Check patentability & draft patents in minutes with Patsnap Eureka AI!

One-piece integrated chain snubber and oil diverter for a transaxle

a transaxle and integrated technology, applied in the direction of belt/chain/gearing, gear lubrication/cooling, gear lubrication/cooling, etc., can solve the problems of increasing cost and complexity of the transaxle, affecting the fuel efficiency of the vehicle, and affecting the efficiency of the transaxle. , to achieve the effect of reducing overall cost, reducing the cost of the whole process, and simplifying the manufacture of the component and its assembly

Active Publication Date: 2017-04-20
FORD GLOBAL TECH LLC
View PDF43 Cites 9 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Benefits of technology

The invention is a single piece that combines a flat-plate snubber for reducing chain resonance with an oil diverter for controlling oil flow. This simplifies manufacturing and assembly, reduces costs, and improves fuel efficiency by reducing system drag and parts count. Additionally, the oil diverter avoids the need for additional components and minimizes contact with the drive chain, which improves overall performance.

Problems solved by technology

Movement of the chain through a bulk volume of oil can result in oil windage and parasitic losses.
When there is significant interaction between the drive chain and the transmission fluid or oil, undesirable circulation patterns may result.
These measures add cost and complexity to the transaxle.
During operation of the transaxle, resonant vibrations may occur in the tension side of the drive chain between the sprockets.
The space available for containing a transaxle in a vehicle may be severely limited, making it difficult to fit all the necessary components without comprising functionality.

Method used

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
View more

Image

Smart Image Click on the blue labels to locate them in the text.
Viewing Examples
Smart Image
  • One-piece integrated chain snubber and oil diverter for a transaxle
  • One-piece integrated chain snubber and oil diverter for a transaxle
  • One-piece integrated chain snubber and oil diverter for a transaxle

Examples

Experimental program
Comparison scheme
Effect test

Embodiment Construction

[0022]Referring to FIG. 1, a transaxle assembly 10 includes a case 11 containing sprockets 12 and 13 together with a drive chain 14. Chain 14 has a tension side 15 and a slack side 16. Case 11 further defines an interior volume 17 which receives transmission oil circulated by a sump (not shown). Case 11 may include an accumulator section 18 for holding a volume of oil to support start-stop engine operation. Alongside the periphery of tension side 15 of chain 14, a pair of bosses 20 and 21 extend from the side of case 11 in order to receive an integrated snubber / diverter 25 attached to bosses 20 and 21 by bolts 26 and 27 as shown in FIG. 2.

[0023]A first embodiment of the integrated snubber / diverter is shown in FIGS. 3-9. In addition, FIG. 3 shows the relationship and positioning of snubber 25 with respect to the transaxle case. Snubber 25 includes a molded base plate 30 which is generally planar and supports and integrates all the various elements of the combined snubber / diverter. Po...

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to View More

PUM

No PUM Login to View More

Abstract

A transaxle for a vehicle has a case adapted to retain a transaxle oil. A chain transfers torque between transaxle gears, and a snubber is disposed along the tension side of the chain. The snubber comprises a molded base plate with a pair of mounting inserts extending transverse to the base plate to mount the snubber to a case of the transaxle. A snubber plate is integrally molded with the base plate and extends substantially transversely from a longitudinal side of the base plate to frame an edge of the chain. A ramp plate is integrally molded with the base plate and extends substantially transversely from the base plate and obliquely with respect to the snubber plate. A scoop is integrally molded with the base plate and extends from the ramp plate configured to transversely deflect a flow of transaxle oil directed to the scoop by the ramp plate.

Description

CROSS REFERENCE TO RELATED APPLICATIONS[0001]Not Applicable.STATEMENT REGARDING FEDERALLY SPONSORED RESEARCH[0002]Not Applicable.BACKGROUND OF THE INVENTION[0003]The present invention relates in general to chain-driven transaxles for motor vehicles, and, more specifically, to an integrated chain snubber and oil diverter.[0004]A transaxle (i.e., an assembly combining a transmission and a differential) may utilize a drive link to transfer power from the engine crankshaft to the input of the transmission or gearbox. A drive chain and sprockets are commonly used for the link.[0005]Since the drive chain is typically below the sump level, it is immersed in transmission oil. Movement of the chain through a bulk volume of oil can result in oil windage and parasitic losses. Consequently, baffling structures are often put in place around the chain to reduce interaction between the chain and oil.[0006]When there is significant interaction between the drive chain and the transmission fluid or o...

Claims

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to View More

Application Information

Patent Timeline
no application Login to View More
IPC IPC(8): F16H57/04F16H7/18F16H57/05
CPCF16H57/0423F16H57/05F16H2007/185F16H7/18F16H57/0457
Inventor STEWARD, MARKARCOTA, SRINIVAS V.YASNOGORODSKIY, VLADIMIRHEUVER, BRADLEY R.
Owner FORD GLOBAL TECH LLC
Features
  • R&D
  • Intellectual Property
  • Life Sciences
  • Materials
  • Tech Scout
Why Patsnap Eureka
  • Unparalleled Data Quality
  • Higher Quality Content
  • 60% Fewer Hallucinations
Social media
Patsnap Eureka Blog
Learn More

Browse by: Latest US Patents, China's latest patents, Technical Efficacy Thesaurus, Application Domain, Technology Topic, Popular Technical Reports.

© 2025 PatSnap. All rights reserved.Legal|Privacy policy|Modern Slavery Act Transparency Statement|Sitemap|About US| Contact US: help@patsnap.com