Fluid sprinkling – spraying – and diffusing – With signals – indicators – recorders – meters or changeable... – Position or extent of motion indicator
Patent
1986-11-24
1988-09-13
Kashnikow, Andres
Fluid sprinkling, spraying, and diffusing
With signals, indicators, recorders, meters or changeable...
Position or extent of motion indicator
239600, 73119A, G01M 1500
Patent
active
047703466
DESCRIPTION:
BRIEF SUMMARY
BACKGROUND OF THE INVENTION
The invention is based on a fuel-injection jet. In a known injection jet of this type (DE-A No. 1 3227 989) the cable conduit which receives the feed wires of the induction coils is fed at a right angle with respect to the jet axis to the connecting ends of the induction coil. In this embodiment, the feeding wires are advantageously connected with the connecting ends of the induction coil after inserting the induction coil into the jet support. However, if the connection is performed before the inserting of the induction coil, special care must be taken during the insertion of the induction coil. In both cases, the cross section of the cable conduit must be dimensioned relatively large, and an increase is manufacturing effort must be assumed.
SUMMARY OF THE INVENTION
In contrast thereto, the arrangement in accordance with the invention is advantageous in that the feeding wires can be already connected before inserting the induction coil into the jet support, without making the inserting more difficult. The induction coil, together with the feeding wires and the cable feeding element, may form a premade structural group which can be placed as a unit into the jet support from the open front face of the jet support. Thereby, the feeding wires thread themselves automatically into the oblique disposed outer conduit section without any noticeable resistance. The free ends of the feeding wires advantageously emerge in the area of local recesses in the jacket face of the jet support and can be connected with further lines in a suitable manner. Thereby, the traction relief caused by the cooperation of the cable feeding element with the coil element provides that the already made connections of the feeding wires with the connecting ends of the induction coil are not damaged or again released. The outer conduit segments may have relatively tight bores, in contrast to the known arrangement, which can be easily sealed with simple and proven means.
In injection jets which are provided with a leaking oil discharge, the central conduit segment of the cable conduit may also advantageously form a segment for a leaking oil discharge conduit.
A safe operating traction relief for the connections of the connecting ends of the induction coil with the feeding wires can be obtained in a simple manner. The coil element contains two axial bores, through each one feeding wire is fed. The cable feeding element also has two axial passageways for the line wires, which are disposed in an offset manner with respect to the bores in the coil element and are fed in close proximity to the coil element.
A simple structure is obtained, wherein the coil element and the cable feeding element are substantially relieved from the support force of the locking spring, in that the coil core being mounted in the coil element is provided with at least two edge flanges protruding over the outer circumference of the coil element. Advantageously, the coil element may be formed by injection molding on the coil core, so that both parts form a unit.
The support for the locking spring may be provided with an annular collar which supports immediately on a shoulder of the jet support which absorbs the support force. A more tolerance resistant embodiment is obtained with respect to freeing the locking of the needle movement sensor from play, when the edge flanges of the coil core are held by the support element against a shoulder of the jet support which absorbs the supporting force of the locking spring.
A simple and space saving embodiment is obtained when the coil core engages a counter shoulder of the coil element with a shoulder directed against the cable feeding element and the cable feeding element is locked between the coil element and a shoulder of the jet support.
In this embodiment, permissible tolerance deviations may also be so selected that the segments of the coil element and the cable feeding element, which receive the bores for the feeding wires may, are slightly axially braced and thereby locked shake resistant.
It
REFERENCES:
patent: 4394823 (1983-07-01), Kopse et al.
patent: 4482093 (1984-11-01), Hafner
patent: 4502326 (1985-03-01), Kaczynski
patent: 4546739 (1985-10-01), Nalsajma et al.
patent: 4573349 (1986-03-01), Slindee
patent: 4638659 (1987-01-01), Schiessle et al.
Kashnikow Andres
Robert & Bosch GmbH
Striker Michael J.
Weldon Kevin P.
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