DE1526700A1 - Roller tappets for injection pumps on internal combustion engines - Google Patents
Roller tappets for injection pumps on internal combustion enginesInfo
- Publication number
- DE1526700A1 DE1526700A1 DE19661526700 DE1526700A DE1526700A1 DE 1526700 A1 DE1526700 A1 DE 1526700A1 DE 19661526700 DE19661526700 DE 19661526700 DE 1526700 A DE1526700 A DE 1526700A DE 1526700 A1 DE1526700 A1 DE 1526700A1
- Authority
- DE
- Germany
- Prior art keywords
- roller
- injection pumps
- internal combustion
- combustion engines
- plunger
- 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
- F02M59/02—Pumps specially adapted for fuel-injection and not provided for in groups F02M39/00 -F02M57/00, e.g. rotary cylinder-block type of pumps of reciprocating-piston or reciprocating-cylinder type
- F02M59/10—Pumps specially adapted for fuel-injection and not provided for in groups F02M39/00 -F02M57/00, e.g. rotary cylinder-block type of pumps of reciprocating-piston or reciprocating-cylinder type characterised by the piston-drive
- F02M59/102—Mechanical drive, e.g. tappets or cams
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
- F04B—POSITIVE-DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS
- F04B1/00—Multi-cylinder machines or pumps characterised by number or arrangement of cylinders
- F04B1/04—Multi-cylinder machines or pumps characterised by number or arrangement of cylinders having cylinders in star- or fan-arrangement
- F04B1/0404—Details or component parts
- F04B1/0408—Pistons
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Chemical & Material Sciences (AREA)
- Combustion & Propulsion (AREA)
- Fuel-Injection Apparatus (AREA)
- Valve-Gear Or Valve Arrangements (AREA)
Description
klöckner-humboldt-deutz ag■ Köln Köln den 22 11 1966klöckner-humboldt-deutz ag ■ Cologne Cologne, 22 11 1966
*" " ~ .""'." TP Moe/3i D. 66/92* "" ~. "" '. "TP Moe / 3i D. 66/92
Rollenstößel für Einspritzpumpen an BrennkraftmaschinenRoller tappets for injection pumps on internal combustion engines
Bisher war es üblich, die die Kraft von der Nockenwelle auf den Stößel übertragende Rolle auf einem im Stößel eingesetzten Bolzen zu lagern, ein Verfahren, da/3 insofern eine hoch präzise Fertigung, erfordert, als einmal die Achse des Rollenbolzens genau parallel zur Nockenwellenachse und außerdem die Bohrung in der Rolle genau zentrisch verlaufen müssen, wenn ein einwandfreier Lauf der Rolle auf dem Nocken gewährleistet sein soll. Dieser Zwang zu einer sehr genauen Fertigung ist ein Nachteil, der erfindungsgemäß dadurch vermieden wird, daß die Rolle im Stößel lose in einer zylindrischen' Bettung aufliegt, deren Radius dem Rollenradius entspricht und die sich über den halben Rollenumfang erstreckt. Previously it was common practice to have the power from the camshaft on the Plunger-transmitting role on a bolt inserted in the plunger to store, a process because / 3 insofar a high-precision production, requires than once the axis of the roller bolt is exactly parallel to the camshaft axis and also the hole in the roller must be exactly centric if the roller is running properly should be guaranteed on the cam. This compulsion to one very precise production is a disadvantage, which is avoided according to the invention that the roller in the plunger loosely in a cylindrical ' Bedding rests, the radius of which corresponds to the roller radius and which extends over half the roller circumference.
■Fertigungstechnisch bedeutet die lose Rolle insofern eine erhebliche Vereinfachung, als hinsichtlich der Ausrichtung der Bettung zur No-cicenwellenaehse Abweichungen geringen Ausmaßes in Kauf ge- * nommen werden können, da sich die Rolle gegebenenfalls in kurzer Zeit einläuft. Ein weiterer Vorteil des erfindungsgemäßen Stößels i.jt darin zu sehen, daß er gegenüber einem Stößel mit bolzengelagerter Rolle bei gleicher Größe im Hinblick auf die für die Rolle zur Verfügung stehende größere lagerflache größere Kräfte 7ΛΧ übertragen vermag., _■ In terms of production technology, the loose roller means a considerable simplification, as slight deviations can be accepted with regard to the alignment of the bedding to the camshaft axis, since the roller may run in in a short time. Another advantage of the tappet according to the invention is that it is able to transmit greater forces 7ΛΧ compared to a tappet with a bolt-mounted roller with the same size in view of the larger bearing surface available for the roller., _
In weiterer Ausgestaltung der Erfindung wird vorgeschlagen, die lose ,iolle nicht -unmittelbar im Stößel zu betten, sondern in - In a further embodiment of the invention, it is proposed that the loose, iolle not be embedded directly in the plunger, but rather in -
BAD ORIGINAL 009809/0461 - 2 -BATH ORIGINAL 009809/0461 - 2 -
D 66/92D 66/92
einem besonderen, in letzteren eingesetzten Schuh. Bildet man diesen Schuh außen zylindrisch aus, so vereinfacht sich die Herstellung des Stößels insofern,- als diese am Ende lediglich Drehflächen aufweist. Als weiterer Schritt zur Vereinfachung der Herstellung Wird empfohlen, den Schuh aus Sintermetall zu fertigen. Er kann dann ohne weiteres genau fertiggepreßt v/erden.a special shoe used in the latter. If this shoe is designed to be cylindrical on the outside, this is simplified Production of the plunger insofar as this only has surfaces of rotation at the end. As a further step towards simplification It is recommended to manufacture the shoe from sintered metal manufacture. It can then be precisely pressed to completion without further ado.
Gegen Herausfallen aus dem Stößel bzw. gegebenenfalls aus dem Schuh kann die I-colle durch einen sie zentral durchsetzenden Stift gesichert'werden, wobei der Durchmesser .der Durchsatzbohrung in der xiolle größer ist als der Durchmesser des Sicherungsstiftes. - .Against falling out of the plunger or, if necessary, from the Shoe can enforce the I-colle through a central one Pin secured, with the diameter of the through-hole in which xiolle is larger than the diameter of the locking pin. -.
In der Zeichnung ist ein Ausführungsbeispiel der Erfindung dargestellt.: - In the drawing, an embodiment of the invention is shown: -
Abb. 1 zeigt einen Holienatoßel teilweise im Schnitt rechtwinklig zur Pollenachse,Fig. 1 shows a Holien anatosus partially in a right-angled section to the pollen axis,
Abb. 2 einen Schnitt nach der Linie.11-11 in Abb. 1.Fig. 2 a section along the line 11-11 in Fig. 1.
Der. in Abb. 1 gezeichnete Rollenstößel ist ein zylindrischer Körper, der an seinem nockenwellenseitigen Ende eine konzentrische Bohrung aufweist, in die schließend ein die Laufrolle 2 aufnehmender Schuh 3 aua Sinterwerkstoff eingesetzt irt. Die mit dem Nocken 4 zusammen arbeitende Holle 2 liegt .am Grunde des Schuhes 3 in einer zylindrischen Bettung satt auf und ist,Of the. The roller tappet shown in Fig. 1 is a cylindrical one Body which has a concentric bore at its end on the camshaft side, into which the roller 2 is closed The receiving shoe 3 is made of sintered material. the Holle 2 working together with the cam 4 is at the bottom of the shoe 3 in a cylindrical bedding and is,
0 0 9 8 0 9 /04 61 BAD OFHQINAL0 0 9 8 0 9/04 61 BAD OFHQINAL
- ■ ■ - ■ - ■ -■— 3 ™°- ■ ■ - ■ - ■ - ■ - 3 ™ °
wie insbesondere Abb. 2 gut erkennen läßt, gegen Herausfallen ' bei der Montage oder Demontage dureh einen Stift 5 gesichert. In die Bettung für die Rolle 2 ist eine Schmiermitteltasche 6 eingearbeitet-, der während des Betriebes durch den Kanal 7, den Sammelrauin ο und α en Kanal -9 unter Druck Schmieröl zugeführt wird.as can be seen particularly well in Fig. 2, against falling out ' secured by a pin 5 during assembly or disassembly. In the bedding for the roller 2 there is a lubricant pocket 6 incorporated, which during operation through the channel 7, the Collecting reams ο and α en duct -9 supplied lubricating oil under pressure will.
BAD ORIGINALBATH ORIGINAL
009 80 9 /046!009 80 9/046!
Claims (1)
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DEK0060786 | 1966-11-25 |
Publications (3)
Publication Number | Publication Date |
---|---|
DE1526700A1 true DE1526700A1 (en) | 1970-02-26 |
DE1526700B2 DE1526700B2 (en) | 1973-03-01 |
DE1526700C3 DE1526700C3 (en) | 1973-09-20 |
Family
ID=7229761
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
DE19661526700 Expired DE1526700C3 (en) | 1966-11-25 | 1966-11-25 | Roller tappets for fuel injection pumps |
Country Status (1)
Country | Link |
---|---|
DE (1) | DE1526700C3 (en) |
Cited By (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
WO1995027135A2 (en) * | 1994-04-02 | 1995-10-12 | Bosch Gmbh Robert | Fuel injection pump |
WO2006037676A1 (en) * | 2004-10-06 | 2006-04-13 | Siemens Aktiengesellschaft | Radial piston pump comprising a roller tappet |
EP3073066A1 (en) * | 2015-03-27 | 2016-09-28 | Aktiebolaget SKF | Cam follower, injection pump and valve actuator comprising such a cam follower, and manufacturing method |
Families Citing this family (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE4228854C2 (en) * | 1992-08-29 | 2000-01-20 | Deutz Ag | Roller plunger |
-
1966
- 1966-11-25 DE DE19661526700 patent/DE1526700C3/en not_active Expired
Cited By (6)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
WO1995027135A2 (en) * | 1994-04-02 | 1995-10-12 | Bosch Gmbh Robert | Fuel injection pump |
WO1995027135A3 (en) * | 1994-04-02 | 1995-11-09 | Robert Bosch Gmbh | Fuel injection pump |
WO2006037676A1 (en) * | 2004-10-06 | 2006-04-13 | Siemens Aktiengesellschaft | Radial piston pump comprising a roller tappet |
EP3073066A1 (en) * | 2015-03-27 | 2016-09-28 | Aktiebolaget SKF | Cam follower, injection pump and valve actuator comprising such a cam follower, and manufacturing method |
CN106014735A (en) * | 2015-03-27 | 2016-10-12 | 斯凯孚公司 | Cam follower, injection pump and valve actuator, and manufacturing method |
US10006425B2 (en) | 2015-03-27 | 2018-06-26 | Aktiebolaget Skf | Cam follower, injection pump and valve actuator having such a cam follower, and manufacturing method |
Also Published As
Publication number | Publication date |
---|---|
DE1526700B2 (en) | 1973-03-01 |
DE1526700C3 (en) | 1973-09-20 |
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Legal Events
Date | Code | Title | Description |
---|---|---|---|
C3 | Grant after two publication steps (3rd publication) |