JPS633846Y2 - - Google Patents

Description

[Detailed Description of the Invention] This invention relates to a vehicle body structure of an outside air introduction part to an air cleaner in a cab-over type automobile.

Conventionally, as an outside air introduction device to the air cleaner of a cab-over type car, an intake slit is provided near the lower end of the outer panel of the center pillar, which has a closed internal space, and an intake pipe extending from the air cleaner installed in the engine is used. For example, a device in which the tip of the cylinder is inserted into the pillar and the air flowing into the pillar from the slit is sucked into the air cleaner is known from Utility Model Application No. 56-326.

However, with this type of intake system, when driving through puddles or flooded roads, water infiltrates through the slits provided at the lower end of the outer plate of the center pillar, and water does not penetrate to such a depth that the slits can penetrate. When this occurs, water flows all at once into the pillar from the slit, and the suction pipe extending from the air cleaner into the pillar sucks this water together with the atmosphere. Therefore, this water enters the combustion chamber of the engine together with the intake fuel, causing a sudden increase in compression pressure and damaging the engine, resulting in so-called liquid compression. Therefore, in order to prevent the above-mentioned liquid compression, the position of the slit and the opening of the suction pipe are made as high as possible, or the suction pipe is of a snorkel type. Efforts had been made. however,
Such a structure has problems such as being subject to various layout restrictions.

This invention provides a vehicle body structure for an outside air introduction portion to an air cleaner, which is intended to prevent liquid compression, which is the drawback of the conventional method.

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

1 and 2 show an embodiment of this invention,
The internal space sandwiched between the pillar inner panel 1 and the pillar outer panel 2 is partitioned by two partition plates 3 and 4 to form a first intake chamber a and a second intake chamber b. A plurality of intake slits 5 are provided. The inner panel 1 is provided with a hole 6, into which a suction pipe 8 of an air cleaner 7 is inserted, and the tip of the suction pipe 8 opens into the second intake chamber b. The space between the hole 6 and the suction pipe 8 is sealed by a grommet 9.

Next, a first intake port d is formed in the partition plate 3, and the first intake port d is opened and closed by a float 11 disposed in the first intake chamber a. A second intake port c is provided on the partition plate 4, and the second intake port c is opened and closed by an opening/closing member 10. This opening/closing lid 10
and the float 11 are connected by a rod 12. Note that 13 is a drain hole for draining water that has entered the pillar.

In the above configuration, during normal intake operation, the second intake port c is closed by the opening/closing lid 10, and the first intake port d is open because the float 11 is lowered. Therefore, as shown by arrow A, the air is sucked into the first intake chamber a through the intake slit 5, passes through the first intake port d, and is guided to the intake pipe 8 of the air cleaner 7. When driving on the road, water enters through the slit 5 and accumulates in the first intake chamber a at the bottom of the pillar.
As the water level rises, the float 11 is pushed upward and closes the first intake port d. At this time, the opening/closing lid 10 is pushed open by the rod 12 (indicated by the two-dot chain line in FIG. 2), and the second intake port c communicating with the vehicle interior is newly opened.
In this state, air is drawn into the second intake chamber b in the pillar through the second intake port c, as shown by arrow B, and is guided to the intake pipe 8 of the air cleaner 7.

As described above, this invention is a liquid compressor that closes the first intake port using a float when rainwater enters the intake chamber through the ventilation slit, and opens the second intake port in conjunction with the movement of the float. This prevents friction.

[Brief explanation of the drawing]

Figure 1 is a perspective view of the main parts of the vehicle body of this embodiment;
The figure is a - sectional view of FIG. 1. DESCRIPTION OF SYMBOLS 1...Pillar inner panel, 2...Pillar outer panel, 3...Lower partition plate, 4...Upper partition plate, 5...Intake slit, 7...Air cleaner, 8...Air cleaner suction pipe, 10... ...opening/closing lid, 11...float, 12...rod, a...
First intake chamber, d...first intake port, b...second intake chamber, c...second intake port.

Claims (1)

[Scope of utility model registration request] An automobile body pillar with a closed cross section extending in the vertical direction is internally partitioned by two upper and lower partition plates, and a first intake chamber formed by the lower partition plate and the pillar panel;
It has a second intake chamber formed by an upper and lower partition plate and a pillar panel, the first intake chamber has a float that can move up and down, and a first intake chamber that is formed on the lower partition plate and is opened and closed by the float. An intake slit opened in the mouth and the pillar outer panel is provided, and the second intake chamber is provided with a second intake port opened and closed by a lid on the upper partition plate, into which the tip of the intake pipe of the air cleaner is inserted. The lid and the float are connected by a rod, and when rainwater enters through the slit, the first intake port is closed by the float, and the second intake port is opened in conjunction with the movement of the float. The structure of the car body where outside air is introduced into the air cleaner.