JPS6010186Y2 - Large diesel vehicle with separate power unit - Google Patents

Description

[Detailed Description of the Invention] The present invention relates to a large diesel motor vehicle equipped with a gasoline engine that can be driven through noise-restricted residential areas using a separate power unit from the gasoline engine.

In general, prime movers installed in large vehicles are less reliable than gasoline engines because fuel costs, which account for most of the vehicle's operating costs, are lower than gasoline engines, and they do not have electric ignition systems or carburetors that are prone to malfunctions. An expensive diesel engine is used.

However, despite the above-mentioned advantages, diesel engines have the drawback that their maximum combustion pressure is much higher than that of gasoline engines, resulting in high engine vibration and noise, which is a problem when driving on highways and in suburban areas. The above-mentioned engine noise has become a problem in residential areas as it causes discomfort to the human body, and in particular, some committees are restricting the entry of large vehicles into residential areas as a measure to prevent noise pollution.

Therefore, the present invention was developed as a noise prevention measure for large diesel automobiles, and by installing a separate power unit of a small and quiet gasoline engine, which is used as a prime mover for driving in residential areas, on large diesel automobiles, The purpose is to prevent engine noise from large diesel vehicles.

That is, the present invention mounts a gasoline engine on a large vehicle equipped with a diesel engine, provides an autotransmission on the output shaft of the gasoline engine, and connects the output shaft of the automission to the gearbox of the diesel engine. The present invention is a large-sized diesel automobile equipped with a separate power unit, which is connected to a power take-off device provided on the engine, and is further provided with a mechanism that locks the clutch pedal of the diesel engine in a depressed state.

Embodiments of the present invention will be described below with reference to the drawings.

First, in the large diesel automobile according to the embodiment of the present invention shown in FIGS. 1 and 2, a diesel engine 3, which is the main engine of the automobile, is mounted under a cab 2 provided in the front of a frame 1. It is designed to be operated from the driver's seat inside cab 2.

In addition, the power transmission device that transmits the power from the diesel engine 3 to the rear wheels 4 includes a clutch 5 that connects and disconnects the power of the diesel engine 3, and a clutch 5 that adjusts the rotational force and changes the direction of rotation to transfer the power to the propulsion shaft. 6, and a universal joint 9 for smoothly transmitting the power from the transmission 7 to the rear wheels 4 via the propulsion shaft 6, differential 8, etc.

Therefore, in the embodiment of the present invention, a small gasoline engine 10 is mounted on the side of the frame 1 as a separate moving blade device having sufficient capacity for running this large diesel vehicle on flat ground. In addition to the radiator 14, other necessary equipment for this gasoline engine 10 is installed.

Furthermore, an automission 11 was attached to an output shaft (not shown) of this gasoline engine 10, and an output shaft 12 of this automission 11 was attached to a gear provided in a gear box 13 and a side surface of the diesel engine 3 transmission 7. It is connected to the transmission 7 via a power extraction device 17.

Further, the driver's seat of the cab 2 is equipped with accessory equipment necessary for operating the gasoline engine 10, in addition to various equipment for operating the diesel engine 3.

Further, while the gasoline engine 10 is in operation, a clutch pedal 16 for the diesel engine 3 provided at the driver's seat is depressed so that power transmission between the diesel engine 3 and its clutch 5 can be disconnected. A latch device is provided so that when the lever 15 is pulled, the clutch pedal 16 is locked and the clutch 5 is maintained in a disengaged state.

Therefore, when operating the diesel engine 3, by returning this lever 15, the clutch pedal 16 is unlocked and the clutch 5 operates normally.

Note that an automatic transmission called an automission 11 is used as the power transmission device for the gasoline engine 10 in this embodiment, but a torque converter that is generally used as the automission 11 does not require large torque. It has the characteristic that the maximum gear ratio appears when the car starts, and as the vehicle speed increases and large torque is no longer needed, the gear ratio gradually decreases.Also, it is easier to control than a manual transmission, so it is most suitable for this invention. ing.

In the present invention, a gasoline engine 10 is mounted on a large vehicle equipped with a diesel engine 3, and the output shaft 12 of the autotransmission 11 of the gasoline engine 10 is connected to the side of the gearbox 13 and the transmission 7 of the diesel engine 3. The diesel engine 3 is connected to the output side of the diesel engine 3 via the provided power take-off device 17, and the diesel engine 3 is further provided with a locking device for holding the clutch pedal 16 in a depressed state, for example, a lever in the above embodiment. It is distinctive in that it has a number of 15.

Therefore, when driving in areas where noise is not a big problem, such as on expressways or in the suburbs, use a diesel engine with low fuel costs, and when driving in areas with strict noise regulations such as in residential areas or at night. , stop the diesel engine 3, depress the clutch pedal 16, lock it with the lever 15, and release the connection between the diesel engine 3 and the transmission 7,
By driving the gasoline engine 10, its output is
Auto mission 11. Since the noise is transmitted to the propulsion shaft 6 via the transmission 7, it is effective as a noise prevention measure for large diesel automobiles, and also allows large diesel automobiles subject to noise regulations to drive into residential areas.

In particular, in the present invention, the structure of a conventional large-sized diesel automobile is left unchanged, a small-output gasoline engine 10 is mounted on the vehicle, and a connecting device between the gasoline engine 10 and the transmission 7 of the diesel engine 3 is provided. Since it is possible to run the car by selectively using the diesel engine 3 or the gasoline engine 5, it becomes easy to modify a normal large diesel car.

[Brief explanation of drawings]

FIG. 1 is a plan view of a large diesel automobile equipped with a gasoline engine according to an embodiment of the present invention, with the loading platform removed;
FIG. 2 is a side view of FIG. 1. 1... Frame, 3... Diesel engine, 5... Clutch, 6... Propulsion shaft,
7...Transmission, 10...Gasoline engine, 11...Auto transmission, 12...
・Output shaft, 13...Gear box, 15...
...Lever, 16...Clutch pedal, 17
...Power take-off device.

Claims (1)

[Scope of utility model registration request] A gasoline engine 10 is mounted on a large vehicle equipped with a diesel engine 3, an autotransmission 11 is provided on the output shaft of the gasoline engine 10, and an output shaft 12 of the automission 11 is connected to the diesel engine via a gear box 13 A large-sized engine equipped with a separate power unit, which is connected to a power take-off device 17 provided in the transmission 7 of the engine 3, and is further provided with a mechanism that locks the clutch pedal 16 of the diesel engine 3 in a depressed state. diesel car.