Shell USA, Inc.

Shell Internationale Research Maatschappij, B.v.

Alfred Arnold Kruijer

Guy Lode Magda Maria Verbist

Folkert Hettinga

Willem George Sied Van Rijs

Peter Van Der Wagt

Willem Van Rijs

This invention provides a thermal energy storage device () comprising a powder bed (), at least two electrodes (), and at least one heat transfer tube (). The powder bed () has an electrical resistivity in a range of 500-50,000 Qm. The at least two electrodes () are embedded in the powder bed () and arranged to heat the powder bed () by providing a voltage between the electrodes (). The at least one heat transfer tube () is arranged to contain a heat transfer fluid and has an inlet () and an outlet () connectable to a thermal energy consumer (). The heat transfer tube () and the powder bed () are thermally coupled via an electrically insulating material.

Energy storage device and method of heating a heat transfer fluid

A safety device for detachably locking the output member of a linear drive has a coupling rod that can be coupled with the output element of the linear drive. A blocking unit is linearly movably penetrated by the coupling rod that is relatively movable with respect to the housing between a locking position blocking the stroke of the coupling rod and a release position enabling the linear movement of the coupling rod. A spring device prestresses the blocking unit in the blocking position and a locking device locks the blocking unit in the release position. The locking device has locking rolling elements in the housing and a support sleeve that is linearly movably penetrated by the coupling rod. When energized, an electromagnet device holds the support sleeve in the support position against the recoil force of at least one trigger spring of a trigger spring device.

Safety device

Growing community of inventors

The Hague, Netherlands

Alfred Arnold Kruijer