CZ259596A3 - Apparatus for conducting away a stream in injection pump test room - Google Patents

Abstract

The device diverts the flow in an injection pump test state. A movable flow deflector (11) is pivotally arranged between the injection jet interceptor and an associated measurement vessel to divert the test oil coming from the interceptor, via at least one oil line, to the tank. The diverter (11) and the oil line to the tank form a closed system (27) for the test oil to be fed out. The diverter (11) has inlet openings (25) associated with the interceptor and lying under the interceptor in the pivoted in position. The oil line is connected to the diverter (11) and, at least in the connection region, is formed as a flexible hose (23).

Description

The invention is based on a device for discharging the flow in the injection pump test room according to an embodiment as specified by the characterizing part of claim 1.

BACKGROUND OF THE INVENTION

DE 31 11 870 A1 already discloses a device for the discharge of the injection pump test room, in which the flow diverter is designed as a simple baffle plate, which can be hinged in the interior of the test room by means of two swivel arms and two measuring processes inserted between the injector and the corresponding measuring glass. From several side-by-side injector collectors, with their current flow directions, the shaped test oil streams impinge on an obliquely angled baffle plate, from which flows through a trailing edge into a fixed collecting duct, on the rear wall of the housing, into a collecting sump formed at the bottom of the housing in order to pass through hoses, etc., into a closed test oil tank located at the bottom of the test room. In many cases, it may be disadvantageous that it is

- 2-temperature test oil is fed into the tank through multiple open plates with relatively large sprinkling surfaces. Oil vapor and aerosol formation may occur, and the vapors and mists may enter the ambient air without obstruction. This affects working conditions and the environment. In addition, the collecting channel, connected between the baffle plate and the pipe, increases the construction cost of the injection pump test room, which contradicts a space-saving and cost-effective design.

SUMMARY OF THE INVENTION

On the other hand, the device for withdrawing the flow in the injection pump test hall with the characteristic points of the main claim according to the invention has the advantage that it significantly reduces the formation of oil vapors and aerosols during the test run. Working and environmental conditions can thus be substantially improved. The removal of warm test oil during pauses between measurements using a closed system will considerably reduce this vapor and mist formation that may occur in open and large trickle areas. In addition, the additional collecting channel is saved, making the design of the device more complete and cost-effective.

Advantageous embodiments and improvements of the apparatus set forth in the main claim are possible due to the measures set forth in the dependent claims. In particular, it is advantageous if the flow duct is designed according to claim 2 as an open-top drain pan which is closed by a lid in which the necessary inlet openings are located. The device can be built into already without great difficulty

- 3 existing injection pump test facilities. Further advantageous embodiments follow from the remaining claims, the description and the figures.

Overview of the drawings

An exemplary embodiment of the invention is shown in the figures and is explained in more detail in the following description.

Giant. 1 shows, in a simplified representation, a front view of the flow-evacuating device in the injection pump test room.

Giant. 2 shows a plan view of the device in a simplified representation.

Giant. 3 shows, in a simplified representation, a cross-section through this device according to FIG. III of FIG. 1

DETAILED DESCRIPTION OF THE INVENTION

Giant. 1 shows, in a simplified representation, a front elevation of the flow outlet device 10 as it is unspecified built into the injection pump test room. As a flow divider, the device 10 has a one-sided drain pan 12 at the top, which is closed by a lid 13. The drain pan 12 has a substantially trapezoidal trapezoidal cross-section, the shorter side of which forms the bottom 14 of the drain pan 12. This open side 15 is closed by a lid 13, which is in the shape of a swallow tail in cross section, is pushed onto the drain pan 12 by means of its clips 16,17.

4a which is attached to the drain pan 12 by biasing the tabs 16, 17.

As shown in conjunction with the top plan of FIG. 2 and the section of FIG. 3, FIG. 1 illustrates the drain pan 12 at its front sides with flat head screws 18 to the pivot arms 19, with additionally attached retaining joints 21 forming the connection between As shown in more detail in FIG. 3, FIG. 1 shows at the bottom 14 of the drain bath 12 two outflow necks 22 near the end walls on which a flexible hose 23 is attached by means of hose clips 24. .

As can be seen from FIG. 2, inlet 13 are provided in the lid 13 along the longitudinal wall of the drain pan, the number of which is determined to correspond to the number of injectors or test nozzle holders in the injection pump test room. The size and position of the inlet openings 25 are so selected that the test oil streams emanating from the injectors with the flow directions, simply shown by arrows 26, can pass through the lid 13 undisturbed and be trapped in the drain pan 12. Test oil trapped in the drain pan 12 , flows through the outlet orifices 22 and the connected flexible hoses 23 back to an unspecified tank inside the injection pump test room. Thus, the drain pan 12 closed by the lid 13 forms, together with the two drain necks 22 and the connected hoses 23, a closed system 27 by means of which the trapped oil is discharged back into the tank. Thus, open plates with large sprinkling surfaces do not have to be used for warm test oil coming from the injection pump. Thus, the warm test oil is immediately removed during the measurement breaks by the closed system 27

- 5Test oil test tank. In this way, the formation of oil vapors and aerosols is minimized, thereby significantly improving working and environmental conditions. In addition, the device is built in a more coherent and cost-effective way, as no additional collecting channel is required. In order to prevent the introduction of air into the test oil streams 26, it is preferred that the test oil streams entering the drain pan 12 through the inlet orifices 25 impinge on the inclined longitudinal wall of the drain pan 12 at an oblique direction.

Due to its integral design, the device 10 can be easily integrated into the existing injection pump test benches and used as hitherto. The drain pan 12 is movably mounted in the interior of the test room by means of the swivel arms 19 and during the measurement process it can be displaced from its original position so that the test oil streams 26 can be captured in their respective measuring glasses in an unspecified manner.

Of course, changes are possible in the illustrated embodiment without departing from the inventive idea. Thus, the advantages of the closed system 27 can be retained when the hoses are flexibly formed only in the region of the connection of the outlets, in order to maintain the mobility of the outlet pan 12, and can then be designed as rigid pipe lines towards the tank. It is likewise possible to change the shape of the drain pan 12 and the lid 13, however, as long as the entire system 27 remains closed to itself. While the drain pan 12 and lid 13 are made of aluminum parts, a plastic part construction is also possible.

Zastupuje /

JUDr. Milan Hořejš

0Η3Λ073 λ'Λ Qhld

Claims (4)

PATENT CLAIMS ^f ' ⁹ A device for discharging flow in a test pump test room in which a movable flow diverter can be moved between the injectors and respective measuring vessels to drain the test oil exiting the injectors by at least one oil line into a tank, characterized by that for the test oil to be drained, the oil drain flow conduit (11) forms a closed system (27) into the tank; that the flow trap (11) has inlet openings (25) associated with the injectors and located in the operating position of the trap below the injectors; that the oil line is connected to the flow duct (11) and that at least in the connection area the oil line is designed as a flexible hose (23). Apparatus according to claim 1, characterized in that the flow duct (11) is designed as a one-sided drain pan (12) having at least one drain connection (22) in the bottom and which is closed by a lid on its open side (15). (13) in which the inlet openings (25) are formed. Device according to claim 2, characterized in that the lid (13) has a substantially swallow-tail cross-section and, with its clips (16, 17), is slid and fastened to a drain pan (12) having a substantially trapezoidal cross-section. Apparatus according to claim 3, characterized in that the drain pan (12) is retained with the lid (13) and guided on two pivoting arms (19) with associated retaining joints (21). Device according to one of Claims 2 to 4, characterized in that the drain pan (12) always has a drain connection (22) at its front ends, from which two flexible hoses (23) lead to the tank.