The results have shown that by restraining the boost pressure the maximum torque speed decreases to 50% maximum power speed and the maximum torque increases to 126.6% maximum power torque.

The comprehensive performance of engine at high altitude can be improved if maximum torque point of engine is adjusted to maximum efficiency zone of turbocharger and efficiency of rated power is regulated around 66%,and it is an effective method to guarantee performance for start at high altitude with the increase of compression ratio of engine.

After raising the compression ratio of a gasline engine of double fuel system with gasline and methanol,its effect on the intake and exhaust temperature,wall temperature,engine performance and exhaust emissions has been investigated. Experimental results show that the maximum torque of a gasline engine of double fuel system with gasline and methanol increases by 12% and the specific heat comsump-tion of it decreases by 5~10%.

The results have shown that by restraining the boost pressure the maximum torque speed decreases to 50% maximum power speed and the maximum torque increases to 126.6% maximum power torque.

After raising the compression ratio of a gasline engine of double fuel system with gasline and methanol,its effect on the intake and exhaust temperature,wall temperature,engine performance and exhaust emissions has been investigated. Experimental results show that the maximum torque of a gasline engine of double fuel system with gasline and methanol increases by 12% and the specific heat comsump-tion of it decreases by 5~10%.

After using the GT35 turbo and enter resonance , the low speed performance of type CA6DE2-24 engine are improved obviously . When the engine rotates 900r/m, the torsion increases from 380N.

The purpose of researching engins’ characteristic curve is find the changing regularity of the engins’ dynamical、economical performance targets and the speed which is corresponded to the max power、maximum wresting moment and minimum consuming rate of fuel when they are working in different speed, and then we can confirm the favorable working speed range of the motors.

Based on the model, the vibration isolation performance of the mounting system was simulated in the three typical conditions both in time domain and in frequency domain. And the performance curves were get.

The improvement work done on QM50 QM-2 petrol engine has resulted in a reduction of speed at the max torque by 1 000 r/min and an increase of max torque by 10%~15% and a raise of max power by 5%~10%.

torque rise by 37. 5% and 20% respectively compared with those of the original engine and the lowest fuel consumption of the external characteristics drops by 8%.

In this paper, on the basis of inverse dynamic formulation of the 2-DOF spherical parallel mechanism, an approach is proposed for estimating the servomotor parameters including moment of inertia, rated speed and the maximum torque in a quick manner.

To reduce the maximum torque, we suggested the use of the minimum norm torque as the weighting values.

In this paper, the following two topics are discussed: the load adjustment so as not to exceed the maximum torque of the actuator in some of the wheels and keeping the balance of rotation velocity among the wheels.

The quality of these impulses is therefore limited by the maximum torque of the motor.

Maximal plantar flexor torque and resting twitch torque decreased significantly in a sigmoidal fashion with increasing knee flexion to 60% of the maximum torque at 180° knee angle.

In this paper, on the basis of inverse dynamic formulation of the 2-DOF spherical parallel mechanism, an approach is proposed for estimating the servomotor parameters including moment of inertia, rated speed and the maximum torque in a quick manner.

To reduce the maximum torque, we suggested the use of the minimum norm torque as the weighting values.

In this paper, the following two topics are discussed: the load adjustment so as not to exceed the maximum torque of the actuator in some of the wheels and keeping the balance of rotation velocity among the wheels.

The quality of these impulses is therefore limited by the maximum torque of the motor.

Maximal plantar flexor torque and resting twitch torque decreased significantly in a sigmoidal fashion with increasing knee flexion to 60% of the maximum torque at 180° knee angle.

With availability of higher octane gasoline(from 66 to 70 MON) a widely used L-head gasoline truck engine was modified to improve its performance. Compression ratio was raised from 6.0 to 6.4 so that power output was raised by 5%, maximum torque 1.35%, with fuel consumption reduced by 1.86%. For further reducing fuel consumption a new type of carburetor with smaller venturi tube was developed, aiming at maintaining the original power and torque while reducing fuel consumption. Engine bench tests showed that...

With availability of higher octane gasoline(from 66 to 70 MON) a widely used L-head gasoline truck engine was modified to improve its performance. Compression ratio was raised from 6.0 to 6.4 so that power output was raised by 5%, maximum torque 1.35%, with fuel consumption reduced by 1.86%. For further reducing fuel consumption a new type of carburetor with smaller venturi tube was developed, aiming at maintaining the original power and torque while reducing fuel consumption. Engine bench tests showed that minimum fuel consumption at WOP was reduced by 9.21%.Subsequent road tests proved that there is no noticeable difference between the truck with the improved engine and the original one in acceleration and maximum speed, but fuel consumption both in constant speed test and service was reduced by more than 10%.For further raising compression ratio and power output or lowering fuel consumption, a new aluminum alloy head is now under development.

After raising the compression ratio of a gasline engine of double fuel system with gasline and methanol,its effect on the intake and exhaust temperature,wall temperature,engine performance and exhaust emissions has been investigated.Experimental results show that the maximum torque of a gasline engine of double fuel system with gasline and methanol increases by 12% and the specific heat comsump-tion of it decreases by 5~10%.

The load in transmission system for Hong Qi model CA774 and other limousines is calculated according to the maximum engine torque, the torque causing driving wheel sliping, maximum gradeability of the car and driving torque of whole car, etc. Meanwhile various design parameters of driving axle gears for these limousines, for example, the number of teeth for driving and driven gears, width of tooth face for driven gear, offset of hyperbolic gear, radius of cutter head, spiral angle, addendum coefficient, pressure...

The load in transmission system for Hong Qi model CA774 and other limousines is calculated according to the maximum engine torque, the torque causing driving wheel sliping, maximum gradeability of the car and driving torque of whole car, etc. Meanwhile various design parameters of driving axle gears for these limousines, for example, the number of teeth for driving and driven gears, width of tooth face for driven gear, offset of hyperbolic gear, radius of cutter head, spiral angle, addendum coefficient, pressure angle, pitch diameter and direction of spiral, etc. are all calculated and selected.