Abstract: The invention relates to a safety arrangement of an elevator and a method for implementing safety spaces in an elevator shaft. The elevator has an elevator control system, an elevator motor, a power supply circuit of the elevator motor, and at least one mechanical stopping appliance for preventing movement of the elevator car in the elevator shaft. In the method according to the invention information is read with the control unit from the sensors that measure the position of the landing door of the elevator and possibly information is read from the sensors that measure the position of the door of the elevator car. If it is detected that more landing doors than the door of the elevator car are open, the control unit is switched to the person in the elevator shaft mode and information about the person in the elevator shaft mode is sent with the control unit to the elevator control system.

Abstract: In a fuel injection type multicylinder engine, both the mounting of a camshaft angle sensor, which is operable in response to angular movement of a valve driving camshaft to detect a timing of injection of fuel injected from a fuel injection valve, on the engine and maintenance of the resulting engine are improved. A camshaft angle sensor S is operable in response to an angular movement of an exhaust-side valve driving camshaft and is mounted on the engine E at one side surface exposed from the lower portion of a frame F. Mounting of a cam pulsar of the angle sensor S from the side of the frame F and the maintenance is possible without being obstructed by the frame F.