Piston housing system and apparatus

Patent metadata

Field	Value
Publication number	US-9958068-B2
Application number	US-201414222193-A
Country	US
Kind code	B2
Filing date	Mar 21, 2014
Priority date	Mar 21, 2014
Publication date	May 1, 2018
Grant date	May 1, 2018

Abstract

A piston housing manufactured by an additive manufacturing process is provided. The piston housing may comprise a plurality of chambers. The chambers may be in fluid communication with one another via non-linear fluid passageways. The non-linear fluid passageways may be defined in structural members configured to stiffen the piston housing.

First claim

What is claimed is:

1. A piston housing, comprising:
a body including:
a first fluid chamber,
a first structural member comprising a first hollow chamber defining a non-linear fluid passage, the non-linear fluid passage in fluid communication with the first fluid chamber,
a second fluid chamber in series fluid communication with the first fluid chamber via the non-linear fluid passage,
a second structural member configured as a box beam extending between the first fluid chamber and the second fluid chamber, the second structural member comprising a second hollow chamber,
and
a web disposed between the first structural member and the second structural member, wherein the web defines a hollow portion disposed between the first structural member and the second structural member,

wherein the first structural member and the second structural member are formed from an additive manufacturing process,
wherein the second structural member encloses the second hollow chamber.

2. The piston housing of claim 1 , wherein the body is formed from the additive manufacturing process.

3. The piston housing of claim 2 , wherein the additive manufacturing process is configured to reduce stress concentrations in the first fluid chamber.

4. The piston housing of claim 1 , wherein the body comprises a mounting interface.

5. The piston housing of claim 1 , wherein the non-linear fluid passage is a curved passage.

6. The piston housing of claim 1 , wherein at least one of the web and the box beam is configured to resist at least one of a bending load and a torque.

7. A method, comprising:
defining a piston housing design having a first fluid chamber design connected in series to a second fluid chamber design via a first structural member design, wherein the first structural member design includes a first hollow chamber defining a non-linear fluid passage and a second structural member design, wherein the second structural member design includes a box beam and a web; and
manufacturing, by an additive manufacturing process, a piston housing based on the piston housing design, the piston housing comprising:
a first fluid chamber, manufactured based on the first fluid chamber design;
a second fluid chamber, manufactured based on the second fluid chamber design;
a first structural member, manufactured based on the first structural member design, wherein the first structural member includes the first hollow chamber defining the non-linear fluid passage, whereby the first fluid chamber is in series fluid communication with the second fluid chamber; and
a second structural member, manufactured based on the second structural member design, wherein the second structural member includes a second hollow chamber;
wherein the second structural member includes the box beam disposed between the first fluid chamber and the second fluid chamber, the web disposed between the box beam and the non-linear fluid passage, wherein the web defines a hollow portion disposed between the box beam and the non-linear fluid passage,
wherein the second structural member encloses the second hollow chamber.

8. The method of claim 7 , further comprising:
determining a mounting interface design; and
adapting the piston housing design to include the mounting interface design.

9. The method of claim 7 , wherein the piston housing further comprises a plurality of fluid chambers in fluid communication with each other, and wherein the plurality of fluid chambers include the first fluid chamber and the second fluid chamber.

10. The method of claim 7 , wherein the piston housing includes an interface structure.

Assignees

• Goodrich Corp

Inventors

• Hinton Jantzen
• Herrmann Nathaniel J
• Whittle Scott

Classifications

• F16J1/09 Primary

  with means for guiding fluids (F16J1/08 takes precedence) · CPC title

• F16D55/00 Primary

  Brakes with substantially-radial braking surfaces pressed together in axial direction, e.g. disc brakes (similar clutches F16D13/38) · CPC title

• B22F10/12

  by photopolymerisation, e.g. stereolithography [SLA] or digital light processing [DLP] · CPC title

• B22F10/25

  Direct deposition of metal particles, e.g. direct metal deposition [DMD] or laser engineered net shaping [LENS] · CPC title

• B22F10/18

  by mixing binder with metal in filament form, e.g. fused filament fabrication [FFF] · CPC title