Unlock instant, AI-driven research and patent intelligence for your innovation.

Apparatus for reducing engine torque fluctuations

A torque ripple, engine technology, applied in the field of devices with rotational irregularities, can solve problems such as increased non-uniformity

Inactive Publication Date: 2015-06-17
GM GLOBAL TECH OPERATIONS LLC
View PDF4 Cites 0 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

This non-uniformity increases with decreasing number of cylinders, low RPM, and high load

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
  • Apparatus for reducing engine torque fluctuations
  • Apparatus for reducing engine torque fluctuations
  • Apparatus for reducing engine torque fluctuations

Examples

Experimental program
Comparison scheme
Effect test

Embodiment Construction

[0038] The following description is merely exemplary in nature and is not intended to limit the disclosure, its application, or uses.

[0039] Referring now to the accompanying drawings, Figure 1 to Figure 3 An apparatus embodying the principles of the invention is shown in and referenced 10 . As its main component, the device 10 comprises a crankshaft 12 with radially projecting arms 14 . A crankshaft 12 is connected to reciprocating internal combustion engine pistons by means of connecting rods, and the crankshaft 12 rotates about an axis A. Arm 14 may be connected to crankshaft 12 or may be integrally formed with crankshaft 12 . A flywheel 16 is mounted adjacent to the arm 14 and a control ring 18 is axially adjacent to the flywheel 16 .

[0040] A circular coupling 22 is mounted around the control ring 18 and the circular coupling 22 includes protruding radial arms 24 . Radial arm 24 is connected to link members 26 and 28 at hinge or pivot pin 32 . Additionally, coup...

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

An apparatus for reducing torque fluctuations of a combustion engine includes a crankshaft mounted in the engine, flywheel coupled to the crankshaft, and a first actuator and a second actuator coupled to the flywheel. The flywheel generates a counter torque to the torque generated by the engine during combustion, and the first and the second actuators are operated to adjust the magnitude and the phase of the counter torque generated by the flywheel to suppress fluctuations associated the engine torque.

Description

technical field [0001] The invention relates to a device for reducing engine torque fluctuations. More specifically, the invention relates to a device for reducing rotational irregularities of the crankshaft of an internal combustion engine. Background technique [0002] The statements in this section merely provide background information related to the present disclosure and may or may not constitute prior art. [0003] Generally, the rotation of the crankshaft of an internal combustion engine is not uniform due to the duty cycle associated with the engine's pistons. This non-uniformity increases with decreasing number of cylinders, low speed, and high load. Attempts to counteract these rotational irregularities include torsionally attaching large weights to the crankshaft. For example, linkage systems have been employed between the flywheel and the crankshaft such that the flywheel oscillates with respect to the crankshaft the same number of times per crankshaft revolut...

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
Patent Type & Authority Patents(China)
IPC IPC(8): F02B61/06
CPCF02B75/06F16F15/31Y10T74/2121
Inventor S. 白D. L. 杜森贝里
Owner GM GLOBAL TECH OPERATIONS LLC