Patent EP0122551A2 successfully refreshed from Google Patents.
EP0122551A2
Expired / Lapsed
EP
⏱️ 0.0 years remaining
Apparatus for leakage testing the cooling circuit of cylinder heads of internal combustion engines
Assignee: Individual
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Filing: 1984-04-05
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Granted: —
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Expires: 2004-04-05
Abstract
Abstract The apparatus comprises a pivotable bench (2) about a horizontal axis, which includes longitudinal stringers (5) holding a cylinder head (6) to be tested. Mounted for oscillation on the pivoting bench (2) there are means for fastening to the cylinder head a top plate (9) to seal off the cylinder head cooling ports. The plate (9) has fittings (22a, 22b) for admitting a pressurized test fluid through the cylinder head cooling circuit. The pivoting bench (2) further includes air cylinders (25) for fastening small side cover plates (27, 28) to the cylinder head for sealing the cooling circuit side ports.
Inventors
- 👤 Giovanni Sbarzaglia
Bibliographic Details
Application Number
—
Jurisdiction
EP
Data Source
google_patents
Last Synchronized
2026-11-04 03:16
CPC Classifications
G; G01; G01M; G01M3/00; G01M3/02; G01M3/025
Claims Analysis
Total Claims: 8
Claim 1
Independent Claim
112 words
An apparatus for leakage testing the cooling circuit of cylinder heads of internal combustion engines, characterized in that it comprises a pivoting bench (2) about a horizontal axis including means (5) for holding a cylinder head (6) to be tested, means mounted for oscillation on said pivoting bench (2) and adapted to fasten to said cylinder head (6) a cover plate (19) sealing off top ports of the cylinder head cooling circuit, said plate (19) being provided with fittings (22a,22b) for admitting a pressurized test fluid through said cooling circuit, and means for fastening to said cylinder head (6) small cover side plates (27,28) sealing the side ports in said cooling circuit.
Claim 2
Independent Claim
112 words
An apparatus for leakage testing the cooling circuit of cylinder heads of internal combustion engines, characterized in that it comprises a pivoting bench (2) about a horizontal axis including means (5) for holding a cylinder head (6) to be tested, means mounted for oscillation on said pivoting bench (2) and adapted to fasten to said cylinder head (6) a cover plate (19) sealing off top ports of the cylinder head cooling circuit, said plate (19) being provided with fittings (22a,22b) for admitting a pressurized test fluid through said cooling circuit, and means for fastening to said cylinder head (6) small cover side plates (27,28) sealing the side ports in said cooling circuit.
Claim 3
Dependent Claim
93 words
An apparatus according to Claim 1, characterized in that said pivoting bench (2) comprises a pair of coaxial rims (3a,3b) carrying internally respective frames (4) wherebetween parallel stringers (5) are attached at the bottom for supporting said cylinder head (6) and a pair of shafts (12) are carried rotatably at the top having oscillating means (16) for clanping said cover plate mounted thereon, said shafts (12) being adapted for simultaneous oscillation in opposite directions on actuation of air cylinders (14a,14b) articulated to arms (13a,13b) attached transversely to the ends of said shafts (12).
Claim 4
Independent Claim
45 words
An apparatus according to the preceding claims, characterized in that said oscillating clamping means for said cover plate (19) comprises a plurality of bushings (16) mounted slidably on said shafts (12) and having respectively a cross arm (17) carrying a pressure foot (18) articulated thereto.
Claim 5
Dependent Claim
66 words
An apparatus according to Claim 1, characterized in that said clamping means (16) for said side plates (27,28) comprise on one side a pair of detents (29) which are adjustable longitudinally to said pivoting bench (2), and on the opposite side a plurality of air cylinders (25) mounted, at adjustable positions longitudinally to said pivoting bench (2), transversely to the axis of said pivoting bench (2).
Claim 6
Dependent Claim
59 words
An apparatus according to Claim 1, characterized in that said cover plate (19) has, on one face mating with said cylinder head, a plurality of seats (20) for sealing gaskets corresponding to said ports of the cylinder head cooling circuit and has throughgoing holes (21) for said test fluid delivery fittings (22a,22b) and cylinder head locating pins formed therein.
Claim 7
Independent Claim
47 words
An apparatus according to at least Claims 1 and 2, characterized in that said rims (3a,3b) of said pivoting bench (2) are mounted on respective pairs of rollers (8) carried rotatably on a base of the apparatus and being adapted for simultaneous drive off a motor means.
Claim 8
Independent Claim
27 words
An apparatus for leakage testing the cooling circuit of cylinder heads of internal combustion engines according to the preceding claims and substantially as herein described and illustrated.
References Cited (Backward Citations)
No citation records indexed.
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