A PISTON MEMBER, AN APPARATUS COMPRISING THE PISTON MEMBER, AND METHODS AND USE OF THE PISTON MEMBER AND THE APPARATUS

Title:

A PISTON MEMBER, AN APPARATUS COMPRISING THE PISTON MEMBER, AND METHODS AND USE OF THE PISTON MEMBER AND THE APPARATUS

Document Type and Number:

WIPO Patent Application WO/2011/044911

Kind Code:

A3

Abstract:

A piston member (1,1',1'') comprising a piston rod (4) provided with a piston (3,3',3'') serves for reciprocating inside a cylinder barrel (5,6,7,5',6',7',5'',6'',7''), said piston (3,3',3'') divides the cylinder barrel chamber (34a,34a',34a'',34b,34b',34b'') into a proximal cylinder barrel chamber (34a,34a',34a'') having a proximal capped end (35a,35a',35a'') opposite the piston (3,3',3'') and a distal cylinder barrel chamber (34b,34b',34b'') having a distal cylinder barrel end (35b,35b',35b'') opposite the piston (3,3',3''). The piston member comprises at least one sealing ring (8,8',8'') or seat arranged inside the distal cylinder barrel chamber (34b,34b',34b'') at the distal cylinder barrel end (35b,35b',45''). Preferably three consecutive piston members (1,1',1'') are arranged to operate in a series in an apparatus for transporting coal powder to a gasifier. The movement of the pistons inside the cylinder barrels is controlled in relation to each other to transport apportioned batches of coal powder to a high pressure reactor.

Inventors:

KOCH THOMAS (DK)
FRIEHLING PETER (DK)

Application Number:

PCT/DK2010/050267

Publication Date:

January 05, 2012

Filing Date:

October 13, 2010

Export Citation:

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Assignee:

TK EN AS (DK)
KOCH THOMAS (DK)
FRIEHLING PETER (DK)

International Classes:

F23K3/00; C10J3/50; F23G5/44

Domestic Patent References:

WO1993023709A1	1993-11-25
WO2009063432A2	2009-05-22

Foreign References:

DE8527423U1	1991-02-14
JPH1164075A	1999-03-05
DE4306326A1	1993-10-07
JPS5770423A	1982-04-30

Other References: