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

Internal bellows bearing

A bellows and bearing technology, applied in the field of reciprocating pumps, can solve problems such as bellows wear and bellows failure

Active Publication Date: 2018-08-03
GRACO INC
View PDF6 Cites 0 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Contact between the bellows and the pump rod during normal pump movement can cause bellows to wear and consequently can lead to bellows failure

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
  • Internal bellows bearing
  • Internal bellows bearing
  • Internal bellows bearing

Examples

Experimental program
Comparison scheme
Effect test

Embodiment Construction

[0023] Pump( figure 1 with figure 2 )

[0024] figure 1 with figure 2 is a cross-sectional view of the reciprocating pump 10 . will discuss figure 1 with figure 2 .

[0025] Reciprocating pump 10 includes housing 12, upper end 13 of housing 12 having bellows chamber 14, lower end 15 of housing 12 having displacement chamber 16, cylinder manifold 17, piston 18, throat seal 19, outlet 20A and 20B, inlets 22A and 22B, conduit 24, stem 26 with shoulder 28 and neck 29, sleeve 30, outer portion 32 of sleeve 30, collar 34, bellows with inner portion 38 and convolution 40 36. Nut 42, bearing 44, end cap 46 with opening 48 and passage 50, bearing 54, seal 56 and relief valve 58. figure 1 Flow F through the reciprocating pump 10 is also included.

[0026] Reciprocating pump 10 includes a bellows circulation pump configured to pump paint and / or other fluids. Although paint will be used as an example in this disclosure, it should be understood that this is only one example an...

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 reciprocating pump includes a housing, a rod, a bellows, and a bearing. The housing surrounds a bellows chamber and a displacement chamber. A first portion of the rod extends into the bellows chamber. The bellows has a first end connected to the housing and a second end connected to the rod. The bellows surrounds a second portion of the rod. The bellows includes a plurality of convolutions. Thebearing is disposed within the bellows between the bellows and the rod.

Description

[0001] Cross reference to related applications [0002] This application claims priority to US Provisional Application No. 62 / 269,524, filed December 18, 2015, entitled "Internal Bellows Bearing," the entire contents of which are incorporated herein by reference. Background technique [0003] The present disclosure relates to reciprocating pumps, and more particularly to reciprocating pumps having bellows seals. [0004] In reciprocating pumps, bellows are used to create a non-slip seal that prevents the working fluid from being exposed to other fluids, such as outside air. The longer the pump stroke of a reciprocating pump, the longer the bellows required to provide a non-slip seal. As the bellows get longer to accommodate longer pump strokes, the bellows become more flexible when compressed and eventually unstable. This causes the bellows to squirm and flex until the bellows contacts the pump rod. Contact between the bellows and the pump rod during normal movement of the ...

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 Applications(China)
IPC IPC(8): F04B43/08F04B45/02F04B53/12F04B53/14F04B39/12F04B39/10
CPCF04B1/0448F04B9/10F04B9/12F04B39/041F04B53/008F04B53/147F04B53/22F04B53/14F04B53/144F04B53/16F16C29/02F04B39/10F04B39/123F04B43/084F04B45/02F04B53/12F04B53/146F04B43/08F16C33/201F16C2208/78F16C2360/42
Inventor 蒂姆西·S·罗曼安德鲁·J·卡尔菲克
Owner GRACO INC
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