DE2411430A1 - Mechanism for rotating reciprocating valve of I.C. engine - during valve lift magnets are utilized on valve unit and cylinder head - Google Patents

Abstract

The magnets preferably have the same polarity. Around the valve and connected with it, a number of magnets may be arranged in an annular pattern whilst corresponding magnets are arranged in a similar pattern on the cylinder head, whereby the valve magnet ring consists of two tiers at a vertical distance relative to one another, both comprising tooth-shaped magnets spaced around the ring such that the peaks of one tier point towards the intermediate spaces of the other tier. The arrangement is such that the magnets on the cylinder head ring are spaced at the same circumferential distance and extend radially between the two tiers of the valve ring.

Description

AKHD

Klöckner-Humboldt-DeutzAG AKHD 5 ^, ^ g ^ _den ^ p _ebruar

Our reference: D 74/15 - APTB Za / Bu

Valve rotating device for internal combustion engines

The invention relates to a valve rotating device for internal combustion engines, in which the rotation of the valve during the stroke movement is caused by the action of force between this and a fixed housing part takes place.

It is known valve rotating devices with mechanical (Rotocap) or hydraulic (DT-OS 2 054 362) drive to provide. Both devices require a large number for the transmission of the rotary movement to the valve mechanical parts. These mechanical parts are usually subject to wear and tear and thus lose weight its full effect at a certain time. As a result, these turning devices only have a limited service life.

The invention is based on the object of avoiding the above disadvantages and thus providing a valve rotating device improve that no wear and tear and low friction losses as well as an unlimited service life. ·

509837/0200

Akhd. ₂ . _ ■

• D 74/15

Klöckner-Humboldt-Deutz AG ajv ^ mm.m mwmr _? - 12 2 191A

The object of the invention is achieved in that the force is generated by magnets connected to the valve and the housing part are in communication. Since the forces between magnets without mechanical intervention, occur exclusively due to the magnetic flux, the proposed valve device works Contact-free and therefore wear-free, which means that it has a practically unlimited service life with full functionality given is. A preferred embodiment of the invention provides that the interacting magnet ends are designed homopolar. The magnets are arranged so that it is comparable to a mechanical guide a magnetic guidance is created by repulsive forces.

In the further embodiment of the invention it is proposed that around the valve and connected to it, as well as correspondingly a larger number of magnets are arranged in a ring on the housing part, that the one ring has a double row of magnets arranged at a distance from one another in the stroke direction, each Magnet row with spaced apart tooth-shaped magnets carries the tips of each other and in

509837/0200

241H30 A KHD

Klöckner-Humboldt-Deutz AG Ζλαϊ ^ Π »^ _ ₃ _ February 12, 1974

D 74/15

the gaps in the magnets of the opposite row show and that the magnets of the other ring are the same distance apart have to each other, like the magnets of a ring, the effective area of these magnets approximately the gap of the tooth-shaped magnets from one row to the other. The rows of teeth show a non-magnetic Zigzag track. The magnets of the counter ring are guided along this path and cause a Rotary motion. In order to keep the amount of oil reaching the valve stem low, it is advisable that on Valve a "cup-shaped part is attached to the one the ring with magnets carries. The magnets in both rings are so in the surrounding material used that the operatively connected magnet ends are in the surface plane. The distance between the individual magnets in a row or in the adjacent rows is so small that a permanent force is exerted is present between the magnets and there is no intermittent effect that would override the magnetic forces could be done.

It is also proposed that the bench-type tooth-shaped Magnets that are positioned in the direction of the valve disc

509837/0200

241U30 KHD

Klöckner-Humboldt-Deutz AG zjvu ■ -me aw «. 4 - 12 2 1974

D 74/15

ordered row has a recess in the area of the tooth base. The point of this recess is there is to give the rotating part the opportunity to perform a post-rotation when the valve is closed. A simple and easily producible design of the recess is achieved in that seen in the direction of rotation, the first tooth flanks of the row of magnets arranged in the direction of the valve disk are arranged parallel to the valve stem.

To further explain the invention, reference is made to the drawings in which an exemplary embodiment the invention is shown in simplified form. Show it:

Fig. 1 is a longitudinal section through a valve device according to the invention,

Fig. 2 is a partial view of the cup-shaped part in the direction of the arrow X in development, with a magnet of the ring in the housing part to explain the Functionality is shown in dash-dotted lines in different positions.

509837/0200

241U3Q

Klöckner-Humboldt-Deutz AG A ^ I ^ H GdI ₅ -

D 74/15

In Fig. 1, 1 denotes a housing part which is made in one piece with the cylinder head. In the housing part 1 there is a valve 2 with valve springs 3 which are clamped between two spring plates 4 and 5 are arranged. The valve disk 5 assigned to the cylinder head is supported via a ball bearing 6 this from, whereby a smooth rotatability of the valve 2 is achieved. On valve 2 is a cup-shaped Part 7 attached, which carries a magnetic ring 8, which consists of two rows of magnets 9 and 10. On the housing part 1, a magnetic ring 17 is attached, which consists of magnets 11, the rod-shaped, with circular Cross-section are formed. The magnets of the magnetic ring 8 and the magnetic ring 17 are with their north pole sides arranged against each other. The rows of magnets 10 and 10 of the magnetic ring 8 have tooth-shaped magnets and 13, which are shown in Fig. 2, their tips towards each other and into the gaps of the mangete of the \ f

Show opposite row. The tooth-shaped magnets 12 and 12 each have a tooth tip 14 and a tooth base 15. A with 18 designated arrow in Fig. 2 indicates the direction of rotation of the valve rotating device. The tooth-shaped

509837/0200

241H30

Ακκο

• D 74/15

'' Löckner-Humboldt-DeutzAG u ^ xm-mm aw _ g ._ 12 2 1974

Magnets 13 of the magnet row 10 have a recess 16 in the region of the tooth base 15 in such a way that the Seen in the direction of rotation, the first tooth flanks are arranged parallel to the valve stem.

At the end of each stroke (opening and closing), the magnets shown in dash-dotted lines reach 11 a position (a and b) from which no reverse rotation is possible. The reverse rotation is prevented by that the tooth tips 14 of the magnets 12 and 13 are approximated to the tooth flanks trailing in the direction of rotation, so that magnetic bottlenecks arise. Moved by the repulsive forces known per se of the homopolar magnets the cup-shaped part 7 and thus the valve 2 is supported to the magnets 11, along the non-magnetic zigzag formed by the tooth-shaped magnets 12 and 13 zackbahn, so that when the valve is open the magnets are in position a and when the valve is closed in position b are located. Due to the recess 16 there is the possibility that the cup-shaped part 7 and the valve 2 rotate can, which is indicated in position c of the magnet 11. The distance between each magnet and 13 in rows 9 and 10 is exactly as large as the distance between magnets 11, so that all magnets are simultaneously in operative connection.

509837/0200

Claims (7)

241H30 Kiöckner-Humboidt-DeutzAG ΔKHD 5 K0I11 so, February 12, 1974 'Our reference: D 74/15 - APTB Za / Bu 1. / Valve rotating device for internal combustion engines, in which the rotation of the valve during the lifting movement takes place by the action of forces between this and a stationary housing part, characterized in that that the force is generated by magnets (11, 12, and 13), " which are in communication with the valve (2) and the housing part (1). 2. Valve rotating device according to claim 1, characterized in that the interacting magnet ends are designed homopolar. 3. valve rotating device according to one of claims or 2, characterized in that around the valve (2) and connected to this and, correspondingly, a larger number of magnets on the housing part (1) (11, 12 and 13) are arranged in a ring that one ring (8) is spaced apart in the stroke direction has mutually arranged double rows of magnets (9 and 10), each row of magnets (9 or 10) at a distance Tooth-shaped magnets arranged in relation to one another (12 and 13) 509837/0200 241H30 KHD. KLÖCKNER-HUMBOLDT-DEUTZ AG KÖuN _ β ". 13 · 2nd 1974 D 74/15 whose tips (i4) point to each other and into the gaps of the magnets (12 or 13) of the opposite row (! 9 "or 10) and that the magnets (11) of the other ring (17) have the same distance from one another, as the magnets (12 and 13) of one ring (8), the effective area of these magnets (11 ·) roughly corresponding to the space between the tooth-shaped magnets (12 and 13) of one row (9) to the other row (10). 4. valve rotating device according to one of claims 1 to 3, characterized in that on Valve (2) a cup-shaped part (7) is attached, which carries one of the magnets (11 or 12, 13) having rings (8 or 17). 5. Valve rotating device according to one of claims 1 to 4, characterized in that the magnets (11, 12 and 13) in both rings (8 and V) are inserted into the surrounding material in such a way that the "Hilrkver bond ending in magnet the surface plane. 6. Valve rotating device according to one of the claims 1 to 5, characterized in that the adjacent tooth-shaped magnets (12 and 13) of the rows (10) arranged in the direction of the valve disk each have a recess (16) in the area of the tooth base. 241 H3Q ΑΚΗΒ D 74/15 KIöckner-HumboIcK-DeutzAG z / * A «me bhv _ Q _ Λ" Κ O 1Q7Zi 7. valve rotating device according to claim 6, characterized in that the direction of rotation (18) seen first tooth flanks of the arranged in the direction of the valve disk row of magnets (10) parallel to Valve stem (2) are arranged. 509837/0200 Le e r t e ei