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AssigneeRobert Bosch GmbH
InventorsJeannette Kopp, Bernd Berghaenel, Luiz-Alexandre Colodel, Sophie-Charlotte Deger-Panthene, Stephan Wehr
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Slide valve (1), in particular for a waste heat recovery system of a combustion engine, having a valve housing (4), wherein an inlet passage (5) and an outlet passage (6) are formed in the valve housing (4). A substantially cylindrical slide (3) is guided in a longitudinally movable manner in a guide bore (20) in the valve housing (4), wherein the guide bore (20) can be connected hydraulically to the inlet passage (5) and to the outlet passage (6). A closing body (35, 35a) is arranged on the slide (3), wherein a slide seat (75, 75a) is formed between the guide bore (20) and the closing body (35, 35a). The guide bore (20) and the sliding body (35, 35a) form a sliding pair, wherein the sliding pair has the material combination steel-graphite or the material combination ceramic-graphite.
A slide valve (1), having a valve housing (4), wherein an inlet passage (5) and an outlet passage (6) are formed in the valve housing (4), wherein a substantially cylindrical slide (3) is guided in a longitudinally movable manner in a guide bore (20) in the valve housing (4), wherein the guide bore (20) is configured to be connected hydraulically to the inlet passage (5) and to the outlet passage (6), wherein a closing body (35, 35a) is arranged on the slide (3), wherein a slide seat (75, 75a) is formed between the guide bore (20) and the closing body (35, 35a), wherein the guide bore (20) and the sliding body (35, 35a) form a sliding pair, and wherein the sliding pair has a material combination steel-graphite, in which the guide bore is graphite and the sliding body is steel, or wherein the sliding pair has a material combination ceramic-graphite, in which the guide bore is ceramic and the sliding body is graphite, or the guide bore is graphite and the sliding body is ceramic.
A slide valve (1), having a valve housing (4), wherein an inlet passage (5) and an outlet passage (6) are formed in the valve housing (4), wherein a substantially cylindrical slide (3) is guided in a longitudinally movable manner in a guide bore (20) in the valve housing (4), wherein the guide bore (20) is configured to be connected hydraulically to the inlet passage (5) and to the outlet passage (6), wherein a closing body (35, 35a) is arranged on the slide (3), wherein a slide seat (75, 75a) is formed between the guide bore (20) and the closing body (35, 35a), wherein the guide bore (20) and the sliding body (35, 35a) form a sliding pair, and wherein the sliding pair has a material combination steel-graphite, in which the guide bore is graphite and the sliding body is steel.
A slide valve (1), having a valve housing (4), wherein an inlet passage (5) and an outlet passage (6) are formed in the valve housing (4), wherein a substantially cylindrical slide (3) is guided in a longitudinally movable manner in a guide bore (20) in the valve housing (4), wherein the guide bore (20) is configured to be connected hydraulically to the inlet passage (5) and to the outlet passage (6), wherein a closing body (35, 35a) is arranged on the slide (3), wherein a slide seat (75, 75a) is formed between the guide bore (20) and the closing body (35, 35a), wherein the guide bore (20) and the sliding body (35, 35a) form a sliding pair, and wherein the sliding pair has a material combination ceramic-graphite, in which the guide bore is ceramic and the sliding body is graphite, or the guide bore is graphite and the sliding body is ceramic.
Dependencies are inferred from the claim text.