5 results about "Variable displacement" patented technology

A method for operating an engine having at least one cylinder that may be deactivated and a fuel system operating with an alcohol fuel blend, comprising of adjusting a range of operating parameters in which the at least one cylinder is deactivated, where said range is adjusted as the alcohol blend of the fuel varies.

A compressor output calculation unit having a variable displacement compressor, a condenser, a pressure reducing mechanism and an evaporator, wherein a compressor torque or power is calculated based on a detected or estimated value of a refrigerant flow rate, a detected or estimated value of a refrigerant discharge pressure, a detected or estimated value of a refrigerant suction pressure, and a compressor rotational speed, and a control unit using the same. The compressor torque or power may be estimated at a high accuracy without using a refrigerant flow sensor.

The invention discloses a slide vane compressor variable-displacement device, which is characterized by the following: comprising rotor, cylinder, wiper and end lid; arranging the rotor in the cylinder; supporting the two ends of the rotor on the end lid of the cylinder two sides; opening several flat chute on the rotor; arranging the wiper in the chutes; sliding and fitting; opening card tank at the root of partly wiper; corresponding with the card tank; arranging a cutting sleeve; arranging the cutting sleeve on the axle neck of the rotor; proceeding axial move along the axial neck; arranging reset spring; arranging a stroke adjuster; generating position move; proceeding axial move through push bar to drive cutting sleeve; contacting the cutting sleeve with the wiper card tank; shrinking the wiper into the chute of the rotor; realizing various air displacement of the compressor.

In a self-propelled construction machine (1), in particular road milling machine, comprising a machine frame (8), at least three travelling devices (12, 16), wherein at least one of the three travelling devices (12, 16) is realized as a pivotable travelling device (16) so that said travelling device (16) is pivotable about at least one vertical pivoting axis in relation to the machine frame (8) between a first pivoted-in and at least one second pivoted-out position, at least one working device (20), in particular a milling drum, for working the ground pavement (3), at least one hydraulic drive system (70) for driving at least two travelling devices (12, 16), wherein at least one of the at least two driven travelling devices is the pivotable travelling device (16), wherein the hydraulic drive system (70) comprises at least one hydraulic pump (78), it is provided for the following features to be achieved: the hydraulic drive system (70) comprises one each hydraulic variable displacement motor (72) for driving the driven travelling devices (12) with the exception of the at least one pivotable travelling device (16), wherein the hydraulic drive system (70) comprises a hydraulic fixed displacement motor (74) for driving the at least one pivotable travelling device (16).