Abb Schweiz Ag

Abb Research Ltd.

Abb Oy

Arne Trangard

Ivan Lundberg

Daniel Sirkett

Jeroen Derkx

Peter Fransson

David Karlen

Veli-Pekka Peljo

Kimmo Kokkila

Winston Garcia-Gabin

Bin Liu

Harri Lipponen

Mohammadali Honarpardaz

Matti Kivioja

Kateryna Mishchenko

Stefan Lunderius

Andre Jaber

Timo Heine

Wei Ji

Jari Kivelä

A drive arrangement for a cycloidal marine propulsion unit including at least two electrical blade motors each associated to a respective blade for pivoting thereof, each blade motor being operationally coupled to a respective blade drive for actuating the corresponding blade motor. The at least two blade drives each include a respective blade drive power converter operationally coupled to a first common intermediate DC-link, wherein the at least two blade drives being configured to feed power from the first common intermediate DC-link to their respective blade motors, and to feed regenerative power from their respective blade motors to the first common intermediate DC-link. The disclosure also concerns a marine propulsion unit having such a drive arrangement, and a method of operating such a drive arrangement.

Drive arrangement for a cycloidal marine propulsion unit, a cycloidal marine propulsion unit and a method of operating such a drive arrangement

An on-off pilot stage valve arrangement for controlling at least one main stage valve. The on-off pilot stage valve arrangement includes a first pilot valve discretely operable between two states, an on and an off state, the first pilot valve having an input at which there is a first pressure and an output connected to the main stage valve, a second pilot valve discretely operable between two states, an on and an off state, the second pilot stage valve having an input at which there is a second pressure and an output connected to the main stage valve. Both the valves are configured to be set in one of the two states in case the arrangement loses power.

Discrete pilot stage valve arrangement with fail freeze mode

An electrical circuit switch including: a first movable element configured for being movable by a force applied to the first movable element, the force having a direction parallel to a first axis; and a second movable element including a movable contact and being configured for, by means of the force, moving the movable contact in parallel to a second axis between an open and a closed position, corresponding to the switch opening or closing an electrical circuit. The first axis forms an angle to the second axis and the first movable element and the second movable element are pivotally arranged to each other in a first joint.

Electrical circuit switch with variable gear ratio

A component feeder including a lift for elevating a selection of components from a bulk storage, and a pick surface adjacent to the lift for receiving the selection of components. A spreader gives the selection of components a push for spreading the selection of components from the lift on the pick surface. The combination of a vertical lift and a separate pick surface adjacent to the lift enables the bulk storage being positioned right below the pick surface. The area of the pick surface is large in relation to the total footprint of the component feeder.

Method and system for feeding components

Growing community of inventors

Vasteras, Sweden

Arne Trangard