Wartsila Finland Oy

Abloy Oy

Prorauta

Menumat Oy

Pekka Hautala

Markus Niemi

Jukka Kiijärvi

Juha Alajoki

Jyrki Kajaste

Mika Helisten

Jari Kostamo

Juha Murtola

Wiliam Brace

Petri Kuosmanen

Petri Makkonen

Kimmo Siitari

Seppo Lauri Paalasmaa

Petri Erkki Michael Makkonen

Jukka Penttinen

William Brace

A fuel injector valve () of a piston engine, which comprises a fuel chamber () for the fuel to be injected, a valve needle () for guiding the fuel injection from the fuel chamber () into the cylinder () of the engine, a spring () for pressing the valve needle () towards the closed position, and a piezoelectric actuator () for guiding the valve needle (). Additionally, the injector valve () comprises a drawbar (), which is loosely coupled to the valve needle (), a second drawbar (), which is attached to the piezoelectric actuator () and loosely coupled to the drawbar (), and that the injector valve () comprises a second spring () fitted in connection with the drawbar () for pressing the valve needle () towards the closed position and a third spring () fitted in connection with the second drawbar () for pressing the valve needle () towards the closed position.

Fuel injector valve

A hydraulic actuator () comprising a body (), in which a control arm () and a lift means () provided with a piston surface () are arranged, which lift means is arranged to follow the reference movement of the control arm (), and an inlet port () and an outlet port () for hydraulic medium. The body () encloses a pressure chamber () delimited by the piston surface () of the lift means (), and the movement of the control arm () provides a flow connection between the inlet port () and the pressure chamber () in order to move the lift means (), and the movement of the control arm () in the opposite direction provides a flow connection between the pressure chamber () and the outlet port () in order to move the lift means () in the opposite direction.

Hydraulic actuator

A fuel injection arrangement for a piston engine, the arrangement comprising an injector nozzle () for injecting fuel into the combustion chamber () of the cylinder. A Theological actuator () is arranged in connection with the injector nozzle (), the actuator comprising a space () containing Theological fluid and an apparatus () by means of which the viscosity of the Theological fluid can be changed for controlling the fuel injection.

Injection arrangement for a piston engine

The present invention relates to a locking arrangement by means of which two parts can be locked to each other, such as locking a door to its frame construction. The locking arrangement comprises a first locking element fastened to the lock unit, a second locking element fastened to the counter part and an acting element being preferably a part of the lock unit. The first and second locking elements are gripping brackets, forming a hooked grip with each other when the lock unit and the counter part are against each other, when, for example, the door is locked in its opening. The gripping brackets are essentially in the direction of the movement of the door. The task of the acting element is to keep the gripping brackets in an overlapping position when the locking arrangement is locked. The position of the acting can be changed, and the current state of the locking arrangement depends on the position.

Locking arrangement

A planetary gear transmission with a steplessly adjustable transmission ratio where the gear transmission comprises a first and second sun gear ( ) arranged on a first and second operating shaft ( ), and first ( ) and second planetary gears ( ) connectable thereto, each of which sun gears is rigidly attached by a shaft ( ) to the first planetary gears ( ), so that the first and second planetary gears form planetary gear pairs (B ). The gear transmission includes only one planetary carrier ( ). By means of coupling means ( ), the whole rotary force or part thereof is taken out of the planetary gear and/or fed therein, either via said first or second operating shaft ( ), or via an alternative planetary carrier. By using at least one operation means ( ), the planetary carrier rotation velocity (&phgr;) is controlled to remain locked stationary or to be freely rotatable.

Planetary gear transmission with variable ratio

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Espoo, Finland

Pekka Hautala