초록 ▼

A valve body defines a valve stem opening. A valve stem comprises an enlarged portion greater than the valve stem opening to thereby secure the valve stem within the valve body by limiting radially outward movement of the valve stem with respect to the valve body. A rotary member comprise upper and

A valve body defines a valve stem opening. A valve stem comprises an enlarged portion greater than the valve stem opening to thereby secure the valve stem within the valve body by limiting radially outward movement of the valve stem with respect to the valve body. A rotary member comprise upper and lower bosses. Upper and lower split trunnions, with split components that can be inserted from opposite sides of the valve body, are used to rotationally support the upper and lower bosses to permit rotation of the rotary member while preventing axial movement of the axial flow path of the valve.

대표청구항 ▼

1. A rotary valve, comprising: a valve body with a first opening on one side of said valve body and a second opening on an opposite side of said valve body, said valve body defining a fluid flow path through said valve body along a valve body axis through said first opening and said second opening o

1. A rotary valve, comprising: a valve body with a first opening on one side of said valve body and a second opening on an opposite side of said valve body, said valve body defining a fluid flow path through said valve body along a valve body axis through said first opening and said second opening of said valve body, said valve body further defining a valve stem opening;a valve stem comprising an enlarged portion, said enlarged portion comprising a diameter greater than said valve stem opening to thereby secure said valve stem within said valve body by limiting radially outward movement of said valve stem with respect to said valve body;a first set of split support elements comprising a first split support element and a second split support element, said first split support element and said second split support element each comprising a continuous curved engagement surface, and when said first set of split support elements are mounted within said valve body then said first set of split support elements form a first circular opening with said continuous curved engagement surfaces with a split between said split support elements;a rotary member with a first extension, said first extension being positioned within said first circular opening defined within said first set of split support elements whereby said first extension is rotatable within said first circular opening, said first extension being interconnectable with said valve stem within said valve body, whereby said rotary member rotates in response to rotation of said valve stem for controlling fluid flow through said fluid flow path through said valve body, said split support sections being mounted within said valve body so that said split is oriented transversely with respect to a valve body axis through said valve body. 2. The rotary valve of claim 1, further comprising said first split support element being mountable within said valve body through said first opening and said second split support element being mountable within said valve body through said second opening. 3. The rotary valve of claim 2, further comprising a second set of split support elements which are separately mountable within said valve body, when mounted within said valve body said second set of split support elements defining a second circular opening therethrough, a second extension on said rotary member positioned on an opposite side of said rotary member from said first extension, said second extension being positioned within said second circular opening defined within said second set of split support elements whereby said second extension is rotatable within said second circular opening. 4. The rotary valve of claim 3, further comprising a first bearing mounted in said first circular opening around said first extension and a second bearing mounted in said second circular opening around said second extension. 5. The rotary valve of claim 1, further comprising a first end connector which encircles said fluid flow path mounted to said valve body, a second end connector which encircles said fluid flow path mounted to said valve body opposite to said first end connector, said first end connector and said second end connector engaging said first set of split support elements within said valve body. 6. The rotary valve of claim 1, wherein said rotary member is ball shaped. 7. The rotary valve of claim 1, further comprising a stem thrust washer mounted on said enlarged portion of said valve stem, said stem thrust washer engaging an inner surface of said valve body. 8. The rotary valve of claim 1, wherein said first extension is cylindrical. 9. A method for making a rotary valve, comprising: providing a first opening in a valve body and a second opening on an opposite side of said valve body whereby a flow path through said valve body extends through said first opening and said second opening;inserting a valve stem through a valve stem opening in said valve body and utilizing an enlarged portion of said valve stem which does not pass through said valve stem opening to retain said valve stem within said valve body;mounting a rotary element in said valve body so that said rotary element is operably connected to said valve stem;inserting a first split support element of a first set of split support elements into said first opening;inserting a second split support element of said first set of split support elements into said second opening, whereby after insertion into said valve body said first set of split support elements define a first set of circular surfaces within said valve body for supporting a first portion of said rotary element for rotational movement. 10. The method of claim 9 further comprising providing that a split between said split support elements is oriented transversely with respect to an axis through said valve body. 11. The method of claim 9, comprising supporting a second portion of said rotary element for rotational movement by inserting a second set of split support elements into said valve body, said second set of split support elements defining a second set of circular surfaces for supporting said second portion of said rotary element. 12. The method of claim 11, comprising utilizing a first end connector and a second end connector for securing said first set of split support elements and said second set of split support elements within said valve body. 13. The method of claim 11, comprising positioning a first continuous circular bearing around said first portion, and positioning a second continuous circular bearing around said second portion. 14. The method of claim 9, comprising positioning a thrust washer on said enlarged portion of said valve stem to engage an inner surface of said valve body. 15. A rotary valve, comprising: a valve body, which defines a valve stem opening, a first flow path opening on one side said of said valve body and a second flow path opening on an opposite side of said valve body, said valve body defining a fluid flow path that extends through said valve body, said first flow path opening and said second flow path opening;a valve stem comprising an enlarged portion, said enlarged portion comprising a diameter greater than said valve stem opening to thereby secure said valve stem within said valve body by limiting radially outward movement of said valve stem with respect to said valve body;a rotary member comprising a first portion at a first side of said rotary member;a first set of split support elements comprising a first split support element and a second split support element, said first set of split support elements defining a first circular opening when mounted within said valve body, said first split support element being mountable into said valve body through said first flow path opening and said second split support element being mountable within said valve body through said second flow path opening, said first set of split support elements constraining said first portion of said rotary member for rotational movement, said rotary member being interconnectable with said valve stem within said valve body, whereby said rotary member rotates in response to rotation of said valve stem. 16. The rotary valve of claim 15, wherein said rotary member comprises a second portion at a second side of said rotary member opposite to said first side, and a second set of split support elements defining a second circular opening, when mounted within said valve body said second set of split support elements constraining said second portion of said rotary member for rotational movement. 17. The rotary valve of claim 16, wherein said first portion of said rotary member comprises a first cylindrical extension and said second portion of said rotary member comprises a second cylindrical extension. 18. The rotary valve of claim 15, wherein a split between said first set of split support elements is oriented transversely with respect to an axis through said rotary member.