WO2019240710A2

WO2019240710A2 - An electromagnetic valve system

Info

Publication number: WO2019240710A2
Application number: PCT/TR2019/050181
Authority: WO
Inventors: Rahman SIMSEK
Original assignee: Individual
Current assignee: Individual
Priority date: 2018-03-20
Filing date: 2019-03-20
Publication date: 2019-12-19
Anticipated expiration: 2020-09-20
Also published as: WO2019240710A3

Abstract

The invention relates to valve systems which operate in the cylinder head structure without entering into the cylinder, eliminating the limiting of the compression ratio by opening the valves into the cylinder.

Description

AN ELECTROMAGNETIC VALVE SYSTEM

TECHNICAL FIELD

PRIOR ART

Existing valve systems consist of timing belt/chain, tension pulleys, cam shafts, rocker mechanisms, thrusters, valve springs, spring plates, connecting tabs, guides, valve stem seals and valves. The valve systems are driven over the crankshaft by means of a belt or chain. When the crankshaft rotates two turns, the camshafts rotate one turn.

In internal combustion engines, both the intake and exhaust valves remain open for a while when the piston reaches the top dead center (T.D.C). This situation is called“valve overlap”. In this working position the intake valve is opened while the exhaust valve is closed. Consequently, the approach of the piston to the cylinder head is restricted so that the piston does not hit the valves. With this limitation, the compression ratio is also limited. If the valves were opened and closed on the cylinder head without entering the cylinder, the compression ratios could be increased.

Intake and exhaust valves are closed during compression and working times. When the piston is at the top dead center at the end of the compaction time and at the start of the work time, both valves are closed and this called“timing”. In general, the valves operate in 4 positions. These are; the intake valve is open, the intake and exhaust valves are closed, the exhaust valve is open and the both valves are open called valve overlap. In existing engines, as the piston cannot be paused at the upper dead center, valve overlapping is a necessity in order to improve the intake and exhaust efficiencies. If an electromagnetic valve could perform suction and exhaust times, there would be no need for system components such as timing belt, chain and gear, valve spring, camshaft, rocker mechanism and variable valve timing equipment. Therefore, the production and maintenance costs would decrease and the system would be more efficient. Our invention subject to the application provides the aforementioned advantages.

BRIEF DESCRIPTION OF THE INVENTION

The invention relates to a valve system which operates on the basis of the electromagnetic operating principle in the cylinder head structure without entering into the cylinder, eliminating the limiting of the compression ratio by opening the valves into the cylinder and having an intake and exhaust port on it. LIST OF THE FIGURES

Figure 1. Valve System Perspective View

Figure2. Valve System Side View

Figure 3. A-A Section View

Figure4. Cylinder Head and Manifold Mounted Perspective View

Figure 5. Cylinder Head and Manifold Mount Bottom View

Figure 6. A-A Section View

Figure 7. Manifold Perspective View

Figure8. Manifold Top View

Figure 9. A-A Section View

Figure 10. Valve System Exploded Top View

Figure 11. Valve System Exploded Bottom View

System Components:

1. Valve

2. Liner

2.1. Suction Port

2.2. Exhaust Port

3. Cylinder Port

4. Compression Ring

5. Valve Cover

6. Cylinder Head

6.1. Suction Port

6.2. Exhaust Port

7. Manifold 7.1. Suction Manifold

7.2. Exhaust Manifold

8. Coil

9. Coil Cover

10. Coil Body

11. Plunger

DETAILED DESCRIPTION OF THE INVENTION

As the valves (1 ) of our invention will be opened and closed in the structure of the cylinder head (6), the cylinder covers (6) are also redesigned. The cylinder head (6) is designed to act as a bearing for the electromagnetic valve system and has coolant channels, suction port (6.1 ) and exhaust port (6.2).

The suction and exhaust manifold (7) is integrated on the cylinder head (6). The manifolds (7) can be used integrated or separately. If necessary, heat dissipation can be accelerated by circulating the coolant in the region between the intake manifold (7.1 ) and the exhaust manifolds (7.2) in the integrated manifold (7). If liquid cooling is installed in the manifold (7), the coolant heated by the hot exhaust gases will bring the engine to working temperature in a shorter time. During the warm-up process, the warmed intake air will evaporate the fuel more easily, increase the combustion efficiency and save fuel.

System elements such as timing belt, chain and gear, valve spring, camshaft, rocker mechanism and variable valve timing equipment are not used in the electromagnetic valve system (1 ). The electromagnetic valve (1 ) will be operated by at least one of an electronic control unit (ECU) and distributor type mechanical signal distributor switch hardware. Valve liners (2) with suction port (2.1 ) and exhaust ports (2.2), which are located at the cylinder head (6) and which have at least one of the straight and helical passages (3) to provide gas and air inlet and outlet to the cylinder are used in the system. The cylinder port (3) with gas passage channels is not opened to the circumferential zone of the liners (2) up to 180°. The cylinder passage channels are the cylinder ports (3). There are at least two compression rings (4) and their slots on the valve (1 ). The compression rings (4) on the valve (1 ) provide sealing. The valves (1 ) work together with the rings in the valve liners (2) in the forward and backward directions by making three-position linear movement. These positions are suction is open, suction and exhaust are closed and exhaust is open. As can be seen from this point, there is no valve overlap position in our electromagnetic valve (1 ) system where the suction port (2.1 ) and the exhaust ports (2.2) are open.

The valves (1 ) are moved by means of the plunger (11 ) placed on their shafts. The plunger (11 ) is a part that moves under the influence of magnetic fields in the space in the center of the coils (8) by moving linearly. Faster positioning with lower tension springs to be placed in front of and behind the plungers (11 ) can be achieved. At least one coil winding is used for each cylinder. In the control of the electronic control unit, a current of the battery is passed through the coil windings. The electromagnetic field force occurs when the battery current is passed through the coil windings. When the battery current is cut off by the ECU (electronic control unit), the electromagnetic field strength is eliminated. From which coil (8) the battery current is passed, the plunger (11 ) is displaced by linear movement towards the space in the center of that coil (8). In the meantime, the valve takes one of the three operating positions. The coil body (10) protects the coils against external effects by acting as a bearing. The coil cover (9) covers the coil body. It also includes a socket for connecting the coil cable ends to the cable connector comes from the electronic control unit.

Up to two valves (1 ) are used in the system for each cylinder. With the use of a valve (1 ) for a cylinder, the number of valves (1 ) is reduced, while both the suction and exhaust tasks are performed by the electromagnetic valve (1 ). When the crankshaft has driven at least one turn, the valves (1 ) take 3 positions once in the working course range. Therefore, depending on the crankshaft movement, the battery current sent to the coil windings must be started and cut. Electrical signals dependent on the number of crankshaft full turns must be generated in order for the electronic control unit to generate square wave command signals that set when to start and stop the coil windings current. Position sensors will generate electrical signals dependent on the crankshaft movement as the main parameter. In all engine revolution ranges, the waiting times of the valves (1 ) can be changed for maximum volumetric cylinder fill and exhaust discharge. In this case, the opening range of the valves (1 ) in terms of the crank angle is variable and not constant. The signals from the accelerator pedal position sensor, speed sensor and air flow meter are used by ECU as auxiliary parameters for this work. The electronic control unit controls the current of the coil windings by processing the signals from these sensors according to the software installed in it.

Fluid or gas cooling can be applied to the coils and valves (1 ) used in the system. Especially, the fuel injector to be placed on the cylinder head (6) and the fuel entering the cylinder during the direct injection provides partially lubricating while cooling the liner (2), the valve (1 ) and the compression rings (4).

Claims

1. An electromagnetic valve system characterized in that comprising;

- at least one of an electronic control unit (ECU) and a distributor type mechanical signal distributor switch hardware,

- a valve (1 ) which is operated by at least one of an electronic control unit (ECU) and a distributor type mechanical signal distributor switch hardware,

- a multiple of valve liners (2) with suction port (2.1 ) and exhaust ports (2.2), which are located at the cylinder head (6) and which have at least one of the straight and helical passages (3) to provide gas and air inlet and outlet to the cylinder,

- at least two compression rings (4) and their slots,

- a cylinder head (6) comprising coolant channels, suction port (6.1 ) and exhaust port (6.2),

- an integrated suction and exhaust manifold (7) accelerates heat dissipation by circulating the coolant in the region between the intake manifold (7.1 ) and the exhaust manifolds (7.2)

- A plunger (11 ) placed on valve shafts which moves the valves (1 ) and displaces by linear movement in the space in the center of the coils (8),

- an accelerator pedal position sensor, a speed sensor and an air flow meter.

2. The liner (2) of Claim 1 , characterized in that by not having the cylinder port (3) with gas passage channels on its circumferential zone up to 180°