42results about How to "Reduce line pressure" patented technology

An engine stop and start control system for securing a normal line pressure in a hydraulic circuit of the transmission. The system has an engine as a power source for driving the vehicle; a transmission; a mechanical oil pump, operated by the power produced by the engine, for supplying oil pressure to the transmission; an automatic engine stopping and starting section for automatically stopping the engine under predetermined stopping conditions and automatically starting the engine under predetermined starting conditions; and an electric oil pump operated when the predetermined stopping conditions are satisfied, so as to supply the oil pressure to the transmission. The automatic engine stopping and starting section has a control section for prohibiting the automatic engine stop when the line pressure in a hydraulic circuit for supplying oil pressure to the transmission is equal to or lower than a predetermined value while the engine is operated.

There is provided a control device for a vehicular power transmitting apparatus of equipped with a differential portion is provided for suppressing a durability decrease of the differential portion or component parts related thereto upon preventing a rotary element of the differential portion from reaching a high-speed rotation. Rotation-stop determining means 72 makes a query as to whether the first rotary element RE1 is lowered in a rotation speed to be stopped during an engine drive mode. If the answer is YES and differential-portion rotation speed determining means 74 makes a positive determination, then engaging-element control-executing means 78 executes engaging element control. This allows a third rotary element RE3 of the differential portion 11, connected to drive wheels 38 via an engaging element of an automatic shifting portion 20, to approach a state available to freewheel. This prevents a second rotary element RE2 and a first electric motor M1 from reaching high-speed rotations caused by a decrease in rotation speed of the first rotary element RE1 in a stop direction and a differential action of the differential portion 11. This enables the prevention of a durability decrease of a power distributing mechanism 16 and the first electric motor M1.

Safety as well as the minimum driving performance is secured by preventing abrupt down-shifting if a line pressure valve or a primary pressure control valve fails. A line pressure path connected to an oil pump is connected with a line pressure control valve. A first primary pressure path branched from the line pressure path is connected with a hydraulic fluid chamber through a fail-safe valve, and a secondary pressure path branched from the line pressure path is connected to a hydraulic fluid chamber. The line pressure control valve is connected with a second primary pressure path in communication with a hydraulic fluid chamber, and this secondary primary pressure path is provided with a primary pressure control valve and a limiter valve. When the line pressure control valve and the primary pressure control valve fail and excess line pressure or primary pressure is output, the pressure in the hydraulic fluid chamber is reduced by the fail-safe valve, so that the pressure in the hydraulic fluid chamber is reduced by the limiter valve.

In control apparatus and method for an automotive vehicle, the vehicle having a continuously variable transmission associated with a vehicular engine and including a belt that transmits a revolution of a primary pulley to a secondary pulley that is enabled to make a gear shift by modifying a pulley ratio between the primary and secondary pulleys with a hydraulic, a determination is made as to whether a belt slip between at least one of the primary and the secondary pulleys occurs and an output section outputs a signal to command an engine control unit to increase an engine speed by a predetermined engine speed when the belt slip is determined to occur.

A coast stop vehicle includes a variator which continuously changes a speed ratio by changing a winding diameter of a belt mounted on pulleys, a sub-transmission mechanism connected in series with the variator and shifting discrete gear positions by changing engaged states of a plurality of frictional engagement elements, and a coast stop unit which stops the rotation of the drive power source and releases the engaged frictional engagement element when the coast stop condition holds during travel. The coast stop unit includes a coast stop prohibiting unit which prohibits the coast stop regardless of the coast stop condition when it is predicted at the time of determining whether or not the coast stop condition holds that a belt tightening force of the pulley falls below an engaging force of the frictional engagement element in the engaged state by the execution of the coast stop.

The invention discloses a wedge-shaped self-power-increasing disc brake which comprises a brake caliper body, a wedge-shaped brake block, friction linings, a fixed brake block, 4-6 rollers, a seal ring, a wheel cylinder piston, a wheel cylinder, two baffle plates and a brake caliper guide frame, wherein the upper end of the brake caliper body and an upper brake caliper opening in the brake caliper guide frame are assembled; the inner side surfaces of the brake caliper openings in the brake caliper body are connected with the 4-6 rollers in a contacted mode; the 4-6 rollers and the large right-angle side surface of the wedge-shaped brake block positioned below are connected in a contacted mode; the friction lining is pasted on the beveled edge surface of the wedge-shaped brake block; and the small right-angle side surface of the wedge-shaped brake block is connected with the extending end of the wheel cylinder piston; the seal ring is installed between the wheel cylinder piston and thewheel cylinder; the fixed brake block is fixed on a lower brake caliper opening in the brake caliper guide frame; the second friction lining is pasted on the fixed brake block; the two baffle plates are installed on two end surfaces of the brake caliper openings in the brake caliper body through a bolt; and inner end surfaces of the two baffle plates and two end surfaces of the wedge-shaped brakeblock are in clearance fit.

A product selection and grouping system for the metering, selection, grouping and accumulation of varying size and / or configuration products into packs for packing in a substantially continuous motion operation is provided. The product selection and grouping system includes a metering station that receives the products in a substantially continuous line of flow from a product infeed, and meters the line of products to selectively form a series of spaces therebetween. The metered products are formed and fed to a product grouping conveyor in groups of sets a selected number of products, and are engaged by laning flights of a laning unit, which transfer the product groups to selected ones of a series of lanes defined along the product grouping conveyor. The groups of products are accumulated for transfer to a downstream packing machine.

A paint circulating system back pressure regulator comprises a flow passage for paint, at least part of which is disposed between a fixed structure and a moveable surface which is moveable to vary the width of the flow passage so as to regulate a pressure of paint upstream of the regulator. The regulator is also provided with a chamber having an opening for communicating with a supply of a pressurized fluid for controlling operation of the regulator.

A method for dimensioning a component of a braking system; the braking system having at least two brake-circuit partial circuits; each brake-circuit partial circuit having at least one pump element for building up a brake-circuit pressure and / or for returning brake-circuit fluid in an ABS case, the pump elements of the at least two brake-circuit partial circuits being operable using a motor element; and the at least two brake-circuit partial circuits being separable using a separating element, so that different brake-circuit pressures may be created in the at least two brake-circuit partial circuits.

A product selection and grouping system for the metering, selection, grouping and accumulation of varying size and / or configuration products into packs for packing in a substantially continuous motion operation is provided. The product selection and grouping system includes a metering station that receives the products in a substantially continuous line of flow from a product infeed, and meters the line of products to selectively form a series of spaces therebetween. The metered products are formed and fed to a product grouping conveyor in groups of sets a selected number of products, and are engaged by laning flights of a laning unit, which transfer the product groups to selected ones of a series of lanes defined along the product grouping conveyor. The groups of products are accumulated for transfer to a downstream packing machine.

In cleaning devices, process cartridges and image forming devices, a cleaning structure with low linear pressure and high surface pressure can be obtained by specifying the material, shape and support structure of the cleaning blade. Press the front end corners of the elastic cleaning blade (38) supported by the so-called sheet holder, that is, the supporting member (37), on the roller-shaped and belt-shaped image carrier (10), and remove the residue remaining on the image carrier after image transfer. body toner. In such a cleaning device (16), the angle (θ) forming the front end corner line portion (36) of the cleaning blade is formed as an obtuse angle, and the front end corner line portion is formed at a surface pressure greater than or equal to 2.0 g / mm2. Press on the image carrier. The so-called surface pressure refers to the value obtained by dividing the total load applied to the cleaning blade by the contact area of ​​the cleaning blade with respect to the member to be cleaned.

Various embodiments of methods, apparatus and systems that diagnose and / or detect faults of an electro-hydraulic control system for a transmission are presented. Some embodiments, adjust a main line pressure of the electro-hydraulic control system and detect faults based upon changes in a pressure switch resulting from such adjustments of the main line pressure. The pressure switch may be incorporated into a control main valve or a clutch trim valve of the electro-hydraulic control system.

The invention provides a method for enriching diluents with butane so as not to violate pre-defined limits for liquid hydrocarbon fuels with respect to density, volatility and low density hydrocarbon content.

The invention provides a method for enriching diluents with butane so as not to violate pre-defined limits for liquid hydrocarbon fuels with respect to density, volatility and low density hydrocarbon content.

A low linear pressure and high surface pressure cleaning structure by specifying the material, shape and support structure of a cleaning blade in a cleaning device, a process cartridge and an image forming apparatus is obtained. A tip portion of an elastic cleaning blade 38 supported by a support member 37 which is a so-called blade holder is pressed against a drum-shaped or belt-like image bearing member 10 to remove a residual toner remaining on the image bearing member after image transfer. In such a cleaning device 16, an angle [theta] forming a front edge portion 36 of the cleaning blade is made obtuse and the front edge portion is pressed against the image bearing member at a surface pressure of 2.0g / mm<2> or larger. The surface pressure is a value given by dividing total load applied on the cleaning blade by a contact area of the cleaning blade to the image bearing member.

A paint circulating system back pressure regulator comprises a flow passage for paint, at least part of which is disposed between a fixed structure and a moveable surface which is moveable to vary the width of the flow passage so as to regulate a pressure of paint upstream of the regulator. The regulator is also provided with a chamber having an opening for communicating with a supply of a pressurised fluid for controlling operation of the regulator.

A hydraulic pressure control circuit of a torque converter includes a torque converter control valve for controlling a line pressure supplied from a line regulator valve stably controlling a hydraulic pressure supplied from a hydraulic pump to be directly supplied to a fluid chamber inside a torque converter case as an operation hydraulic pressure, a reducing valve for stably controlling the hydraulic pressure, a torque converter control solenoid valve for controlling the hydraulic pressure supplied from the line regulator valve to be supplied to an engage hydraulic chamber of the lock-up clutch, and a switch valve for supplying the hydraulic pressure supplied from the reducing valve to a releasing hydraulic chamber of the lock-up clutch or exhausting the hydraulic pressure of the releasing hydraulic chamber of the lock-up clutch while being controlled by a control pressure of the torque converter control solenoid valve.

A hydraulic control device controls hydraulic pressure supplied to a continuously variable transmission. The hydraulic control device includes a pressure regulating valve, a solenoid valve configured to control the pilot pressure, line pressure control means, and hydraulic control means. The pressure regulating valve includes an input port to which line pressure is input, an output port configured to supply an oil chamber of a second pulley with a second pulley pressure, a drain port configured to discharge the second pulley pressure from the oil chamber, and a spool moving according to pilot pressure to regulate the second pulley pressure. The line pressure control means is configured to control the line pressure on the basis of the second pulley pressure and first pulley pressure of first pulley. The hydraulic control means is configured to temporarily change the pilot pressure from set pressure to configure the line pressure identical to the second pulley pressure.

Safety as well as the minimum driving performance is secured by preventing abrupt down-shifting if a line pressure valve or a primary pressure control valve fails. A line pressure path connected to an oil pump is connected with a line pressure control valve. A first primary pressure path branched from the line pressure path is connected with a hydraulic fluid chamber through a fail-safe valve, and a secondary pressure path branched from the line pressure path is connected to a hydraulic fluid chamber. The line pressure control valve is connected with a second primary pressure path in communication with a hydraulic fluid chamber, and this secondary primary pressure path is provided with a primary pressure control valve and a limiter valve. When the line pressure control valve and the primary pressure control valve fail and excess line pressure or primary pressure is output, the pressure in the hydraulic fluid chamber is reduced by the fail-safe valve, so that the pressure in the hydraulic fluid chamber is reduced by the limiter valve.

An automatic transmission line pressure regulator includes a first body for installation in a valve bore distant from a line pressure valve and having a threaded bore passing therethrough, a threaded adjuster axially engaged in the threaded bore and rotationally adjustable with respect to the first body, a second body for installation in the valve bore and engagement with the threaded adjuster and a spring for installation between and engagement with the second body and the line pressure valve. Rotation of the threaded adjuster with respect to the first body alters an axial position of the adjuster, the second body and a first end of the spring, thereby altering a pre-load on the spring to alter a resistive force against movement of the line pressure valve caused by line pressure, and thusly, regulates line pressure.

A hydraulic control device includes a lock-up control valve that regulates a line pressure to generate a control pressure, and a lock-up relay valve that switches between paths through which a hydraulic pressure is supplied to and discharged from a torque converter. The lock-up relay valve is formed to be capable of switching between a path that connects between a control pressure oil passage to which the control pressure is output and a lock-up oil passage communicated with a lock-up oil chamber and that connects between a control pressure oil passage to which the control pressure is output and a circulation input oil passage communicated with a converter oil chamber, and a path that blocks connection between the control pressure oil passage and the lock-up oil passage and that blocks connection between the control pressure oil passage and the circulation input oil passage.

Rotation-stop determining portion queries as to whether the first rotary element is lowered in a rotation speed to be stopped during an engine drive mode. If the answer is YES and differential-portion rotation speed determining portion makes a positive determination, then engaging-element control-executing portion executes engaging element control. This allows a third rotary element of the differential portion, connected to drive wheels via an engaging element of an automatic shifting portion, to approach a state available to freewheel. This prevents a second rotary element and a first electric motor from reaching high-speed rotations caused by a decrease in rotation speed of the first rotary element in a stop direction and a differential action of the differential portion. This enables the prevention of a durability decrease of a power distributing mechanism and the first electric motor.

The invention provides a method for enriching diluents with butane so as not to violate pre-defined limits for liquid hydrocarbon fuels with respect to density, volatility and low density hydrocarbon content.

A coast stop vehicle includes a variator which continuously changes a speed ratio by changing a winding diameter of a belt mounted on pulleys, a sub-transmission mechanism connected in series with the variator and shifting discrete gear positions by changing engaged states of a plurality of frictional engagement elements, and a coast stop unit which stops the rotation of the drive power source and releases the engaged frictional engagement element when the coast stop condition holds during travel. The coast stop unit includes a coast stop prohibiting unit which prohibits the coast stop regardless of the coast stop condition when it is predicted at the time of determining whether or not the coast stop condition holds that a belt tightening force of the pulley falls below an engaging force of the frictional engagement element in the engaged state by the execution of the coast stop.

The invention provides a running brake system and a vehicle. A rear brake loop in the running brake system comprises a second cavity of a mater pump assembly, a central brake assembly, a left differential lock assembly and a right differential lock assembly. When a pedal plate of a brake pedal plate assembly is treaded, the left differential lock assembly and the right differential lock assembly enable a rear axle differential mechanism to lose the differential effect under the hydraulic effect. The running brake system solves the problems that an existing running brake system is poor in heat-fading resistance and reliability, the phenomenon that when the vehicle is braked, due to affected by poor part consistency, large differences exist in brake torque of a left wheel and a right wheel of a rear axle is avoided, and the brake stability is improved.

The invention relates to a method for preparing multi-layer reconstituted tobacco leaves. The method comprises the steps that tobacco leaves and tobacco stem mixed slurry are concentrated through a bottom layer flow sending system, then feeding-to-mesh and forming are performed through a bottom layer flow slurry box, a bottom layer mesh part gravity dewatering box and a vacuum dewatering box are used for surface water removal, the tobacco leaves and the tobacco stem mixed slurry are concentrated through a top layer flow sending system, then feeding-to-mesh and forming are performed through a top layer flow slurry box, the surface water is removed through the bottom net gravity dewatering tank and the vacuum dewatering box, tobacco powder is evenly spread on a leaf base formed on a bottom layer, and then a top layer leaf base is composited with the bottom layer leaf base and shaped through a press part. The method can obtain the leaf base of a sandwich type novel electronic cigarette, and the method can make full use of the tobacco powder, and can make the reconstituted tobacco leaf suction feeling closer to natural tobacco leaves.

The invention relates to a cold supply system. The cold supply system comprises a sharing runner, an auxiliary running branch and at least one main running branch connected with the auxiliary running branch in parallel, wherein the sharing runner comprises a compressor and a condenser connected with the compressor in series; the auxiliary running branch comprises a first electronic expansion valve, an auxiliary evaporator and a first electromagnetic valve which are sequentially connected in series, the first electronic expansion valve is communicated with the condenser, and the first electromagnetic valve is communicated with an air inlet of the compressor; and the main running branch comprises a second electromagnetic valve, a second electronic expansion valve, a main evaporation pipe, a low pressure sensor and a third electromagnetic valve which are sequentially connected in series, the second electromagnetic valve is communicated with a liquid outlet of the condenser, and the third electromagnetic valve is communicated with an air inlet of the compressor. By means of the cold supply system, effective cooling of a heating device can be achieved, the pipe pressure on the low pressure side of the main running branch is effectively reduced, and the cold supply system is protected against damage. The invention further discloses a control method of the above cold supply system.