Looking for breakthrough ideas for innovation challenges? Try Patsnap Eureka!

Hydraulic system for controlling controllable-pitch propeller

A hydraulic system and hydraulic pump technology, applied in the field of controllable pitch propellers, can solve the problems of increasing investment and maintenance costs

Pending Publication Date: 2021-01-12
WUHAN MARINE MACHINERY PLANT
View PDF7 Cites 1 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, double pumps increase investment and maintenance costs

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 system for controlling controllable-pitch propeller
  • Hydraulic system for controlling controllable-pitch propeller
  • Hydraulic system for controlling controllable-pitch propeller

Examples

Experimental program
Comparison scheme
Effect test

Embodiment Construction

[0031] In order to make the purpose, technical solution and advantages of the present disclosure clearer, the implementation manners of the present disclosure will be further described in detail below in conjunction with the accompanying drawings.

[0032] figure 1 It is a hydraulic diagram of a hydraulic system used for controllable pitch propeller control provided by an embodiment of the present disclosure. In order to introduce the hydraulic system more clearly, the following combines figure 1 , first explain the structure and working principle of the controllable pitch propeller.

[0033] In this embodiment, the controllable pitch propeller includes a hub oil cylinder 200 and a second three-position four-way reversing valve 300 . Wherein, the piston rod of the servo cylinder 4 is connected with the spool of the second three-position four-way reversing valve 300, and the valve sleeve of the second three-position four-way reversing valve 300 is connected with the piston rod...

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 invention provides a hydraulic system for controlling a controllable-pitch propeller, and belongs to the technical field of controllable-pitch propellers. The hydraulic system comprises an oil tank, a hydraulic pump set, a control assembly and a variable-pitch assembly. The control assembly comprises a three-position three-way reversing valve and a first two-position four-way reversing valve,and the variable-pitch assembly comprises a servo oil cylinder, a propeller hub oil cylinder and a first three-position four-way reversing valve. According to the hydraulic system for controlling thecontrollable-pitch propeller, the variable pitch of the controllable-pitch propeller can be controlled through a single pump, so that the investment and maintenance costs are reduced.

Description

technical field [0001] The disclosure belongs to the technical field of controllable pitch propellers, in particular to a hydraulic system for controllable pitch propellers. Background technique [0002] The controllable pitch propeller is a kind of ship power propulsion device. The controllable pitch propeller includes the propeller hub and the propeller blade. Specifically, the hydraulic system controls the crank pin disc in the propeller hub to make the propeller rotate around the propeller axis, thereby adjusting the propeller The pitch, and then realize the forward, backward, speed change, stop and other actions of the ship. [0003] In the related art, the hydraulic system of the controllable pitch propeller includes the hub cylinder and the servo cylinder, wherein the piston of the hub cylinder is connected to the crank pin plate, and the servo cylinder can control the hydraulic oil to enter the hub cylinder, so that it can be controlled by The servo cylinder drives ...

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): F15B11/024F15B13/02F15B15/17B63H3/08
CPCF15B11/024F15B13/02F15B15/17B63H3/08B63H2003/088
Inventor 程校江亚琪顾德亮
Owner WUHAN MARINE MACHINERY PLANT
Who we serve
  • R&D Engineer
  • R&D Manager
  • IP Professional
Why Patsnap Eureka
  • Industry Leading Data Capabilities
  • Powerful AI technology
  • Patent DNA Extraction
Social media
Patsnap Eureka Blog
Learn More
PatSnap group products

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

© 2024 PatSnap. All rights reserved.Legal|Privacy policy|Modern Slavery Act Transparency Statement|Sitemap|About US| Contact US: help@patsnap.com