摘要:
A vehicular automatic transmission (AT) hydraulic controller has an integrated valve. The integrated valve has a cylindrical cam shaft including convex and concave parts on the outer periphery thereof, and the integrated valve is connected to a motor for automatic control and a connecting part which is interlocked with an external gearshift operated by a driver. Hydraulic control of the integrated valve can be performed in two different ways, i.e., automatic control and manual control, and even if automatic control malfunctions due to an error, manual control can maintain the control of the AT and avoid any inconvenience. The structure of this integrated valve provides a high degree of design freedom and can implement a wide variety of AT functions. Accordingly, a light, compact and reliable AT equipped with both an automatic control mechanism and a manual control mechanism can be provided.
摘要:
A pump apparatus has a regenerative pump and a motor for driving the regenerative pump. A substantially annular flow passage is formed in the pump housing of the regenerative pump and communicated with a discharge port and a suction port. An impeller is rotatably housed in the pump housing. A plurality of radial vane grooves are formed circumferentially spaced in the outer peripheral portion of each surface of the impeller. A recess is formed in the portion of one of side surfaces of the flow passage aligned axially with the discharge port formed in the other side face of the flow passage.
摘要:
A regenerative pump apparatus has a housing and a substantially disc-shaped impeller rotatably housed by the housing. Circumferential rows of radial vane grooves are formed in the outer peripheral portions of both side surfaces of the impeller. Each circumferential row includes first vane grooves of an axial depth equal to or greater than a half of the impeller thickness and second vane grooves of an axial depth smaller than a half of the impeller thickness. The first and second vane grooves are arranged alternatingly in the circumferential direction in each row, such that the first vane grooves and the second vane grooves in one row are axially aligned with the second vane grooves and the first vane grooves in the other row.
摘要:
In a safety inflatable bag apparatus for protecting occupants of a vehicle, when collision of a vehicle occurs, a blocking cock of a high pressure gas container is destroyed by explosion of ignitors, as a result of which high pressure gas is released from the container into the inflatable bag to inflate it for restraining the occupant. By-product fragments or pieces produced upon the explosion of the ignitors are collected in a collecting chamber disposed at a bent portion of a duct connecting the high pressure gas container and the inflatable bag, thereby to eliminate the need for a conventional filter or prevent the filter, if used, from being clogged.
摘要:
An vehicular air-conditioner includes a refrigeration cycle including a compressor, an outside condenser, an interior condenser, an evaporator, an expansion valve, a bypass-path bypassing the outside condenser, a cooling path that circulates refrigerant through the outside condenser, a heating path that circulates refrigerant through the bypass-path, and a changeover valve that changes a refrigerant circulation path to one of the cooling and heating paths, a high-pressure detector that detects a high-pressure-side pressure of the refrigeration cycle, and a controller. The controller controls, upon a changeover command to a heating mode during a cooling mode, the changeover valve to change the refrigerant circulation path from the cooling path to the heating path after the high-pressure-side pressure detected by the high-pressure detector becomes equal-to/lower-than a target pressure. According to the air-conditioner, the refrigerant amount in the heating path can be optimized without making the refrigeration cycle complicated and increasing its cost.
摘要:
Provided is an air conditioner for a vehicle which can prevent the controls over cooling cycle and heating cycle from interfering with each other and thereby prevent hunting between the cooling and heating cycles even when a compressor is operated to perform the heating cycle in an overlapping temperature range where air cooling and air heating are both required. An air conditioner (4) for a vehicle includes a refrigerant circulation circuit (9b) for air heating to circulate a refrigerant, and a control unit (29) to selectively perform a normal air conditioning mode in which a normal cooling operation is feasible by circulating the refrigerant through a refrigerant circulation circuit (9a) for air cooling and an auxiliary heating mode in which an auxiliary heating operation is performed by circulating the refrigerant through the refrigerant circulating circuit (9b) for air heating.
摘要:
Provided is a vehicle air conditioning device with a simple structure which can quickly raise the temperature of engine cooling water used for heating the air in a vehicle cabin in an engine start period in a low ambient temperature. The vehicle air conditioning device comprises the following elements integrally connected with each other: a first water heat exchanger (26) provided in the middle of a passage through which an engine cooling water flows from the water jacket of an engine (3) to a heater core (8a), a second water heat exchanger (27) provided in the middle of a passage through which the engine cooling water flows from the heater core (8a) to the water jacket of the engine (3), and a first external heat exchanger (18) for refrigerant condensation provided between the first and second water heat exchangers (26, 27). In the engine start period in a low ambient temperature, the engine cooling water flowing from the water jacket to the heater core (8a) is heated by heat released from the first external heat exchanger (18) to rise in temperature.
摘要:
A rotary piston vacuum pump has a rotor eccentrically disposed in a cylinder and mounted therein for revolution in rolling contact with the cylindrical inner peripheral surface of the cylinder so that a crescent-shaped space is defined between the rotor and the cylinder and moved around the axis of the cylinder. A vane is radially reciprocally mounted in a vane chamber having an inner end open to the cylindrical inner peripheral surface of the cylinder. The vane has an inner end in sliding contact with the outer peripheral surface of the rotor to divide the crescent-shaped space into a suction chamber in communication with a suction port and a discharge port to be communicated with a discharge port having an inner end open in a wall of an outer part of the vane chamber. The rate of communication between the discharge port and the discharge chamber through the outer vane chamber part is varied by the reciprocal movement of the vane so that the communication is interrupted at least when the point of contact between the rotor and the cylinder inner peripheral surface reaches the vane.
摘要:
Wheel cylinders supplied with oil pressure from a master cylinder are respectively provided in brake mechanism provided in wheels of a vehicle. The wheel cylinder has a brake piston provided to form a first fluid chamber to supply oil pressure from the master cylinder, and a brake piston driven by the oil pressure of the first fluid chamber. The wheel cylinder has a piston mechanism formed by laminating thin plate shaped piezoelectric elements, and the piston mechanism is controlled to be expanded or contracted by controlling the voltage applied to the piezoelectric elements to vary the volume of the first fluid chamber. Cut-off valves are provided in passages for supplying the oil pressure from the master cylinder to the wheel cylinders, a check valve for allowing only the work oil to flow from the master cylinder to the wheel cylinder in parallel with the cut-off valve to control to expand the piston in the state the oil pressure is generated from the master cylinder and the cut-off valve is closed to control to further strengthen the oil pressure in the first fluid chamber.
摘要:
An antiskid control device including a main line system for a usual braking operation and a subline system for an antiskid control, in which the flow rate of the subline system is smaller than the flow rate of the mainline system. The main piping system is provided with a cut-off valve which opens at a usual braking operation and closes at an antiskid control. The subline system is provided with a first control valve for opening the subline system and a second control valve for opening or closing the subline system at an antiskid control. The second control valve opens the subline system to supply a small quantity of brake oil to the wheel cylinder, and closes the subline system to release the brake oil in the wheel cylinder to the outside thereof.