuel injection pump according to the invention with the characterizing features of
In vorteilhafter Weiterbildung des Gegenstands des Patentanspruchs 1 kann das Verbindungsglied auch walzenförmig sein mit parallel zur Achse des Nockenrings liegender Achse, was den Vorteil hat, daß ein größerer Kraftübertragungsquerschnitt an der Stelle des Übergangs des Verbindungsteiles zum Nockenring zur Verfügung steht. Weitere vorteilhafte Ausgestaltungen sind in den übrigen Unteransprüchen zu entnehmen und werden in der nachfolgenden Beschreibung näher erläutert.In an advantageous development of the subject matter of
Zwei Ausführungsbeispiele der Erfindung sind in der Zeichnung dargestellt und werden in der nachfolgenden Beschreibung näher erläutert. Es zeigen Figur 1 ein erstes Ausführungsbeispiel mit einer axialen Draufsicht auf den ringförmigen Teil, den Nockenring in einer ersten Ausführungsform, Figur 2 einen Schnitt senkrecht zur Ebene der Darstellung in Figur 1 als Draufsicht auf den Verstellteil des Nockenrings und Figur 3 ein zweites Auführungsbeispiel mit abgewandeltem Verbindungsglied.Two embodiments of the invention are shown in the drawing and are explained in more detail in the following description. 1 shows a first embodiment with an axial plan view of the annular part, the cam ring in a first embodiment, FIG. 2 shows a section perpendicular to the plane of the illustration in FIG. 1 as a plan view of the adjusting part of the cam ring, and FIG. 3 shows a second exemplary embodiment with a modified one Connecting link.
In der Figur 1 ist von einer Kraftstoffeinspritzpumpe der Verteilerpumpenbauart in einem Teilschnitt durch die Einspritzpumpe ein Nockenantrieb dargestellt, der zur Erzeugung der Bewegung von Pumpenkolben der im übrigen nicht näher dargestellten Kraftstoffeinspritzpumpe dient. Diese Einspritzpumpe ist in der Art einer Verteilerradialkolbenpumpe aufgebaut, von der in der Figur 1 der Schnitt durch einen Verteiler 1 wiedergegeben ist. Dieser wird von einer nicht weiter dargestellten Antriebswelle rotierend angetrieben und weist radiale Bohrungen 2 auf, die als Pumpenzylinder Pumpenkolben 3 führen. Weiterhin ist in einer sich an die Bohrungen 2 radial nach außen anschließenden Bohrung 4 mit größerem Durchmesser je ein Rollenstössel 5 geführt mit einer Rolle 6, die auf einer Nockenbahn 7 eines Nockenringes 8 bei der Drehung des Verteilers 1 abläuft. Die Pumpenkolben begrenzen dabei einen sich zur Achse des Verteilers hin anschließeden, nicht gezeigten Pumpenarbeitsraum, der über eine axiale Druckbohrung 9 zu der nicht dargestellten Verteilstelle des Verteilers führt, an der je nach Drehstellung des Verteilers eine von mehreren um den Umfang des Verteilers verteilt abgehenden Einspritzleitungen abführen. Diese versorgen entsprechende Einspritzventile.1 shows a cam drive of a fuel injection pump of the distributor pump type in a partial section through the injection pump, which serves to generate the movement of pump pistons of the fuel injection pump, which is not shown in any more detail. This injection pump is constructed in the manner of a distributor radial piston pump, of which the section through a
In dem Verteiler sind im ausgeführten Beispiel gleichmäßig verteilt vier Pumpenkolben vorgesehen die gemeinsam zur Druckbohrung 9 hin fördern. Entsprechende sind auf der Nockenbahn 4 nach innen weisende Nocken 11 vorgesehen. Die Nockenbahn befindet sich auf einem Ring mit dem wesentlichen quadratischen Querschnitt. Während es zur Forderung des Kraftstoffs und zum Antrieb der Pumpenkolben ausreicht, daß der Nockenring stillsteht, wobei er in einer entsprechenden zylindrischen Aufnahme des nicht weiter dargestellten Pumpengehäuses geführt ist, wird er durch Verstellung des Förderbeginns der Pumpenkolben jedoch verdreht. Je nach Drehstellung des Nockenrings wird also früher oder später ein Druckhub der Pumpenkolben erfolgen und somit der mögliche Kraftstoffeinspritzbeginn verändert. Zur Verdrehung des Nockenrings weist dieser nun erfindungsgemäß an seinem Außenumfang ein Verbindungsglied 12 auf, das die Form einer einstückig auf die zylindrische Außenfläche des Nockenringes aufgesetzte Walze hat. Wegen der Einstückigkeit ist das Verbindungsglied 12 nur über einen Teil seines Außenumfanges walzenförmig.In the example shown, four pump pistons are provided in the distributor in a uniformly distributed manner, which together promote the
Dieses walzenförmig ausgebildete Verbindungsglied greift zur Verstellung des Nockenringes in eine Ausnehmung 14 in einem Verstellglied 16 einer Verstelleinrichtung 17. Dabei handelt es sich um den bei Verteilerkraftstoffeinspritzpumpen üblichen hydraulischen Spritzversteller bestehend aus einem Kolben, dem genannten Verstellglied 16, der in einem Zylinder 18 verschiebbar angeordnet ist, wobei auf seiner einen Stirnseite eine Rückstellfeder 19 und auf seiner anderen Seite ein hydraulischer Stelldruck 20 angreift der über eine Zuleitung 21 von einer nicht weiter dargestellten Druckquelle 22 ständig zugeführt wird. Entsprechend dem Stelldruck wird dabei der Kolben 60 mehr oder weniger gegen die Kraft der Rückstellfeder 19 verschoben und stellt somit die Drehlage des Nockenrings und damit den Spritzbeginn ein. Insbesondere hat auch diese Verstelleinrichtung die Aufgabe den Nockenring in der einmal eingestellten Stellung zu halten. Gegen die rückstellenden Kräfte, die aufgrund des Ablaufes der Rollen 6 auf den Nocken 11 beim Druckhub der Pumpenkolben hervorgerufen werden.This roller-shaped connecting member engages in a
In der Figur 2 ist die Draufsicht auf einen Teilschnitt gemäß der Linie II/II von Figur 1 wiedergegeben. Der Schnitt geht dabei durch die Achse des walzenförmigen Verbindungsgliedes und zeigt, daß dieses in seiner Längserstreckung in der Außenkontur ballig ausgeführt ist. Damit können Fluchtungsfehler zwischen Stellglied 16 und Nockenring ausgeglichen werden. Zur besseren Lagerung des walzenförmigen Endes des Verbindungsgliedes 12 im Stellglied 16 ist in die Ausnehmung ein Lagerteil 24 eingesetzt, das das Verbindungsglied über einen Bereich der größer ist als 180°, umfaßt. In der somit gebildeten Lagerpfanne 25 kann sich das Verstellglied leicht bewegen und es erfolgt eine optimale Kraftübertragung vom Stellglied auf den Nockenring.FIG. 2 shows the top view of a partial section along the line II / II of FIG. 1. The section goes through the axis of the roller-shaped connecting member and shows that this is convex in its longitudinal extent in the outer contour. Alignment errors between
Bei einem zweiten Ausführungsbeispiel nach Figur 3 ist in vereinfachter Ausführung das Verbindungsglied 12 nur an den Seiten seiner Längserstreckung parallel zur Achse des Nockenrings mit einer walzenförmigen Oberfläche versehen, die in Richtung der Stellbewegung des Verstellgliedes 16 weisen. Das Verbindungsglied 12 steht dabei in direkter Anlage mit der Ausnehmung 14 des Verstellglieds 16. In alternativer Ausgestaltung kann das Verbindungsglied natürlich auch zusätzlich bearbeitet sein und ein kugelkopfartiges Ende aufweisen, mit dem es in eine entsprechend geformte Ausnehmung analog der Ausnehmung 14 im Verstellglied eingreift.In a second exemplary embodiment according to FIG. 3, in a simplified embodiment, the connecting
Der erfindungsgemäße Gedanke wurde beim vorstehenden Beispiel für eine Radialkolbenpumpe beschrieben. Gleiche oder ähnliche Verhältnisse liegen aber auch bei einer anderen Verteilerpumpenbauart vor, bei dem der Nockenantrieb aus einer Nockenscheibe mit axialweisender Nockenfläche und einem Rollenring besteht, auf dessen Rollen die Nockenfläche abläuft. Auch bei dieser Verteilereinspritzpumpe ist also ein rotierend angetriebener Teil, in diesem Fall die Nockenscheibe, und ein im wesentlichen feststehender Teil, in diesem Fall der Nockenring vorgesehen. Auch dieser wird analog zum oben beschriebenen Beispiel durch einen Spritzversteller in eine entsprechend gewünschte Drehlage gebracht. Für diesen Rollenring ist ein Verbindungsglied und Verstellglied der Spritzverstelleinrichtung notwendig. Dieses Verbindungsglied kann bei dieser Pumpe in analoger Weise zum oben beschriebenen Ausführungsbeispiel angeordnet und ausgeführt sein.The idea according to the invention was described in the example above for a radial piston pump. The same or similar conditions are also present in another type of distributor pump, in which the cam drive consists of a cam disk with an axially facing cam surface and a roller ring, on the rollers of which the cam surface runs. This distributor injection pump also has a rotatingly driven part, in this case the cam disk, and an essentially stationary part, in this case the cam ring. Analogous to the example described above, this too is brought into a correspondingly desired rotational position by a spray adjuster. For this roller ring, a connecting link and adjusting link of the injection adjustment device is necessary. This connecting link can be arranged and designed in this pump in a manner analogous to the exemplary embodiment described above.
Claims (5)
- Fuel injection pump for internal combustion engines, with at least one pump piston (3) and with a cam drive for generating the movement of the pump piston, the said cam drive consisting of an essentially stationary, twistable, annular part (8) and a rotary-driven part (1) assigned coaxially to this and of a cam track (7) which is arranged on one of the said parts and on which, following the cam track, rollers roll for the purpose of transmitting the cam profile of the cam track to the pump piston, with a setting device (17) for setting the annular part (8), the said setting device consisting of an actuating member (16) which, for coupling with the annular part, has a recess (14), into which engages a connecting member (12) which projects radially from the annular part (8) and which is integrally connected to the annular part (8), characterized in that the connecting member (12) is a single part which projects beyond the circumference of the annular part (8) and which, in the region in which it engages with at least its part facing in the setting direction of the actuating member (16) into the single recess (14) of the actuating member (16), is designed cylindrically with an axis lying parallel to the axis of rotation of the annular part (8).
- Fuel injection pump according to Claim 1, characterized in that the connecting member (12) is designed cylindrically and so as to be crowned along its axis.
- Fuel injection pump according to one of the preceding claims, characterized in that a bearing part (24) receiving the connecting member (12) in a bearing socket (25) is inserted into the recess (14).
- Fuel injection pump according to one of the preceding claims, characterized in that the annular part (8) is a cam ring with a cam running surface which faces the inside of the ring and on which run rollers (6) mounted in the rotary-driven part (1) and driving the pump piston.
- Fuel injection pump according to one of the preceding claims 1 to 4, characterized in that the annular part is a roller ring, and the rotary-driven part is a cam disc with an axially facing cam surface which runs on correspondingly mounted rollers of the roller ring during the rotation of the driven part and which drives a pump and distributor piston arranged axially relative to the roller ring.
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| DE4237471A DE4237471A1 (en) | 1992-11-06 | 1992-11-06 | Fuel injection pump |
| DE4237471 | 1992-11-06 |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| EP0597250A1 EP0597250A1 (en) | 1994-05-18 |
| EP0597250B1 true EP0597250B1 (en) | 1997-01-15 |
Family
ID=6472242
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| EP93116229A Expired - Lifetime EP0597250B1 (en) | 1992-11-06 | 1993-10-07 | Fuel injection pump |
Country Status (4)
| Country | Link |
|---|---|
| US (1) | US5406923A (en) |
| EP (1) | EP0597250B1 (en) |
| JP (1) | JPH06200852A (en) |
| DE (2) | DE4237471A1 (en) |
Families Citing this family (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| GB2291136A (en) * | 1994-07-12 | 1996-01-17 | Lucas Ind Plc | Cam ring-advance mechanism linkage |
| GB9619468D0 (en) * | 1996-09-18 | 1996-10-30 | Lucas Ind Plc | Advance arrangement |
| US7347984B2 (en) * | 2004-04-05 | 2008-03-25 | Jackson State University | Mammalian agmatinase inhibitory substance |
Family Cites Families (14)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE1143675B (en) * | 1961-04-01 | 1963-02-14 | Bosch Gmbh Robert | Adjustment device for the start of injection in injection pumps |
| DE1263397B (en) * | 1966-12-06 | 1968-03-14 | Bosch Gmbh Robert | Fuel injection pump for internal combustion engines |
| DE1805276C3 (en) * | 1968-10-25 | 1973-12-06 | Noginskij Sawod Topliwnoj Apparatury Im. 50. Letija Oktjabraja, Noginsk (Sowjetunion) | Control device on a fuel injection pump for internal combustion engines |
| GB1555482A (en) * | 1975-07-05 | 1979-11-14 | Lucas Industries Ltd | Fuel injection pumping apparatus |
| JPS5412035A (en) * | 1977-06-30 | 1979-01-29 | Diesel Kiki Co Ltd | Distirbution type fuel injection pump |
| DE2839014A1 (en) * | 1978-09-07 | 1980-03-20 | Bosch Gmbh Robert | FUEL INJECTION PUMP FOR INTERNAL COMBUSTION ENGINES |
| DE3001166A1 (en) * | 1980-01-15 | 1981-07-23 | Robert Bosch Gmbh, 7000 Stuttgart | FUEL INJECTION SYSTEM |
| US4393846A (en) * | 1980-02-15 | 1983-07-19 | Lucas Industries Limited | Fuel pumping apparatus |
| GB2118255B (en) * | 1982-04-13 | 1985-10-30 | Lucas Ind Plc | Fuel pumping apparatus |
| US4448774A (en) * | 1982-12-22 | 1984-05-15 | Fisons Corporation | Steroid formulation |
| JPS59162325A (en) * | 1983-03-07 | 1984-09-13 | Suzuki Motor Co Ltd | Fuel injection device |
| US4552117A (en) * | 1984-10-09 | 1985-11-12 | Stanadyne, Inc. | Fuel injection pump with spill control mechanism |
| US4644924A (en) * | 1984-10-09 | 1987-02-24 | Stanadyne, Inc. | Fuel injection pump with spill control mechanism |
| US5059096A (en) * | 1990-12-26 | 1991-10-22 | Lucas Industries Public Limited Company | Fuel pumping apparatus |
-
1992
- 1992-11-06 DE DE4237471A patent/DE4237471A1/en not_active Withdrawn
-
1993
- 1993-09-24 US US08/127,028 patent/US5406923A/en not_active Expired - Lifetime
- 1993-10-07 EP EP93116229A patent/EP0597250B1/en not_active Expired - Lifetime
- 1993-10-07 DE DE59305139T patent/DE59305139D1/en not_active Expired - Fee Related
- 1993-11-04 JP JP5275271A patent/JPH06200852A/en active Pending
Also Published As
| Publication number | Publication date |
|---|---|
| EP0597250A1 (en) | 1994-05-18 |
| JPH06200852A (en) | 1994-07-19 |
| DE4237471A1 (en) | 1994-05-11 |
| DE59305139D1 (en) | 1997-02-27 |
| US5406923A (en) | 1995-04-18 |
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