Hydraulic circuits for transmissions

A technology for hydraulic circuits and transmissions, applied to components with teeth, fluid pressure actuation devices, fluid pressure actuation system components, etc., can solve the problems of high flow loss, high installation cost, complex circuit structure of hydraulic circuits, etc. Achieve the effect of reducing oil volume and fast operation

Active Publication Date: 2020-12-25
HYUNDAI MOTOR CO LTD +1
View PDF8 Cites 0 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0008] As described above, since the hydraulic circuit for the transmission in the related art controls friction elements by using a plurality of valves, the hydraulic circuit has a complicated circuit structure
Therefore, the hydraulic circuit for the transmission in the related art has problems of high installation cost and high flow loss

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
  • Hydraulic circuits for transmissions
  • Hydraulic circuits for transmissions
  • Hydraulic circuits for transmissions

Examples

Experimental program
Comparison scheme
Effect test

Embodiment Construction

[0033] Hereinafter, exemplary embodiments of the present invention will be described in detail with reference to the accompanying drawings. In the drawings, the same reference numbers will be used throughout to designate the same or equivalent elements. Also, detailed descriptions of well-known features or functions will be omitted so as not to unnecessarily obscure the gist of the present invention.

[0034] Words such as "first," "second," "A," "B," "(a)," "(b)," etc. may be used herein to describe elements of the invention. These words are only used to distinguish one element from another element, and the content, sequence, order or number of these elements are not limited by these words. Unless otherwise defined, all terms (including technical and scientific terms) used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this invention belongs. Those terms defined in commonly used dictionaries are interpreted as having the sam...

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

The present invention provides a hydraulic circuit for a transmission, comprising: friction elements, operating elements that engage or disengage the transmission; state; and a direct control valve that receives oil through the pump and, when operating the friction elements, adjusts the primary pressure to create an operating pressure for the friction elements to operate. The friction element includes: a hydraulic chamber into which oil is introduced; a first supply hole through which oil passing through the pump is supplied to the hydraulic chamber; and a second supply hole through which oil passing through the direct control valve passes Supply to hydraulic chamber.

Description

[0001] Cross References to Related Applications [0002] This application is based on and claims priority from Korean Patent Application No. 10-2017-0065537 filed with the Korean Intellectual Property Office on May 26, 2017, the entire contents of which are incorporated herein by reference. technical field [0003] The invention relates to a hydraulic circuit for a transmission. Background technique [0004] An automatic transmission for a vehicle automatically converts power generated from a prime mover (such as an engine, an electric motor, etc.) into a torque suitable for facilitating driving of the vehicle and a rotational speed in RPM. [0005] An automatic transmission includes: a torque converter to which the power of a prime mover is supplied; a plurality of operating elements capable of converting the power supplied through the torque converter into a torque suitable for driving a vehicle and a rotational speed in RPM a plurality of friction elements, which engage ...

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 & AuthorityPatents(China)
IPC IPC(8): F16H61/30F15B21/08F15B21/041F15B21/0423F15B19/00F15B11/17F15B13/06
CPCF15B11/17F15B13/06F15B19/00F15B21/041F15B21/042F15B21/087F16H61/30F16H61/065F16H61/068F16H63/3026F16H61/0206F16H61/00F16H61/0009F16H2061/0046F16H2061/0258F16H61/0025
Inventor李俊澔
OwnerHYUNDAI MOTOR CO LTD