143results about "IC reciprocating piston engine transmission" patented technology

The invention relates to an urban rail operation vehicle and in particular relates to a straddle type monorail operation vehicle with a structure comprising two pairs of wheels. The straddle type monorail operation vehicle comprises a carriage, a steering frame, an engine, a transfer case and a walking pump, wherein the steering frame is connected with an underframe of the carriage through a central pin dragging device; the steering frame comprises a framework, a secondary suspension device and a dragging device; the overall framework is of an II-shaped full-steel installed and welded plate type box structure and comprises a side beam, end beams connected to two ends of the upper part of the side beam and two vertical beams which are connected between the end beams; a motor bracket is fixed between the upper part of the side beam and the corresponding vertical beam; two independently-driven walking wheel assemblies are mounted on two motor brackets; four guide wheel assemblies are mounted on two sides of the middle part of the side beam; two stabilizing wheel assemblies are mounted on two sides of the lower part; the secondary suspension device adopts a secondary steel coil spring assembly. The straddle type monorail operation vehicle can reasonably meet the circuit requirements of monorail PC beams and is high in safety coefficient, excellent in dragging performance, simple and compact in structure, easy to maintain, stable in running and excellent in brake performance.

The invention discloses a bottom-arranged power integrated system for a high-speed internal combustion motor train unit. The bottom-arranged power integrated system for the high-speed internal combustion motor train unit comprises a diesel generating set, a diesel auxiliary system, a cooling system, an electronic control system and a mounting frame, wherein the diesel generating set comprises a diesel and a generator; the generator and the diesel are fixed through a connecting flange; the diesel auxiliary system comprises an inlet air filter, an exhaust SCR aftertreatment system, a fuel system and an engine oil system which are arranged on two sides of the diesel generating set; the cooling system comprises a fixed hydraulic pump, a cooling device, an expansion water tank and a fixed hydraulic tank; the diesel generating set and the cooling device are fixed on the mounting frame through elastic rubber dampers; and the mounting frame is hung below a floor of a vehicle through an elastic rubber damper. While axle weight of the bottom-arranged power integrated system for the high-speed internal combustion motor train unit is reduced, passenger carrying space on the vehicle can be utilized to a maximum extent,, and therefore, requirements of high speed passenger transportation are met.

A system is provided for coupling two or more axles of a plurality of axles on a rail vehicle. The rail vehicle includes a plurality of wheels and a rail track, where the plurality of wheels is received by the plurality of axles. The system includes a coupling device which is configured to couple the two or more axles to dynamically affect a force applied through the two or more axles. One or more characteristics of the force are selected to affect a traction performance of the rail vehicle as the rail vehicle travels along the rail track.

The invention discloses an oil electro-hydraulic and hydrostatic hybrid driving system. The functions of rapid starting, rapid braking, controlling minus grade to be at constant speed and energy-saving can be realized by adopting a concept of supplying oil for accelerated starting with a hydraulic assisted starting motor, a main hydraulic system and an energy storage system, and controlling the torque of a motor through a hydraulic energy accumulation system, and the overall installed power can be reduced while the climbing ability can be increased. By virtue of the assisted starting, the impulse current of the motor is mainly eliminated, not only can the rated power of electric elements be reduced, but also the working life of a storage battery and the mileage of the whole vehicle can be prolonged. By adopting the motor and a diesel engine as double power, the good starting acceleration performance can be realized, and good low-speed stepless regulation capability can also be achieved. The oil electro-hydraulic and hydrostatic hybrid driving system can be switched to a mechanical driving system in high-speed driving, so that the whole machine has higher driving efficiency. The diesel engine provides power for powerless batteryor high-speed driving on the ground, not only can the tail gas pollution in a tunnel be avoided, but also the intermittent driving of vehicles can be guaranteed.

The invention discloses a differential mechanism coupling wheel set used for an urban rail vehicle. According to the coupling wheel set, an independent wheel set on the left side and an independent wheel set on the right side are coupled through a high-friction self-locking differential mechanism, and the high-friction self-locking differential mechanism is provided with a driving and driven friction plate set which can provide pre-tensioning friction torque so that the differential mechanism can be locked by itself. In a linear segment and a major radius curved segment, the different between the friction torque of a left wheel track and the friction torque of a right wheel track is smaller than the pre-tensioning friction torque of the driving and driven friction plate set, and at the moment the differential mechanism is locked, so that the left wheel and the right wheel are coupled together to rotate synchronously and have the self-guiding and self-centering capacity of traditional wheels; in a minor radius curved segment, the different between the friction torque of the left wheel track and the friction torque of the right wheel track is larger than the pre-tensioning friction torque provided by the driving and driven friction plate set, at the moment the differential mechanism is unlocked and starts a differential speed, so that the left wheel and the right wheel have different rotation speeds, and the vehicle can pass through a minor radius curve smoothly. The wheel set solves the problem of wheel track abrasion of the urban rail vehicle and the problem of passing through the minor radius curve and has the same connector as a transmission wheel set, so that interchangeability is good.

Provided is a track car drive system, which is assisted by a generator motor so that it may attain a gear array for equalizing the gear numbers and the gear ratios at the individual gears as a transmission for the forward speed and the backward speed and which can be combined with the generator motor. A transmission (15) for receiving the output of an engine (14) at an input shaft (30) is constituted by combining a forward gear train (31) and a backward gear train (32) with two intermediate shafts (41 and 42) having different speed change gear stages (51 to 54) between themselves and an output shaft (45). By shifting/fastening a first clutch (43) or a second clutch (44) selectively, the rotation of either the forward gear train (31) or the backward gear train (32) is transmitted to either of the intermediate shafts (41 and 42). When one of the speed change gear stages (51 to 54) is selected, the same gear number and gear ratio are taken no matter whether the track car might run forward or backward. The assist force by the generator motor (18) is applied from a differential mechanism (55) through the two intermediate shafts (41 and 42) to the output shaft (45).

The invention provides a comprehensive operation vehicle of a railway contact system. The comprehensive operation vehicle of the railway contact system comprises an operation system, a vehicle body and a power transmission system, wherein the power transmission system comprises a power transmission device and an operation power system, the power transmission device comprises an engine and a hydraulic transmission case, and the output end of the hydraulic transmission case is connected with one end of a bogie to drive a wheel set to travel at high speed; and the operation power system comprises an operation engine, a transfer case, a travel pump, an operation pump and a pump for a locking system, the three output ends of the transfer case are respectively connected with the input ends of the travel pump, the operation pump and the pump for the locking system, the operation pump drives a lifting wire shifting device, an operating platform and an overhead working bucket to operate, the output end of the travel pump is connected with the input end of a low-speed travel motor, the output end of the low-speed travel motor is connected with the other end of the bogie to drive the wheel set to travel at constant low speed, and the pump for the locking system drives the bogie to lock the operation of an oil cylinder. The comprehensive operation vehicle is supplied with power through two engines, the hydraulic transfer case is utilized to respectively drive the bogie to travel at high speed, and the operation engine is used to supply power for the low-speed traveling and locking of the oily cylinder and the operation system.

The invention discloses an electricity supply system of a diesel multiple unit. The electricity supply system comprises a diesel power pack, a traction inverter connected with a tractor motor and an auxiliary inverter connected with loads of the whole diesel multiple unit and further comprises a DC chopper and a super-capacitor which are connected with each other; the high-voltage side of the DC chopper is connected with the diesel power pack, and the low-voltage side of the DC chopper is connected with the super-capacitor; and the super-capacitor is connected with the traction inverter and the loads of the whole diesel multiple unit. By applying the electricity supply system provided by the invention, intermediate voltage control is simplified, and the stability and the control simplicity of the system are improved; and the super-capacitor can provide large power in a short time for starting and accelerating of a train in the traction process, thus, the train can adopt the small diesel power pack, the size and the weight of the diesel power pack are decreased, and installing of the diesel power pack is facilitated. Train braking recovered energy can be recycled, and accordingly the energy saving and emission reduction effect can be achieved. Meanwhile, the invention discloses the diesel multiple unit comprising the electricity supply system and a traction control method of the diesel multiple unit.

The invention provides an internal-combustion high-speed motor train unit which comprises a power towing carriage, a motor train unit carriage for carrying passengers as well as a trailer carriage connected with the motor train unit carriage for carrying passengers, wherein the power towing carriage comprises a power towing device and is used for towing the motor train unit carriage and the trailer carriage to run; the motor train unit carriage is connected with the power towing carriage, comprises an electric actuator, and is used for towing the trailer carriage to run through the electric actuator under the towing of the power towing carriage; and the trailer carriage is connected with the motor train unit carriage and runs under the towing of the power towing device and the electric actuator. According to the internal-combustion high-speed motor train unit provided by the invention, by adopting a form of separately arranging the power towing device and the electric actuator, the requirement for large power of the high-speed motor train unit is met, and the axle load is simultaneously reduced so as to enable the internal-combustion high-speed motor train unit to be practical and industrialized possibly, thereby greatly reducing the impact on lines and effectively reducing the construction and maintenance cost of the lines.

A tractive motor suspending method and steering bogie of three-axle locomotive features that the tractive motors on the three-axle steering bogie are respectively suspended in different modes, that is, the elastic suspending mode is used for two side motors and the rigid suspending mode is used for middle motor, and three axles of steering bogie are combined, resulting in high transverse dynamic properties of locomotive.

The invention provides a railway official business rail car with power. A car group is formed by connecting a first official business rail car with the power and a second official business rail car with the power by a car coupler and a folding shed windshield; according to the car group, unit operation and double coupled running can be realized; the first official business rail car and the second official business rail adopt fluid drive to realize stepless speed change. The whole car group disclosed by the invention adopts a dynamic sinking type arrangement mode, single car is a fluid drive four-axis rail car, the highest self-operation speed is 120km/h, and the railway official business rail car with the power has advantages of stability in driving and good dynamics performance, and the safe operation of a high-speed railway can be completely satisfied.

The invention discloses a railway engineering machine hybrid power source switching system which comprises a hybrid power source and a converter connected with the hybrid power source. The hybrid power source comprises an overhead line system power supply module and an internal combustion power supply module, and electric energy from the overhead line system power supply module or the internal combustion power supply module is converted through the converter and treated to form electric energy needed by a traction motor; when the system is electrically connected and communicated with an overhead line system and the overhead line system is continuously powered, the traction motor is powered by the overhead line system power supply module. When the system is electrically disconnected with the overhead line system or the overhead line system is not continuously powered, the traction motor is powered by the internal combustion power supply module. When the two power supply modules need tobe switched, the traction motor is powered by both the overhead line system power supply module and the internal combustion power supply module at the same time in the switching process, and the replaced power supply module exit from power supply after switching is ended. The technical purpose that it is ensured that the operation mechanism can continue to work and no impact exists when the two power sources are switched can be achieved.

The invention relates to a length-adjustable shaft comprising - an outer sleeve-shaped axial part; - an inner axial part which can be pushed into and deployed out of the outer axial part in a telescopic fashion and which encloses a buffer chamber; - having a bearing which is arranged between the two axial parts and which can be lubricated with a lubricant; - that end of the inner axial part which can be pushed into the outer axial part has an end wall; - a ventilation opening is provided which connects, in a conducting fashion, the buffer chamber to the cavity which is enclosed by the outer axial part. The invention is characterized by the following features: the ventilation opening comprises at least one bore which is offset with respect to the rotational axis of the shaft.

The invention discloses a hydraulic low-speed walking transmission system. The oil pump of the system is connected with the inlet of an electrohydraulic selector valve by a pipeline; the high pressure working oil port and the low pressure working oil port of the electrohydraulic selector valve are connected with the oil inlet and the oil outlet of a hydraulic motor; the oil returning port of the electrohydraulic selector valve is communicated with a hydraulic oil tank; and the hydraulic motor is in transmission connection with an axle gear box. In the walking process, the oil outlet of the hydraulic motor is always communicated with the low pressure working oil port of the electrohydraulic selector valve, and does not enter the oil inlet pipeline of an oil pump any more. In the descending process, the energy acquired by the hydraulic motor cannot be transferred to the oil pump and a diesel engine, so that the rotational speed of the diesel engine increases. An electric proportional overflow valve is arranged between the oil returning port of the electrohhydraulic selector valve and the hydraulic oil tank, and an oil returning pressure applied to the hydraulic motor is changed by adjusting the electric proportional overflow valve, so that the stress on a vehicle is balanced, and the constant-speed walking of the vehicle is ensured. Check valves are arranged between the oil inlet and the oil outlet of the hydraulic motor and the oil returning pipeline of the electric proportional overflow valve, so that the problem that suction easily occurs in the hydraulic motor in an open hydraulic system can be solved.

The invention discloses a low-emission highly environment-friendly shunting locomotive power source of double diesel generating sets. The shunting locomotive power source includes the first diesel generating set with relatively lower power, the second diesel generating set with relatively higher power, a traction converter and an engine power battery system; alternating current emitted by the twodiesel generating engines is rectified by an AC/DC conversion module in the traction converter and converted into direct current by means of filtering of a supporting capacitor; the two electrodes ofthe supporting capacitor are connected to a power battery of an engine power battery system, and an engine micro-computer controls an excitation driving module of the second diesel generating set according to information supplied by a driver controller. Through adoption of the two diesel generating sets different in power, the first diesel generating set lower in power runs for a long time at rated power, and the second diesel generating set higher in power only runs when the engine power battery system breaks down, and low-running traction work or big-load shunting traction work needs to be done, and the switch engine power source has the advantages of being low in emission and highly environmentally friendly.

The invention relates to a driving system for a railway vehicle and the railway vehicle. The driving system comprises a plurality of sub driving systems, wherein each of the sub driving systems comprises a single wheelset, a brake caliper, a brake disc, an axle box, a gearbox, a driving mechanism and a gearbox grounding device; the axle box is mounted on the inner side of a wheel in the single wheelset; the brake disc is fastened on an axle of the single wheelset, and the brake caliper is mounted on an end cover on one side of the axle box for clamping the brake disc when the railway vehicle brakes; the gearbox is mounted on the axle of the single wheelset and is connected to the output end of the driving mechanism through an input shaft thereof; and the gearbox grounding device is mounted on the end cover of the gearbox. The driving system is used for overcoming the defect that the driving mechanism for the railway vehicle in the prior art is narrow in variable driving range, weak in driving force and short in service life, and expanding the variable driving range of the driving mechanism, improving the driving force and prolonging the service life.

The invention provides a power system and a rail locomotive. The power system is used for the rail locomotive and comprises a power device, a plurality of driven devices and a transmission device, wherein the transmission device comprises a multi-stage gear train with a plurality of output ends; the output end of the power device is connected with the input end of the multi-stage gear train; and the input ends of the plurality of driven devices are respectively connected with one output end of the multi-stage gear train. The rail locomotive comprises a power room, a cab and a brake room which are sequentially arranged, wherein the power system is installed in the power room. According to the power system and rail locomotive provided by the invention, by connecting the multi-stage gear train with the plurality of output ends between the power device and the plurality of driven devices so as to carry out transmission, power output is more flexible.

The invention relates to the technical field of diesel locomotives, in particular to a high-power alternating-current transmission shunting diesel locomotive. The high-power alternating-current transmission shunting diesel locomotive comprises an upper body, a lower body, an auxiliary room, a cab, an electric room, a main transformer room, an engine room, a power room, a cooling room, a bearing type fuel tank, bogies and a frame. The upper body is composed of the auxiliary room, the cab, the electric room, the main transformer room, the engine room, the power room and the cooling room; the lower body is composed of the bearing type fuel tank and the bogies; the auxiliary room is arranged at the rear end of the cab, the electric room, the main transformer room and the main engine room are arranged at the front end of the cab, and the power room is arranged between the main engine room and the cooling room; dividing walls are arranged between the rooms; the bogies are arranged on the two sides of the bearing type fuel tank; the frame is arranged between the upper body and the lower body. The high-power alternating-current transmission shunting diesel locomotive is compact and reasonable in structure, convenient and fast to assessable, reliable in connection, suitable for large or medium shunting yards, also suitable for various severe climatic environments, small in routine maintenance quantity and easy to use and popularize.

The invention provides a hydraulic driving catenary maintenance operation vehicle. The hydraulic driving catenary maintenance operation vehicle is provided with a frame, wherein a power bogie is arranged at the front end of the lower part of the frame; a non-power bogie is arranged at the rear end of the lower part of the frame; a power driving integration device is arranged in the middle of the lower end face of the frame and comprises an integrated support; a power and assisting system and a hydraulic driving system are arranged on the integrated support; the power and assisting system is connected with the power bogie through the hydraulic driving system and drives the power bogie to rotate; a driver cab is arranged at the front part of the upper end of the frame; a rear operation platform is arranged at the upper end face part of the frame; a hydraulic lifting rotary operation platform, a tension stringing column and a lorry-mounted crane are arranged on the rear operation platform. The driving system disclosed by the invention adopts a hydraulic transmission box, so that the maximum driving speed of the vehicle can reach 100km/h; in addition, the power and assisting system and the hydraulic driving system are integrally arranged by adopting the integrated support and are arranged in a sinking manner, so that an indoor space of the entire vehicle and a working area of the rear operation platform are increased, and conditions of a workplace are improved.

A vehicle control system examines characteristics of an upcoming segment of a trip of a hybrid vehicle. One or more locations in the upcoming segment of the trip are identified based on the characteristics as places where an engine of the vehicle is incapable of generating enough energy to power the vehicle through the locations. Operational settings of the vehicle are calculated based on the locations to operate the vehicle in a way that charges an energy storage device with energy that can be used to replace or supplement the energy provided by the engine to propel the hybrid vehicle over or through the locations. The one or more processors are configured to one or more of automatically control or generate a control signal for automated operation of the hybrid vehicle according to the one or more operational settings that are calculated.

The invention discloses a control method for a hybrid power source for railway engineering machinery. The hybrid power source comprises a main power source and an auxiliary power source, the main power source is the catenary power source, the hybrid power source system preferably chooses the main power source to supply electricity, and electric energy from the main power source or the auxiliary power source is converted, processed through a converter and then supplies electricity to whole vehicle electrical equipment. When electrical connection of the railway engineering machinery and a catenary is connected and the catenary continuously supplies power, the catenary power source supplies electricity to the whole vehicle electrical equipment. When electrical connection of the railway engineering machinery and the catenary is disconnected or the catenary cannot continuously supply electricity, the auxiliary power source supplies electricity to the whole vehicle electrical equipment. Whenswitching between the two power sources is required, the main power source and auxiliary power source supply electricity to the whole vehicle electrical equipment simultaneously in the switching process, the replaced power source is out of electricity supply after switching is finished. The control method for the hybrid power source for the railway engineering machinery can solve the technical problems of complex maintenance, existence of hydraulic oil leakage and serious environmental pollution of an existing railway engineering machinery internal combustion hydraulic power mode.

Provided is a dual-power contact line inspection car suitable for high-speed rail paths in high-altitude areas. The dual-power contact line inspection car comprises a car frame. Bogies are arranged at the two ends of the lower portion of the car frame. A barrier remover and a wind horn are arranged on the portion, outside the bogies, of the car frame. An exhaust system, an intake system, a hydraulic oil tank, a heat dissipation system and a storage battery container are fixed to the lower portion of the car frame sequentially. A car body is arranged on the upper end face of the car frame. The car body comprises a cab and a compartment. A 4C detection system is installed on the compartment. An oxygen supply device is arranged inside the compartment. A power generator unit is arranged in the middle of the lower end face of the car frame. The two ends of the car frame are each provided with a power system, and accordingly the dual power systems of the car are formed. The power of the whole car can be improved, the requirement that the highest operating speed reaches 120 km/h under the condition that power in high-altitude areas is reduced can be met, the requirement for power for a 4C detection device and living power in the high-altitude areas is met, a guarantee can be provided under the oxygen deficient condition in the high-altitude areas, and assembling of all components of the whole car can well adapt to the atrocious weather conditions such as the high altitude, low temperature and heavy sand blown by wind.