IP Library Granted Patent US 8,408,880
Granted Patent B2
US 8,408,880 · App. 11/908,745 · Granted Apr 2, 2013

Jet suction pump

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Quick Facts
Patent No.
US 8,408,880
App. No.
11/908,745
Granted
Apr 2, 2013
Kind
B2
Abstract

A jet suction pump ( 9 ) has a pump fluid nozzle ( 13 ) with a round nozzle opening, a mixing tube ( 14 ), a suction opening, a suction line ( 12 ) arranged thereon and a canister ( 8 ), in which at least a part of the mixing tube ( 14 ) is arranged. The base ( 16 ) of the canister ( 8 ) has a non-planar embodiment ( 17 - 19 ).

Claims (29)

1. A jet suction pump, comprising:

a propulsion jet nozzle with a round nozzle opening having a width,

a mixing pipe,

a suction line coupled to the mixing pipe, and

a pot including a sidewall housing and a bottom,

wherein the mixing pipe extends into the sidewall housing of the pot and includes an outlet opening that opens downwardly into the pot, and

wherein the bottom of the pot includes:

a non-curved planar surface perpendicular to an axial direction of the propulsion jet nozzle, the non-curved planar surface extending in a single planar direction over substantially the entire bottom of the pot except in the location of one or more swirl-producing elements extending from the non-curved planar surface, the one or more swirl-producing elements configured to receive a downwardly-directed non-swirled flow of liquid delivered by the propulsion jet nozzle and produce a swirl in the flow of liquid to facilitate sealing off of the nozzle opening by the liquid,

wherein the one or more swirl-producing elements include one or more ribs extending from the non-curved planar surface.

2. The jet suction pump according to claim 1 , wherein the pot is connected to the jet suction pump.

3. The jet suction pump according to claim 2 , wherein the pot is connected to the jet suction pump by means of a latching or plug-in connection.

4. The jet suction pump according to claim 2 , wherein the pot is integrally formed on the jet suction pump.

5. The jet suction pump according to claim 4 , wherein the pot is welded or adhesively bonded to the jet suction pump.

6. The jet suction pump according to claim 1 , wherein the pot is formed on a baffle pot or in a region of a baffle pot.

7. The jet suction pump according to claim 1 , wherein the one or more ribs are arranged in a region of the outlet opening of the mixing pipe.

8. A jet suction pump, comprising:

a propulsion jet nozzle with a round nozzle opening,

a mixing pipe,

a suction line coupled to the mixing pipe, and

a pot including a sidewall housing and a bottom,

wherein mixing pipe extends into the sidewall housing of the pot and includes an outlet opening that opens downwardly into the pot, and

wherein the bottom of the pot includes:

a non-curved planar surface perpendicular to an axial direction of the propulsion jet nozzle, the non-curved planar surface extending in a single planar direction over substantially the entire bottom of the pot except in the location of a rounded pocket formed in the non-curved planar surface perpendicular to the axial direction of the propulsion jet nozzle, the rounded pocket being axially centered with respect to the mixing pipe, the rounded pocket configured to receive a downwardly-directed non-swirled flow of liquid delivered by the propulsion jet nozzle and produce a swirl in the flow of liquid to facilitate sealing off of the nozzle opening by the liquid.

9. The jet suction pump according to claim 8 , wherein the rounded pocket is arranged in a region of the outlet opening of the mixing pipe.

10. The jet suction pump according to claim 8 , wherein the pot is connected to the jet suction pump.

11. The jet suction pump according to claim 10 , wherein the pot is connected to the jet suction pump by means of a latching or plug-in connection.

12. The jet suction pump according to claim 10 , wherein the pot is integrally formed on the jet suction pump.

13. The jet suction pump according to claim 12 , wherein the pot is welded or adhesively bonded to the jet suction pump.

14. The jet suction pump according to claim 8 , wherein the pot is formed on a baffle pot or in a region of a baffle pot.

Assignments (5)
MERGER Recorded Oct 7, 2009
From: VDO AUTOMOTIVE AG
To: CONTINENTAL AUTOMOTIVE GMBH
Reel/Frame 023338/0565 →
CHANGE OF NAME Recorded Oct 5, 2009
From: SIEMENS VDO AUTOMOTIVE AG
To: VDO AUTOMOTIVE AG
Reel/Frame 023324/0738 →
MERGER Recorded Sep 9, 2009
From: SIEMENS VDO AUTOMOTIVE AG
To: CONTINENTAL AUTOMOTIVE GMBH
Reel/Frame 023205/0830 →
ASSIGNMENT OF ASSIGNOR'S INTEREST Recorded Sep 12, 2008
From: MARKEFKA, KLAUS
To: SIEMENS VDO AUTOMOTIVE AG
Reel/Frame 021521/0476 →
ASSIGNMENT OF ASSIGNOR'S INTEREST Recorded Nov 9, 2007
From: MARKEFKA, KLAUS
To: SIEMENS VDO AUTOMOTIVE AG
Reel/Frame 020090/0599 →