Kawasaki Jukogyo Kabushiki Kaisha

Sumitomo Gomu Kogyo Kabushiki Kaisha

Takahiro Matsumura

Chiyoharu Tonda

Kazuo Tsutsumi

Kazuya Nishimura

Yoshiharu Inui

Eiji Yoshiyama

Fumiya Goto

Shingo Okamura

In a regenerative braking emergency stop system, a substation includes: a rectifier transformer configured to transform AC power received from outside; a rectifier configured to convert the transformed AC power into DC power; and a switch disposed on an electrical path between the rectifier and a power-feed rail and configured to be in a closed state or an opened state; a simulated ripple transmitter configured to transmit a simulated ripple, the simulated ripple being an AC signal having a predetermined frequency; a superimposing circuit connected to the power-feed rail in parallel with the rectifier and configured to superimpose the simulated ripple transmitted from the simulated ripple transmitter on DC power outputted from the rectifier; and a relay device configured to allow the simulated ripple transmitter to transmit the simulated ripple when the rectifier is receiving power from outside and the switch is in a closed state.

Regenerative braking emergency stop system

A power conditioner for a feeding system which stabilizes a load of active power is provided. A power conditioner for a feeding system comprises a first AC-DC and DC-AC converter for performing conversion between AC power and DC power; and a nickel-metal hydride battery disposed between and connected to a high-voltage cable at DC side of the first AC-DC and DC-AC converter and a low-voltage cable at the DC side of the first AC-DC and DC-AC converter.

Power conditioner for feeding system

To present an electric railway power-supply system not requiring vast area for installation, excellent in rapid charge-discharge characteristic, and low in manufacturing cost. At a substationfor electric railway having a transformerfor receiving power from an alternating-current power line, a rectifying deviceconnected to the transformer, and a feeder lineconnected to the rectifying device, a nickel hydrogen batteryis provided as a direct-current supply facility, and the nickel hydrogen batteryis directly coupled to the feeder line

Electric railway power-supply system

The invention relates to a clamping device including a pair of recessed semicylindrical resilient gripping bodies each embedded with a resilient member of harder material than the gripping bodies. The cross section of each resilient member is shaped like a semicircle having flanges at its both side edges, respectively. The diameter of the semicircle is the greatest at the midpoint of a center axis of the reinforcing member and becomes smaller toward the ends thereof. A tubular member is securely clamped inside the recesses and between these bone members by connecting means.

Growing community of inventors

Kobe, Japan

Takahiro Matsumura