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Engine auxiliary drive for a motor vehicle with a toothed-gear drive

A technology of auxiliary transmission and gear transmission, which is applied in the direction of transmission device, friction transmission device, hoisting device, etc., can solve the problems of insufficient capacity to withstand high load, uneconomical use, high price, etc., to reduce the risk of overload, Good optimization, optimize the effect of tooth thickness

Inactive Publication Date: 2007-03-14
IMS GEAR GMBH +1
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

The problem here is that, in addition to the complex production process of such fiber-reinforced plastic gears, the high price associated with them prevents such gear pairs from being economically available
However, the use of an involute in the middle of the tooth results in only point-like contact between the meshing teeth at least in this involute region
Therefore, this known worm gear also does not have sufficient capacity to withstand high loads along its entire meshing area.

Method used

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  • Engine auxiliary drive for a motor vehicle with a toothed-gear drive
  • Engine auxiliary drive for a motor vehicle with a toothed-gear drive
  • Engine auxiliary drive for a motor vehicle with a toothed-gear drive

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Embodiment Construction

[0029] FIG. 1 shows only a reciprocating piston engine 50 symbolically by its crankshaft 52 and its main bearings 53 . The main bearing 53 represents the whole engine block, which can be designed as a tunnel structure or as an independent bearing support. A mass balancing device secured to the engine block below the crankshaft 52 is indicated generally at 54 . It consists of a balancing device housing 55 and two balancing shafts 56 , 57 with counterweights 58 rotating in opposite directions therein. The dashed line indicates the normal plane 59 through the main bearing 53 . The bearings of the mass balance device 54 lie in this plane. The balance shafts 56, 57 are driven by a gear 2 which is rotationally fixedly connected with the crankshaft 52 through the transmission gear 1, and the synchronous gears 61, 62 are used to make the balance shafts 56, 57 in opposite directions and at the same speed.

[0030] 2a and 2b show the toothing geometry of the tooth pairing of the gear...

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Abstract

The invention relates to an engine auxiliary transmission of a motor vehicle, comprising a gear transmission having a first gear (1) and a second gear (2) with mutually meshing tooth surfaces (11, 12), wherein the gears ( 1, 2) The tooth surfaces (11, 12) are designed to have no involute in the force transmission area (13), and directly or at least approximately directly transition from the concave area to the convex area; and wherein the first gear ( 1) Made of plastic.

Description

technical field [0001] The invention relates to a motor vehicle engine auxiliary transmission comprising a gear transmission according to the features of the preamble of claim 1 . Background technique [0002] Engine auxiliary transmission refers to that kind of transmission inside the car, which does not directly lead to driving the wheels and thus not directly to motion, but through which some auxiliary devices inside the car are driven by the engine. Among such engine auxiliary transmissions are, in particular, transmissions of camshafts, oil pumps or balance shafts of internal combustion engines. Uncomfortable vibrations, especially in four-cylinder internal combustion engines, can be significantly reduced by means of these balancing shafts. [0003] Inertial forces and moments of inertia are generated by means of the known balance shafts, which counteract the inertial forces and moments of inertia generated by the internal combustion engine and thus cancel them out. F...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): F16H55/08F16H15/26F16F15/26
CPCY10T74/19963F16H2055/0893F16H55/08F16F15/265
Inventor S·奥博勒C·弗雷德里希
Owner IMS GEAR GMBH
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