Mitsubishi Electric Corporation

Nippon Carbureter Co.

Sanshin Kogyo Kabushiki Kaisha

Norikazu Ishikawa

Masahiko Takagi

Masanobu Baba

Akinori Kojima

Yukio Ishida

Masanori Fujisaki

To achieve a reduction in power consumption by allowing a plurality of air conditioners to communicate with each other and thereby leveling their air-conditioning capacities with no load variations involved by temperature variations. An air-conditioning apparatusmay include a plurality of air conditioners and a computing section for control, where each air conditioner includes an indoor unit and an outdoor unit that form a closed refrigeration cycle. The indoor units of the plurality of air conditioners are installed in an area to be air-conditioned. The computing section for control may allow the plurality of air conditioners to communicate with each other, thereby leveling their air-conditioning capacities based on air-conditioning load detected by each air conditioner.

Air-conditioning apparatus

Control units for three indoor units of air conditioners installed in a same indoor space are connected by a communication line. Each of the control units can grasp the detection information of the human detection sensor, preset temperature information of the remote controller, inlet temperature information of the inlet temperature sensor of all of the other air conditioners in the same space. On the basis of the above-mentioned information, each of the control units calculates an air-conditioning load of each of the air-conditioning target spaces and the air-conditioning load of an entire air-conditioning space on the basis of these air-conditioning target spaces in the same manner. A compressor is driven and controlled on the basis of a calculation result thereof to perform a power-saving operation of the entire air-conditioning space.

Power saving air-conditioning system

A fuel supply system for selectively increasing the fuel supply to an internal combustion engine suitable for use in outboard motors and the like in response to sensed operating conditions of the engine, such as engine start-up, engine acceleration, and engine knocking. A series of engine operating condition sensors, such as an engine temperature sensor, an engine throttle opening sensor, an engine crank angle sensor, and an engine knocking sensor, detects the occurrence of engine start-up, engine acceleration, or engine knocking and sends a signal to a micro-computer to operate an electromagnetic pump and electromagnetic control valve to supply an additional amount of fuel to the fuel supply passage of the engine.

Fuel supply system for selectively increasing the fuel supply to an

An apparatus for regulating fuel supply to a liquefied petroleum gas engine comprising a housing divided by a lower chamber passing through the fuel in liquid phase from a fuel supply to a vaporizer and an upper chamber connected to a carburetor of the engine passing through the fuel in gas phase from the vaporizer to the carburetor by a partition wall having a passage therein, the composition of the fuel being determined in temperature and vapor pressure of the fuel in liquid phase in the lower chamber, the flow of the fuel in gas phase from the passage in the partition wall to the upper chamber being controlled by valve means actuated in response to the temperature and the pressure of the fuel in liquid phase.

Growing community of inventors

Tokyo, Japan

Norikazu Ishikawa