1567 results about "Semi-trailer" patented technology

The invention discloses an electric drive fracturing semi-trailer of a frequency conversion integrated machine. The optimization and integration of the traditional power supply semi-trailer and the fracturing semi-trailer realize the functions of power supply and fracturing of one semi-trailer without using the complete set of the power supply semi-trailer and the fracturing semi-trailer, the electric drive fracturing semi-trailer is more flexible in actual use, and the well field layout of oil and gas fields is greatly optimized; the transportation is convenient; only a set of high-voltage cables can be connected with the high-voltage power supply to reach a working state, and the wiring installation is faster; compared with diesel-driven fracturing, and the noise of the electric drive fracturing is low without exhaust emission pollution; the driving source is power, which has lower cost than the diesel; the electric drive fracturing semi-trailer adopts an integrated design of a motorand a frequency converter (namely, the frequency conversion integrated machine), the space occupied by the electric motor and the inverter in the prior art is reduced effectively, so the installing part of the electric drive fracturing semi-trailer has smaller volume and the transportation is more convenient, and can also provide space guarantee for installing other equipment on the semi-trailerbody.

In the case of a method for hitching a trailer (2) to a motor vehicle (1), in particular a semitrailer to a semitrailer towing machine, an image sensor (5) is provided which is arranged in a hitching region (6) in such a manner that image data of the hitching region (6) are recorded. During the approach of the motor vehicle (1) to the trailer (2), stored model data of the hitching region (6) of the trailer (2) are segmented in the image data recorded by the image sensor (5) and are in each case placed in the correct position in the image data. A target zone (9) for the hitching is determined therefrom. The arrangement of the target zone (9) in the image data is used as a measurement for a steering operation of the motor vehicle (1) during hitching.

The invention discloses an all-in-one anchoring trailer, and belongs to ground devices of medium and small-sized tethered balloons. The all-in-one anchoring vehicle comprises a semitrailer chassis, a pivoting platform fixed on the semitrailer chassis through a pivoting support and a mooring tower, a plurality of horizontal support arms and a capsule box which are arranged on the pivoting platform, and also comprises a shelter fixed to the front part of the pivoting platform, wherein a winch system is arranged in the shelter; the mooring tower is arranged at the front end of the pivoting platform; the horizontal support arms are hinged on both sides of the rear end of the pivoting platform; and the capsule box is fixed to the rear part of the pivoting platform. In the all-in-one anchoring trailer, all-in-one operation such as aeration, anchoring, levitation, air retention, recovery, roll-up and the like of the medium and small-sized tethered balloons can be performed on the pivoting platform directly, so the maneuverability of a tethered balloon system is improved greatly, the time of unfolding the system is reduced, the operation is simplified, the efficiency is improved and the quick-response capability of the tethered balloons is enhanced.

A modular passenger semi trailer incorporating a vehicle construction technique in which the assembled passenger and alternate industrial embodiment modules observe structural strength, weight and balance and fail safe design considerations. The modular passenger semi trailer cabin module, including all interior seating and equipment, is assembled as a single unit upon a single, top, flat production joint face of the lower structure module, that module having a plurality of closed box beam compartments. A substantially sized cylinder compartment at the rear of the vehicle houses a pneumatically, reciprocally operative piston assembly containing a unipoint suspension which operates cooperatively with a wheel unit in the lower portion of the compartment. The wheel unit is captively located by a wheel shaft and cam block, swivel block external members, sandwiched, acting cooperatively within a forward and aft set of vertically disposed guideplates, the wheel unit operative along its vertical, longitudinal and lateral axis.

The Umbrella Semi-Trailer Drag Reducer is a device that reduces tractor-trailer aerodynamic drag, saving energy and reducing fuel consumption. The design includes a number of features similar to an umbrella, including flexible skin, metal ribs, quick-acting deployment, and compact stowage. The Umbrella Semi-Trailer Drag Reducer is designed to minimize installed cost, be robust and vandal resistant, and reduce the time needed for deployment to only a few seconds. The design includes two independent, paraboloid, mirrored halves, one mounted to each door. The bottom of each mirrored half is open, with a profile similar to one quadrant of an umbrella. Wide-throw hinges accommodate the collapsed stowed drag reducer. Turnbuckles maintain taught skin. The design allows easy retrofit for most existing semi-trailers. The drag reducer is mounted high above the road surface, with no part protruding beyond the top or sides of the semi-trailer.

An aerodynamic forebody device is provided for use with a tractor-trailer combination vehicle to be installed on the front of the semi-trailer. By optimizing the inclination angle of the top surface of the aerodynamic forebody device, aerodynamic drag is minimized. It is emphasized that this abstract is provided to comply with the rules requiring an abstract that will allow a searcher or other reader to quickly ascertain the subject matter of the technical disclosure. It is submitted with the understanding that it will not be used to interpret or limit the scope or meaning of the claims.