FI122762B - Liquid fuel pump control device - Google Patents

Description

Device for controlling the discharge pump

The invention relates to a device for controlling a discharge liquid pump according to the preamble of claim 1.

In known devices for controlling a discharge fluid pump in target-5 devices which transfer the movement of the cam curve through the lever arm to the pump pusher of the fuel injection pump pump, the power flow or power supply the torsion flanks disposed adjacent to the chuck body transfer the pivoting arm movement of the lever arm to the chuck chuck member of the pump pusher, ultimately resulting in an oscillatory or gradual or stepwise movement of the chuck body of the acting pusher. This kind of power supply to the controllable pump pusher is detrimental because the whole device is under considerable mechanical stress and therefore sensitive to wear.

Thus, it is an object of the present invention to provide a novel device for controlling a discharge pump.

This object is achieved by a device according to claim 1 for controlling a fuel-liquid pump. According to the invention, the roller body of the pump pusher or each pump pusher rotates immediately with the roller body of the corresponding lever arm.

In accordance with the present invention, the pusher roller body which operates the controllable pump pusher rotates immediately with the roller piece 25 of the respective lever arm. As a result, the application of force to the pump pusher is <m better and the power flow optimized. The device for controlling the fuel pump according to the invention is subject to less mechanical stress and therefore less wear g.

Preferred embodiments of the invention will be apparent from the dependent claims and the following description. The examples of the invention will be explained in more detail by way of the drawing, without being limited thereto. In this case: £ 2 - Figure 1 shows a device according to the invention for controlling the discharge liquid pump o. Figure 2 shows a detail of the device of Figure 1 at 90 ° in a circular cross-sectional view of Figure 1.

2

The present invention will now be described in more detail with reference to Figures 1 and 2.

FIG. The controllable pump pusher 11 is mounted on the guide 12 and can be moved in the direction of the longitudinal center shaft 13. The guide 12 of the pump pusher 11 engages so-called. spacer 14 for attaching the discharge fluid pump.

The device 10 for controlling the pump pusher 11 according to the invention comprises, as shown in Fig. 1, at least one cam wheel 15 having a guide curve 23, the cam wheel 15 being implemented in the so-called example. kol moisnokkapyöränä. On top of cam cam 15 or its guide curve 23, a roll member 17 of lever arm 16 is rotatably mounted on one end 18 of lever arm 16, whereby lever arm 16 can be pivoted about pivot point 20 of head 19 opposite head 15 18.

In cooperation with the controllable pump pusher 11, there is a feed roller assembly 21 disposed and rotatably mounted in a chamber 22 defined by the pump pusher 11. According to the present invention, the pusher roller assembly 21 rotates immediately on the roller arm 17 of the lever arm 16, wherein the pusher roller assembly 21 rotates continuously on the roller arm 17 of the lever arm 16. The power required to control the pump pusher 11 is thus from the cam wheel 15 to the roller 17 of the lever arm 16 and immediately from this roller member 17 to the pusher roller 21, which eventually drives the pump pusher 11. cm angle of contact normal forces are preferred. The article of the invention consumes little and has low frictional losses.

The device according to the invention can be used in monocycle and multicycle systems as well as in all types of high-pressure piston pumps for combustion x 30 fuel.

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C \ l 3 From Claim Number 10 Device 11 Pump Push 12 Guide 5 13 Center Pivot 14 Spacer 15 Cam Cams 16 Lever 17 Roll Item 10 18 Head 19 Head 20 Swivel Point 21 Push Roll Item 22 Chamber 15 23 Steering Curve

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Claims (2)

1. Laite polttonestepumpun ohjaamiseksi, nimittäin polttovoimako-neen suihkutuspumpun ainakin yhden pumpputyöntimen (11) ohjaamiseksi, jossa laitteessa on ainakin yksi nokapyörä (15) ja ainakin yksi rollakappaleen (15) roll-kappale (17) pyörii nokapyörällä (15) ja jolloin tästä pyörimisliikkeestä riippuen suihkutuspumpun pumpputyönnintä (11) voidaan ohjata tai käyttää pump-putyöntimeen (11) kuuluvan työntimen rollakappenä roll-kappale (21) pyörii velittömästi vastaavan vipuvarren (16) rollakappaleen (17) päällä, jolloin rollakappale (17) on laakeroitu pyöriväsi! vipuvarren (16) toiseen päähän (18), ja vipuvarsi (16) on käännettävissä tätä päätä (18) vastapäätä olevan pään (19) kääntöpisteen (20) ympäri siten, etä tapahtuu suora voiman-syättö tyon hour rollakapaleen 15 (21) yes pumpkin hour hour (11) suuntaan. (M δ (M tn o X Χ CL 00 h- · 00 o CD O o {M 1. Device for controlling a fuel pump, namely for controlling at least one pump slider (11) of a fuel pump injection pump, which means at least has a cam wheel. (15) and at least one arm shaft (16) comprising a roller piece (17), the arm shaft of each arm shaft (16) rotating with the cam wheel (15) and depending on this rotational movement of the pump slide of the spray pump (11). ) can be controlled or used via the slider roll piece (21) belonging to the pump slider (11), characterized in that the pump slider's eleins each roll roller (11) of the pump slider (11) rotate inexorably on the corresponding arm shaft (16). a roller piece (17), wherein the roller piece (17) is rotatably mounted at the other end (18) of the arm shaft (16), and the arm shaft (16) can be pivoted around the pivot point (20) of the end (19) in the middle towards this end (18), such that there is a direct supply of power from the cam wheel (15) over the roll piece (17) in the direction of the slide piece (21) and the pump slider (11). (M δ (M i tn o X Χ CL 00 I'- oo o CO o o CM