Abstract: A liquid outlet pipe extended from a lower end of a liquid storage reservoir 420 is communicated with a section in the proximity of a lower portion of a refrigerant liquid dispersing pipe 421. A plurality of liquid outlet holes 426 are provided on an upper surface of the refrigerant liquid dispersing pipe 421. Diameters of the liquid outlet holes 426 are differently determined depending on a distance between a communicated section of the liquid dispersing pipe 421 and the liquid storage reservoir 420, in order to equalize an amount of refrigerant liquid flowing from the outlet holes 126. When the liquid storage reservoir 420 is filled with the refrigerant liquid, the refrigerant liquid flows upward within the liquid dispersing pipe 421 so as to inject the refrigerant liquid in accordance with a liquid head pressure.

Abstract: An orifice is disposed in an intake tube for developing a pressure difference across the orifice, i.e., portions of the intake tube which are positioned upstream and downstream of the orifice. An upstream connection pipe and a downstream connection pipe have respective ends connected to the intake tube and opening into the intake tube respectively upstream and downstream of the orifice, and respective opposite ends connected to a pressure sensor. The pressure sensor detects the pressure difference between the pressure of combustion air in the upstream connection pipe and the pressure of combustion air in the downstream connection pipe.

Abstract: An air-conditioning system has an air-conditioning unit and a controller which includes a timer setting unit for establishing data including at least one time zone in the time of one day and an operation status in the time zone for the air-conditioning unit. The controller also has a memory for storing the data established by the timer setting means, and operation control unit for controlling operation of the air-conditioning unit according to the data stored by the memory. The timer setting unit includes a first setting unit for establishing the data altogether for all days of the week, a second setting unit for establishing the data for a plurality of groups divided from the days of the week, and a third setting unit for establishing the data individually for the days of the week. The first, second, and third setting units are selected by the timer setting unit to establish the data. Each time new data is established by either one of the first, second, and third setting units.

Abstract: A space heater for heating air from within a room with a heat exchanger connected to a burner and discharging heated air into the room has a room temperature sensor for detecting a room temperature and a controller for controlling the burner with a freeze prevention temperature set to prevent indoor facilities from being frozen. When the detected room temperature drops to or below the freeze prevention temperature, the controller operates the burner and controls the burner with a lower limit for an amount of heat in the burner with which no moisture condensation occurs in the heat exchanger.

Abstract: In a cross flow type burner apparatus, a burner is provided to which a gaseous fuel and air are supplied by a blower. An air reduction member is provided to reduce an amount of air supplied to specified flame holes of the burner wherein the reduced amount of air is less than the amount of air supplied to the other flame holes. A temperature sensor is provided to detect the burning condition of flames built up on the specified flame holes. A safety member is activated depending on an output generated from the temperature sensor.

Abstract: In a method of making a gas burner device, there are steps of symmetrically blanking a first metal plate and deforming it so as to form a first intermediate blank having a bulged portion, bending the first intermediate blank at a symmetrical center thereof to provide a first burner flow path with the bulged portion, and joining end portions of the intermediate blank to form a first burner, blanking a second metal plate and symmetrically deforming it so as to form a second intermediate blank having a bulged portion, bending the second intermediate blank at a symmetrical center thereof to provide a cover plate; and encasing at least an upper end of the first burner with the cover plate to form a slit-like sleeve first hole between the first burner and the cover plate, and forming a second burner flow path communication with a second burner suction hole and the slit-like sleeve fire hole so as to provide a second burner.

Abstract: In a gas burner device having a first burner having a first fire hole formed therein and a second burner having a second fire hole arranged therein, the fire hole is disposed around the first fire hole of a first burner to straddle the first fire hole. The second burner has a common suction hole through which a fuel gas and primary air are supplied to the second fire hole independent of fuel gas and primary air supplied to the first burner.

Abstract: A heat exchanger which can prevent the increase of an internal resistance by baffle plates, can make the gradient of a heat exchange rate between an inlet side and outlet side more gradual, and can make uniform a temperature distribution of a fluid flowing outside.

Abstract: In a burner plate having a multitude of fire holes each piercing through its thickness so as to effect a primary burning thereon with a high heat capacity, it is adapted to continuously differentiate a time period required for an air-fuel mixture gas to pass through the fire holes of the burner plate from a central portion toward an outer periphery of the burner plate.

Abstract: A heater control circuit is provided to control the heating condition of a cooking oven by means of a triac. In the heater control circuit, an electrical heater is incorporated. The heater further has a switch which is electrically connected in series with the heater so as to actuate and deactuate the heater in combination with on-off operation of the switch. A control relay is electrically connected in series with the triac and the heater to be actuated and deactuated in association with on-off operation of the switch so as to break an electrically conductive path through the triac.

Abstract: There is disclosed an oven comprising at least one halogen lamp (4a) provided with a far infrared coating and at least one halogen lamp (4b) without a far infrared coating, both halogen lamps (4a, 4b) being disposed in a grill chamber having on the front a door which can be opened and closed.

Abstract: In an infrared stove apparatus, there is provided a stove body having a radiation window at the front and upper portions of the stove body. A frame is placed within the stove, and one open end of the frame faces to the front portion of the stove body so as to serve as a radiation opening, the other open end of the frame having a porous burner plate through which a mixture of fuel gas and air is to be released. An exhaust opening is provided at the upper lateral side of the frame to pass exhaust gas released through the porous burner plate when the mixture of fuel gas and air is ignited at the time of operation. A metallic net of a suitable mesh screen is provided within the exhaust opening to increase fluid-resistance of the exhaust gas flowing out through the exhaust opening so as to keep a uniform velocity distribution of the exhaust gas while restraining outside air from entering into the frame through the radiation opening leading to the exhaust opening.

Abstract: There is disclosed an apparatus for fixing a halogen lamp (1) characterized in that a spacer (11) of fluorocarbon resin is mounted on an insulator portion of the halogen lamp (1) and that the halogen lamp (1) is fixed to a metallic fixing member (10) through the spacer (11).

Abstract: In an oven having a plurality of heat sources for cooking by heating an object of cooking inside an oven chamber, the capacities of said heat sources are arranged to be capable of independent control. The operating time of the heat sources is arranged to be set by a timer, wherein heat sources not operated or operated at a reduced capacity are operated substantially at their full capacities for a predetermined period of time after a cooking time set by the timer has elapsed.

Abstract: An improved ceramic burner plate for gas combustion which is made from a composition comprising about 30-40 weight percent of a clay, about 3-8 weight percent of talc, about 25-40 weight percent of a pore-producing substance and about 14-36 weight percent of mullite. The ceramic burner plates of the invention are characterized by excellent fire resistance and long service life.

Abstract: A CO sensor is mounted on the heat exchanger of a gas water heater (or other combustion unit) and is connected in circuit with a detecting unit mounted separately from the heater. The detecting unit generates a control voltage in opposition to a reference voltage on a solenoid. The solenoid controls a valve in a fuel supply passage to a burner (or burners) in the heater, thereby shutting off the burners when the CO concentration reaches a predetermined value. A timing circuit may be added to cut off the burners whenever a lesser CO concentration continues for a predetermined time period.